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Import C++ Standard Template Library

Browse source 
You can now use the hardest fastest and most dangerous language there is
with Cosmopolitan. So far about 75% of LLVM libcxx has been added. A few
breaking changes needed to be made to help this go smoothly.

- Rename nothrow to dontthrow
- Rename nodiscard to dontdiscard
- Add some libm functions, e.g. lgamma, nan, etc.
- Change intmax_t from int128 to int64 like everything else
- Introduce %jjd formatting directive for int128_t
- Introduce strtoi128(), strtou128(), etc.
- Rename bsrmax() to bsr128()

Some of the templates that should be working currently are std::vector,
std::string, std::map, std::set, std::deque, etc.
This commit is contained in:
Justine Tunney 2022-03-22 05:51:41 -07:00
parent 5022f9e920
commit 868af3f950
286 changed files with 123987 additions and 507 deletions
Download patch file Download diff file Expand all files Collapse all files

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BasedOnStyle: LLVM
---
Language: Cpp
Standard: Cpp03
AlwaysBreakTemplateDeclarations: true
PointerAlignment: Left
# Disable formatting options which may break tests.
SortIncludes: false
ReflowComments: false
---

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This file is a partial list of people who have contributed to the LLVM/libc++
project. If you have contributed a patch or made some other contribution to
LLVM/libc++, please submit a patch to this file to add yourself, and it will be
done!
The list is sorted by surname and formatted to allow easy grepping and
beautification by scripts. The fields are: name (N), email (E), web-address
(W), PGP key ID and fingerprint (P), description (D), and snail-mail address
(S).
N: Saleem Abdulrasool
E: compnerd@compnerd.org
D: Minor patches and Linux fixes.
N: Dan Albert
E: danalbert@google.com
D: Android support and test runner improvements.
N: Dimitry Andric
E: dimitry@andric.com
D: Visibility fixes, minor FreeBSD portability patches.
N: Holger Arnold
E: holgerar@gmail.com
D: Minor fix.
N: Ruben Van Boxem
E: vanboxem dot ruben at gmail dot com
D: Initial Windows patches.
N: David Chisnall
E: theraven at theravensnest dot org
D: FreeBSD and Solaris ports, libcxxrt support, some atomics work.
N: Marshall Clow
E: mclow.lists@gmail.com
E: marshall@idio.com
D: C++14 support, patches and bug fixes.
N: Jonathan B Coe
E: jbcoe@me.com
D: Implementation of propagate_const.
N: Glen Joseph Fernandes
E: glenjofe@gmail.com
D: Implementation of to_address.
N: Eric Fiselier
E: eric@efcs.ca
D: LFTS support, patches and bug fixes.
N: Bill Fisher
E: william.w.fisher@gmail.com
D: Regex bug fixes.
N: Matthew Dempsky
E: matthew@dempsky.org
D: Minor patches and bug fixes.
N: Google Inc.
D: Copyright owner and contributor of the CityHash algorithm
N: Howard Hinnant
E: hhinnant@apple.com
D: Architect and primary author of libc++
N: Hyeon-bin Jeong
E: tuhertz@gmail.com
D: Minor patches and bug fixes.
N: Argyrios Kyrtzidis
E: kyrtzidis@apple.com
D: Bug fixes.
N: Bruce Mitchener, Jr.
E: bruce.mitchener@gmail.com
D: Emscripten-related changes.
N: Michel Morin
E: mimomorin@gmail.com
D: Minor patches to is_convertible.
N: Andrew Morrow
E: andrew.c.morrow@gmail.com
D: Minor patches and Linux fixes.
N: Michael Park
E: mcypark@gmail.com
D: Implementation of <variant>.
N: Arvid Picciani
E: aep at exys dot org
D: Minor patches and musl port.
N: Bjorn Reese
E: breese@users.sourceforge.net
D: Initial regex prototype
N: Nico Rieck
E: nico.rieck@gmail.com
D: Windows fixes
N: Jon Roelofs
E: jroelofS@jroelofs.com
D: Remote testing, Newlib port, baremetal/single-threaded support.
N: Jonathan Sauer
D: Minor patches, mostly related to constexpr
N: Craig Silverstein
E: csilvers@google.com
D: Implemented Cityhash as the string hash function on 64-bit machines
N: Richard Smith
D: Minor patches.
N: Joerg Sonnenberger
E: joerg@NetBSD.org
D: NetBSD port.
N: Stephan Tolksdorf
E: st@quanttec.com
D: Minor <atomic> fix
N: Michael van der Westhuizen
E: r1mikey at gmail dot com
N: Larisse Voufo
D: Minor patches.
N: Klaas de Vries
E: klaas at klaasgaaf dot nl
D: Minor bug fix.
N: Zhang Xiongpang
E: zhangxiongpang@gmail.com
D: Minor patches and bug fixes.
N: Xing Xue
E: xingxue@ca.ibm.com
D: AIX port
N: Zhihao Yuan
E: lichray@gmail.com
D: Standard compatibility fixes.
N: Jeffrey Yasskin
E: jyasskin@gmail.com
E: jyasskin@google.com
D: Linux fixes.

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Open Source License
Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT
All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal with
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
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* Redistributions of source code must retain the above copyright notice,
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Upstream origin
git@github.com:llvm-mirror/libcxx.git
commit 78d6a7767ed57b50122a161b91f59f19c9bd0d19
Author: Zoe Carver <z.zoelec2@gmail.com>
Date: Tue Oct 22 15:16:49 2019 +0000

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// -*- C++ -*-
//===---------------------- __bsd_locale_fallbacks.h ----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// The BSDs have lots of *_l functions. This file provides reimplementations
// of those functions for non-BSD platforms.
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
#define _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H
#include "third_party/libcxx/stdlib.h"
#include "libc/mem/fmt.h"
#include "third_party/libcxx/memory"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
inline _LIBCPP_INLINE_VISIBILITY decltype(MB_CUR_MAX)
__libcpp_mb_cur_max_l(locale_t __l) {
__libcpp_locale_guard __current(__l);
return MB_CUR_MAX;
}
inline _LIBCPP_INLINE_VISIBILITY wint_t __libcpp_btowc_l(int __c,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return btowc(__c);
}
inline _LIBCPP_INLINE_VISIBILITY int __libcpp_wctob_l(wint_t __c,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return wctob(__c);
}
inline _LIBCPP_INLINE_VISIBILITY size_t
__libcpp_wcsnrtombs_l(char* __dest, const wchar_t** __src, size_t __nwc,
size_t __len, mbstate_t* __ps, locale_t __l) {
__libcpp_locale_guard __current(__l);
return wcsnrtombs(__dest, __src, __nwc, __len, __ps);
}
inline _LIBCPP_INLINE_VISIBILITY size_t __libcpp_wcrtomb_l(char* __s,
wchar_t __wc,
mbstate_t* __ps,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return wcrtomb(__s, __wc, __ps);
}
inline _LIBCPP_INLINE_VISIBILITY size_t
__libcpp_mbsnrtowcs_l(wchar_t* __dest, const char** __src, size_t __nms,
size_t __len, mbstate_t* __ps, locale_t __l) {
__libcpp_locale_guard __current(__l);
return mbsnrtowcs(__dest, __src, __nms, __len, __ps);
}
inline _LIBCPP_INLINE_VISIBILITY size_t __libcpp_mbrtowc_l(wchar_t* __pwc,
const char* __s,
size_t __n,
mbstate_t* __ps,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return mbrtowc(__pwc, __s, __n, __ps);
}
inline _LIBCPP_INLINE_VISIBILITY int __libcpp_mbtowc_l(wchar_t* __pwc,
const char* __pmb,
size_t __max,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return mbtowc(__pwc, __pmb, __max);
}
inline _LIBCPP_INLINE_VISIBILITY size_t __libcpp_mbrlen_l(const char* __s,
size_t __n,
mbstate_t* __ps,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return mbrlen(__s, __n, __ps);
}
inline _LIBCPP_INLINE_VISIBILITY lconv* __libcpp_localeconv_l(locale_t __l) {
__libcpp_locale_guard __current(__l);
return localeconv();
}
inline _LIBCPP_INLINE_VISIBILITY size_t __libcpp_mbsrtowcs_l(wchar_t* __dest,
const char** __src,
size_t __len,
mbstate_t* __ps,
locale_t __l) {
__libcpp_locale_guard __current(__l);
return mbsrtowcs(__dest, __src, __len, __ps);
}
inline int __libcpp_snprintf_l(char* __s, size_t __n, locale_t __l,
const char* __format, ...) {
va_list __va;
va_start(__va, __format);
__libcpp_locale_guard __current(__l);
int __res = vsnprintf(__s, __n, __format, __va);
va_end(__va);
return __res;
}
inline int __libcpp_asprintf_l(char** __s, locale_t __l, const char* __format,
...) {
va_list __va;
va_start(__va, __format);
__libcpp_locale_guard __current(__l);
int __res = vasprintf(__s, __format, __va);
va_end(__va);
return __res;
}
inline int __libcpp_sscanf_l(const char* __s, locale_t __l,
const char* __format, ...) {
va_list __va;
va_start(__va, __format);
__libcpp_locale_guard __current(__l);
int __res = vsscanf(__s, __format, __va);
va_end(__va);
return __res;
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_BSD_LOCALE_FALLBACKS_DEFAULTS_H

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// -*- C++ -*-
//===--------------------------- __debug ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_DEBUG_H
#define _LIBCPP_DEBUG_H
#include "third_party/libcxx/__config"
#include "third_party/libcxx/iosfwd"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#if defined(_LIBCPP_HAS_NO_NULLPTR)
# include "third_party/libcxx/cstddef"
#endif
#if _LIBCPP_DEBUG_LEVEL >= 1 || defined(_LIBCPP_BUILDING_LIBRARY)
# include "third_party/libcxx/cstdlib"
# include "third_party/libcxx/cstdio"
# include "third_party/libcxx/cstddef"
#endif
#if _LIBCPP_DEBUG_LEVEL >= 1 && !defined(_LIBCPP_ASSERT)
# define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : \
_VSTD::__libcpp_debug_function(_VSTD::__libcpp_debug_info(__FILE__, __LINE__, #x, m)))
#endif
#if _LIBCPP_DEBUG_LEVEL >= 2
#ifndef _LIBCPP_DEBUG_ASSERT
#define _LIBCPP_DEBUG_ASSERT(x, m) _LIBCPP_ASSERT(x, m)
#endif
#define _LIBCPP_DEBUG_MODE(...) __VA_ARGS__
#endif
#ifndef _LIBCPP_ASSERT
# define _LIBCPP_ASSERT(x, m) ((void)0)
#endif
#ifndef _LIBCPP_DEBUG_ASSERT
# define _LIBCPP_DEBUG_ASSERT(x, m) ((void)0)
#endif
#ifndef _LIBCPP_DEBUG_MODE
#define _LIBCPP_DEBUG_MODE(...) ((void)0)
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
struct _LIBCPP_TEMPLATE_VIS __libcpp_debug_info {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
__libcpp_debug_info()
: __file_(nullptr), __line_(-1), __pred_(nullptr), __msg_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
__libcpp_debug_info(const char* __f, int __l, const char* __p, const char* __m)
: __file_(__f), __line_(__l), __pred_(__p), __msg_(__m) {}
_LIBCPP_FUNC_VIS std::string what() const;
const char* __file_;
int __line_;
const char* __pred_;
const char* __msg_;
};
/// __libcpp_debug_function_type - The type of the assertion failure handler.
typedef void(*__libcpp_debug_function_type)(__libcpp_debug_info const&);
/// __libcpp_debug_function - The handler function called when a _LIBCPP_ASSERT
/// fails.
extern _LIBCPP_EXPORTED_FROM_ABI __libcpp_debug_function_type __libcpp_debug_function;
/// __libcpp_abort_debug_function - A debug handler that aborts when called.
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS
void __libcpp_abort_debug_function(__libcpp_debug_info const&);
/// __libcpp_set_debug_function - Set the debug handler to the specified
/// function.
_LIBCPP_FUNC_VIS
bool __libcpp_set_debug_function(__libcpp_debug_function_type __func);
#if _LIBCPP_DEBUG_LEVEL >= 2 || defined(_LIBCPP_BUILDING_LIBRARY)
struct _LIBCPP_TYPE_VIS __c_node;
struct _LIBCPP_TYPE_VIS __i_node
{
void* __i_;
__i_node* __next_;
__c_node* __c_;
#ifndef _LIBCPP_CXX03_LANG
__i_node(const __i_node&) = delete;
__i_node& operator=(const __i_node&) = delete;
#else
private:
__i_node(const __i_node&);
__i_node& operator=(const __i_node&);
public:
#endif
_LIBCPP_INLINE_VISIBILITY
__i_node(void* __i, __i_node* __next, __c_node* __c)
: __i_(__i), __next_(__next), __c_(__c) {}
~__i_node();
};
struct _LIBCPP_TYPE_VIS __c_node
{
void* __c_;
__c_node* __next_;
__i_node** beg_;
__i_node** end_;
__i_node** cap_;
#ifndef _LIBCPP_CXX03_LANG
__c_node(const __c_node&) = delete;
__c_node& operator=(const __c_node&) = delete;
#else
private:
__c_node(const __c_node&);
__c_node& operator=(const __c_node&);
public:
#endif
_LIBCPP_INLINE_VISIBILITY
__c_node(void* __c, __c_node* __next)
: __c_(__c), __next_(__next), beg_(nullptr), end_(nullptr), cap_(nullptr) {}
virtual ~__c_node();
virtual bool __dereferenceable(const void*) const = 0;
virtual bool __decrementable(const void*) const = 0;
virtual bool __addable(const void*, ptrdiff_t) const = 0;
virtual bool __subscriptable(const void*, ptrdiff_t) const = 0;
void __add(__i_node* __i);
_LIBCPP_HIDDEN void __remove(__i_node* __i);
};
template <class _Cont>
struct _C_node
: public __c_node
{
_C_node(void* __c, __c_node* __n)
: __c_node(__c, __n) {}
virtual bool __dereferenceable(const void*) const;
virtual bool __decrementable(const void*) const;
virtual bool __addable(const void*, ptrdiff_t) const;
virtual bool __subscriptable(const void*, ptrdiff_t) const;
};
template <class _Cont>
inline bool
_C_node<_Cont>::__dereferenceable(const void* __i) const
{
typedef typename _Cont::const_iterator iterator;
const iterator* __j = static_cast<const iterator*>(__i);
_Cont* _Cp = static_cast<_Cont*>(__c_);
return _Cp->__dereferenceable(__j);
}
template <class _Cont>
inline bool
_C_node<_Cont>::__decrementable(const void* __i) const
{
typedef typename _Cont::const_iterator iterator;
const iterator* __j = static_cast<const iterator*>(__i);
_Cont* _Cp = static_cast<_Cont*>(__c_);
return _Cp->__decrementable(__j);
}
template <class _Cont>
inline bool
_C_node<_Cont>::__addable(const void* __i, ptrdiff_t __n) const
{
typedef typename _Cont::const_iterator iterator;
const iterator* __j = static_cast<const iterator*>(__i);
_Cont* _Cp = static_cast<_Cont*>(__c_);
return _Cp->__addable(__j, __n);
}
template <class _Cont>
inline bool
_C_node<_Cont>::__subscriptable(const void* __i, ptrdiff_t __n) const
{
typedef typename _Cont::const_iterator iterator;
const iterator* __j = static_cast<const iterator*>(__i);
_Cont* _Cp = static_cast<_Cont*>(__c_);
return _Cp->__subscriptable(__j, __n);
}
class _LIBCPP_TYPE_VIS __libcpp_db
{
__c_node** __cbeg_;
__c_node** __cend_;
size_t __csz_;
__i_node** __ibeg_;
__i_node** __iend_;
size_t __isz_;
__libcpp_db();
public:
#ifndef _LIBCPP_CXX03_LANG
__libcpp_db(const __libcpp_db&) = delete;
__libcpp_db& operator=(const __libcpp_db&) = delete;
#else
private:
__libcpp_db(const __libcpp_db&);
__libcpp_db& operator=(const __libcpp_db&);
public:
#endif
~__libcpp_db();
class __db_c_iterator;
class __db_c_const_iterator;
class __db_i_iterator;
class __db_i_const_iterator;
__db_c_const_iterator __c_end() const;
__db_i_const_iterator __i_end() const;
typedef __c_node*(_InsertConstruct)(void*, void*, __c_node*);
template <class _Cont>
_LIBCPP_INLINE_VISIBILITY static __c_node* __create_C_node(void *__mem, void *__c, __c_node *__next) {
return ::new(__mem) _C_node<_Cont>(__c, __next);
}
template <class _Cont>
_LIBCPP_INLINE_VISIBILITY
void __insert_c(_Cont* __c)
{
__insert_c(static_cast<void*>(__c), &__create_C_node<_Cont>);
}
void __insert_i(void* __i);
void __insert_c(void* __c, _InsertConstruct* __fn);
void __erase_c(void* __c);
void __insert_ic(void* __i, const void* __c);
void __iterator_copy(void* __i, const void* __i0);
void __erase_i(void* __i);
void* __find_c_from_i(void* __i) const;
void __invalidate_all(void* __c);
__c_node* __find_c_and_lock(void* __c) const;
__c_node* __find_c(void* __c) const;
void unlock() const;
void swap(void* __c1, void* __c2);
bool __dereferenceable(const void* __i) const;
bool __decrementable(const void* __i) const;
bool __addable(const void* __i, ptrdiff_t __n) const;
bool __subscriptable(const void* __i, ptrdiff_t __n) const;
bool __less_than_comparable(const void* __i, const void* __j) const;
private:
_LIBCPP_HIDDEN
__i_node* __insert_iterator(void* __i);
_LIBCPP_HIDDEN
__i_node* __find_iterator(const void* __i) const;
friend _LIBCPP_FUNC_VIS __libcpp_db* __get_db();
};
_LIBCPP_FUNC_VIS __libcpp_db* __get_db();
_LIBCPP_FUNC_VIS const __libcpp_db* __get_const_db();
#endif // _LIBCPP_DEBUG_LEVEL >= 2 || defined(_LIBCPP_BUILDING_LIBRARY)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_DEBUG_H

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third_party/libcxx/__errc vendored Normal file
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// -*- C++ -*-
//===---------------------------- __errc ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ERRC
#define _LIBCPP___ERRC
/*
system_error synopsis
namespace std
{
enum class errc
{
address_family_not_supported, // EAFNOSUPPORT
address_in_use, // EADDRINUSE
address_not_available, // EADDRNOTAVAIL
already_connected, // EISCONN
argument_list_too_long, // E2BIG
argument_out_of_domain, // EDOM
bad_address, // EFAULT
bad_file_descriptor, // EBADF
bad_message, // EBADMSG
broken_pipe, // EPIPE
connection_aborted, // ECONNABORTED
connection_already_in_progress, // EALREADY
connection_refused, // ECONNREFUSED
connection_reset, // ECONNRESET
cross_device_link, // EXDEV
destination_address_required, // EDESTADDRREQ
device_or_resource_busy, // EBUSY
directory_not_empty, // ENOTEMPTY
executable_format_error, // ENOEXEC
file_exists, // EEXIST
file_too_large, // EFBIG
filename_too_long, // ENAMETOOLONG
function_not_supported, // ENOSYS
host_unreachable, // EHOSTUNREACH
identifier_removed, // EIDRM
illegal_byte_sequence, // EILSEQ
inappropriate_io_control_operation, // ENOTTY
interrupted, // EINTR
invalid_argument, // EINVAL
invalid_seek, // ESPIPE
io_error, // EIO
is_a_directory, // EISDIR
message_size, // EMSGSIZE
network_down, // ENETDOWN
network_reset, // ENETRESET
network_unreachable, // ENETUNREACH
no_buffer_space, // ENOBUFS
no_child_process, // ECHILD
no_link, // ENOLINK
no_lock_available, // ENOLCK
no_message_available, // ENODATA
no_message, // ENOMSG
no_protocol_option, // ENOPROTOOPT
no_space_on_device, // ENOSPC
no_stream_resources, // ENOSR
no_such_device_or_address, // ENXIO
no_such_device, // ENODEV
no_such_file_or_directory, // ENOENT
no_such_process, // ESRCH
not_a_directory, // ENOTDIR
not_a_socket, // ENOTSOCK
not_a_stream, // ENOSTR
not_connected, // ENOTCONN
not_enough_memory, // ENOMEM
not_supported, // ENOTSUP
operation_canceled, // ECANCELED
operation_in_progress, // EINPROGRESS
operation_not_permitted, // EPERM
operation_not_supported, // EOPNOTSUPP
operation_would_block, // EWOULDBLOCK
owner_dead, // EOWNERDEAD
permission_denied, // EACCES
protocol_error, // EPROTO
protocol_not_supported, // EPROTONOSUPPORT
read_only_file_system, // EROFS
resource_deadlock_would_occur, // EDEADLK
resource_unavailable_try_again, // EAGAIN
result_out_of_range, // ERANGE
state_not_recoverable, // ENOTRECOVERABLE
stream_timeout, // ETIME
text_file_busy, // ETXTBSY
timed_out, // ETIMEDOUT
too_many_files_open_in_system, // ENFILE
too_many_files_open, // EMFILE
too_many_links, // EMLINK
too_many_symbolic_link_levels, // ELOOP
value_too_large, // EOVERFLOW
wrong_protocol_type // EPROTOTYPE
};
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cerrno"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// Some error codes are not present on all platforms, so we provide equivalents
// for them:
//enum class errc
_LIBCPP_DECLARE_STRONG_ENUM(errc)
{
address_family_not_supported,
address_in_use,
address_not_available,
already_connected,
argument_list_too_long,
argument_out_of_domain,
bad_address,
bad_file_descriptor,
bad_message,
broken_pipe,
connection_aborted,
connection_already_in_progress,
connection_refused,
connection_reset,
cross_device_link,
destination_address_required,
device_or_resource_busy,
directory_not_empty,
executable_format_error,
file_exists,
file_too_large,
filename_too_long,
function_not_supported,
host_unreachable,
identifier_removed,
illegal_byte_sequence,
inappropriate_io_control_operation,
interrupted,
invalid_argument,
invalid_seek,
io_error,
is_a_directory,
message_size,
network_down,
network_reset,
network_unreachable,
no_buffer_space,
no_child_process,
no_link,
no_lock_available,
#ifdef ENODATA
no_message_available,
#else
no_message_available,
#endif
no_message,
no_protocol_option,
no_space_on_device,
#ifdef ENOSR
no_stream_resources,
#else
no_stream_resources,
#endif
no_such_device_or_address,
no_such_device,
no_such_file_or_directory,
no_such_process,
not_a_directory,
not_a_socket,
#ifdef ENOSTR
not_a_stream,
#else
not_a_stream,
#endif
not_connected,
not_enough_memory,
not_supported,
operation_canceled,
operation_in_progress,
operation_not_permitted,
operation_not_supported,
operation_would_block,
owner_dead,
permission_denied,
protocol_error,
protocol_not_supported,
read_only_file_system,
resource_deadlock_would_occur,
resource_unavailable_try_again,
result_out_of_range,
state_not_recoverable,
#ifdef ETIME
stream_timeout,
#else
stream_timeout,
#endif
text_file_busy,
timed_out,
too_many_files_open_in_system,
too_many_files_open,
too_many_links,
too_many_symbolic_link_levels,
value_too_large,
wrong_protocol_type
};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(errc)
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ERRC

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_FUNCTIONAL_BASE
#define _LIBCPP_FUNCTIONAL_BASE
#include "third_party/libcxx/__config"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/typeinfo"
#include "third_party/libcxx/exception"
#include "third_party/libcxx/new"
#include "third_party/libcxx/utility"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Arg1, class _Arg2, class _Result>
struct _LIBCPP_TEMPLATE_VIS binary_function
{
typedef _Arg1 first_argument_type;
typedef _Arg2 second_argument_type;
typedef _Result result_type;
};
template <class _Tp>
struct __has_result_type
{
private:
struct __two {char __lx; char __lxx;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::result_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
#if _LIBCPP_STD_VER > 11
template <class _Tp = void>
#else
template <class _Tp>
#endif
struct _LIBCPP_TEMPLATE_VIS less : binary_function<_Tp, _Tp, bool>
{
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator()(const _Tp& __x, const _Tp& __y) const
{return __x < __y;}
};
#if _LIBCPP_STD_VER > 11
template <>
struct _LIBCPP_TEMPLATE_VIS less<void>
{
template <class _T1, class _T2>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
auto operator()(_T1&& __t, _T2&& __u) const
_NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) < _VSTD::forward<_T2>(__u)))
-> decltype (_VSTD::forward<_T1>(__t) < _VSTD::forward<_T2>(__u))
{ return _VSTD::forward<_T1>(__t) < _VSTD::forward<_T2>(__u); }
typedef void is_transparent;
};
#endif
// __weak_result_type
template <class _Tp>
struct __derives_from_unary_function
{
private:
struct __two {char __lx; char __lxx;};
static __two __test(...);
template <class _Ap, class _Rp>
static unary_function<_Ap, _Rp>
__test(const volatile unary_function<_Ap, _Rp>*);
public:
static const bool value = !is_same<decltype(__test((_Tp*)0)), __two>::value;
typedef decltype(__test((_Tp*)0)) type;
};
template <class _Tp>
struct __derives_from_binary_function
{
private:
struct __two {char __lx; char __lxx;};
static __two __test(...);
template <class _A1, class _A2, class _Rp>
static binary_function<_A1, _A2, _Rp>
__test(const volatile binary_function<_A1, _A2, _Rp>*);
public:
static const bool value = !is_same<decltype(__test((_Tp*)0)), __two>::value;
typedef decltype(__test((_Tp*)0)) type;
};
template <class _Tp, bool = __derives_from_unary_function<_Tp>::value>
struct __maybe_derive_from_unary_function // bool is true
: public __derives_from_unary_function<_Tp>::type
{
};
template <class _Tp>
struct __maybe_derive_from_unary_function<_Tp, false>
{
};
template <class _Tp, bool = __derives_from_binary_function<_Tp>::value>
struct __maybe_derive_from_binary_function // bool is true
: public __derives_from_binary_function<_Tp>::type
{
};
template <class _Tp>
struct __maybe_derive_from_binary_function<_Tp, false>
{
};
template <class _Tp, bool = __has_result_type<_Tp>::value>
struct __weak_result_type_imp // bool is true
: public __maybe_derive_from_unary_function<_Tp>,
public __maybe_derive_from_binary_function<_Tp>
{
typedef _LIBCPP_NODEBUG_TYPE typename _Tp::result_type result_type;
};
template <class _Tp>
struct __weak_result_type_imp<_Tp, false>
: public __maybe_derive_from_unary_function<_Tp>,
public __maybe_derive_from_binary_function<_Tp>
{
};
template <class _Tp>
struct __weak_result_type
: public __weak_result_type_imp<_Tp>
{
};
// 0 argument case
template <class _Rp>
struct __weak_result_type<_Rp ()>
{
typedef _LIBCPP_NODEBUG_TYPE _Rp result_type;
};
template <class _Rp>
struct __weak_result_type<_Rp (&)()>
{
typedef _LIBCPP_NODEBUG_TYPE _Rp result_type;
};
template <class _Rp>
struct __weak_result_type<_Rp (*)()>
{
typedef _LIBCPP_NODEBUG_TYPE _Rp result_type;
};
// 1 argument case
template <class _Rp, class _A1>
struct __weak_result_type<_Rp (_A1)>
: public unary_function<_A1, _Rp>
{
};
template <class _Rp, class _A1>
struct __weak_result_type<_Rp (&)(_A1)>
: public unary_function<_A1, _Rp>
{
};
template <class _Rp, class _A1>
struct __weak_result_type<_Rp (*)(_A1)>
: public unary_function<_A1, _Rp>
{
};
template <class _Rp, class _Cp>
struct __weak_result_type<_Rp (_Cp::*)()>
: public unary_function<_Cp*, _Rp>
{
};
template <class _Rp, class _Cp>
struct __weak_result_type<_Rp (_Cp::*)() const>
: public unary_function<const _Cp*, _Rp>
{
};
template <class _Rp, class _Cp>
struct __weak_result_type<_Rp (_Cp::*)() volatile>
: public unary_function<volatile _Cp*, _Rp>
{
};
template <class _Rp, class _Cp>
struct __weak_result_type<_Rp (_Cp::*)() const volatile>
: public unary_function<const volatile _Cp*, _Rp>
{
};
// 2 argument case
template <class _Rp, class _A1, class _A2>
struct __weak_result_type<_Rp (_A1, _A2)>
: public binary_function<_A1, _A2, _Rp>
{
};
template <class _Rp, class _A1, class _A2>
struct __weak_result_type<_Rp (*)(_A1, _A2)>
: public binary_function<_A1, _A2, _Rp>
{
};
template <class _Rp, class _A1, class _A2>
struct __weak_result_type<_Rp (&)(_A1, _A2)>
: public binary_function<_A1, _A2, _Rp>
{
};
template <class _Rp, class _Cp, class _A1>
struct __weak_result_type<_Rp (_Cp::*)(_A1)>
: public binary_function<_Cp*, _A1, _Rp>
{
};
template <class _Rp, class _Cp, class _A1>
struct __weak_result_type<_Rp (_Cp::*)(_A1) const>
: public binary_function<const _Cp*, _A1, _Rp>
{
};
template <class _Rp, class _Cp, class _A1>
struct __weak_result_type<_Rp (_Cp::*)(_A1) volatile>
: public binary_function<volatile _Cp*, _A1, _Rp>
{
};
template <class _Rp, class _Cp, class _A1>
struct __weak_result_type<_Rp (_Cp::*)(_A1) const volatile>
: public binary_function<const volatile _Cp*, _A1, _Rp>
{
};
#ifndef _LIBCPP_CXX03_LANG
// 3 or more arguments
template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
struct __weak_result_type<_Rp (_A1, _A2, _A3, _A4...)>
{
typedef _Rp result_type;
};
template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
struct __weak_result_type<_Rp (&)(_A1, _A2, _A3, _A4...)>
{
typedef _Rp result_type;
};
template <class _Rp, class _A1, class _A2, class _A3, class ..._A4>
struct __weak_result_type<_Rp (*)(_A1, _A2, _A3, _A4...)>
{
typedef _Rp result_type;
};
template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...)>
{
typedef _Rp result_type;
};
template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) const>
{
typedef _Rp result_type;
};
template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) volatile>
{
typedef _Rp result_type;
};
template <class _Rp, class _Cp, class _A1, class _A2, class ..._A3>
struct __weak_result_type<_Rp (_Cp::*)(_A1, _A2, _A3...) const volatile>
{
typedef _Rp result_type;
};
template <class _Tp, class ..._Args>
struct __invoke_return
{
typedef decltype(__invoke(_VSTD::declval<_Tp>(), _VSTD::declval<_Args>()...)) type;
};
#else // defined(_LIBCPP_CXX03_LANG)
#include "third_party/libcxx/__functional_base_03"
#endif // !defined(_LIBCPP_CXX03_LANG)
template <class _Ret>
struct __invoke_void_return_wrapper
{
#ifndef _LIBCPP_CXX03_LANG
template <class ..._Args>
static _Ret __call(_Args&&... __args) {
return __invoke(_VSTD::forward<_Args>(__args)...);
}
#else
template <class _Fn>
static _Ret __call(_Fn __f) {
return __invoke(__f);
}
template <class _Fn, class _A0>
static _Ret __call(_Fn __f, _A0& __a0) {
return __invoke(__f, __a0);
}
template <class _Fn, class _A0, class _A1>
static _Ret __call(_Fn __f, _A0& __a0, _A1& __a1) {
return __invoke(__f, __a0, __a1);
}
template <class _Fn, class _A0, class _A1, class _A2>
static _Ret __call(_Fn __f, _A0& __a0, _A1& __a1, _A2& __a2){
return __invoke(__f, __a0, __a1, __a2);
}
#endif
};
template <>
struct __invoke_void_return_wrapper<void>
{
#ifndef _LIBCPP_CXX03_LANG
template <class ..._Args>
static void __call(_Args&&... __args) {
__invoke(_VSTD::forward<_Args>(__args)...);
}
#else
template <class _Fn>
static void __call(_Fn __f) {
__invoke(__f);
}
template <class _Fn, class _A0>
static void __call(_Fn __f, _A0& __a0) {
__invoke(__f, __a0);
}
template <class _Fn, class _A0, class _A1>
static void __call(_Fn __f, _A0& __a0, _A1& __a1) {
__invoke(__f, __a0, __a1);
}
template <class _Fn, class _A0, class _A1, class _A2>
static void __call(_Fn __f, _A0& __a0, _A1& __a1, _A2& __a2) {
__invoke(__f, __a0, __a1, __a2);
}
#endif
};
template <class _Tp>
class _LIBCPP_TEMPLATE_VIS reference_wrapper
: public __weak_result_type<_Tp>
{
public:
// types
typedef _Tp type;
private:
type* __f_;
public:
// construct/copy/destroy
_LIBCPP_INLINE_VISIBILITY reference_wrapper(type& __f) _NOEXCEPT
: __f_(_VSTD::addressof(__f)) {}
#ifndef _LIBCPP_CXX03_LANG
private: reference_wrapper(type&&); public: // = delete; // do not bind to temps
#endif
// access
_LIBCPP_INLINE_VISIBILITY operator type& () const _NOEXCEPT {return *__f_;}
_LIBCPP_INLINE_VISIBILITY type& get() const _NOEXCEPT {return *__f_;}
#ifndef _LIBCPP_CXX03_LANG
// invoke
template <class... _ArgTypes>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_of<type&, _ArgTypes...>::type
operator() (_ArgTypes&&... __args) const {
return __invoke(get(), _VSTD::forward<_ArgTypes>(__args)...);
}
#else
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return<type>::type
operator() () const {
return __invoke(get());
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return0<type, _A0>::type
operator() (_A0& __a0) const {
return __invoke(get(), __a0);
}
template <class _A0>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return0<type, _A0 const>::type
operator() (_A0 const& __a0) const {
return __invoke(get(), __a0);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return1<type, _A0, _A1>::type
operator() (_A0& __a0, _A1& __a1) const {
return __invoke(get(), __a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return1<type, _A0 const, _A1>::type
operator() (_A0 const& __a0, _A1& __a1) const {
return __invoke(get(), __a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return1<type, _A0, _A1 const>::type
operator() (_A0& __a0, _A1 const& __a1) const {
return __invoke(get(), __a0, __a1);
}
template <class _A0, class _A1>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return1<type, _A0 const, _A1 const>::type
operator() (_A0 const& __a0, _A1 const& __a1) const {
return __invoke(get(), __a0, __a1);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0, _A1, _A2>::type
operator() (_A0& __a0, _A1& __a1, _A2& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0 const, _A1, _A2>::type
operator() (_A0 const& __a0, _A1& __a1, _A2& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0, _A1 const, _A2>::type
operator() (_A0& __a0, _A1 const& __a1, _A2& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0, _A1, _A2 const>::type
operator() (_A0& __a0, _A1& __a1, _A2 const& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0 const, _A1 const, _A2>::type
operator() (_A0 const& __a0, _A1 const& __a1, _A2& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0 const, _A1, _A2 const>::type
operator() (_A0 const& __a0, _A1& __a1, _A2 const& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0, _A1 const, _A2 const>::type
operator() (_A0& __a0, _A1 const& __a1, _A2 const& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
template <class _A0, class _A1, class _A2>
_LIBCPP_INLINE_VISIBILITY
typename __invoke_return2<type, _A0 const, _A1 const, _A2 const>::type
operator() (_A0 const& __a0, _A1 const& __a1, _A2 const& __a2) const {
return __invoke(get(), __a0, __a1, __a2);
}
#endif // _LIBCPP_CXX03_LANG
};
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
reference_wrapper<_Tp>
ref(_Tp& __t) _NOEXCEPT
{
return reference_wrapper<_Tp>(__t);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
reference_wrapper<_Tp>
ref(reference_wrapper<_Tp> __t) _NOEXCEPT
{
return ref(__t.get());
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
reference_wrapper<const _Tp>
cref(const _Tp& __t) _NOEXCEPT
{
return reference_wrapper<const _Tp>(__t);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
reference_wrapper<const _Tp>
cref(reference_wrapper<_Tp> __t) _NOEXCEPT
{
return cref(__t.get());
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp> void ref(const _Tp&&) = delete;
template <class _Tp> void cref(const _Tp&&) = delete;
#endif
#if _LIBCPP_STD_VER > 11
template <class _Tp, class, class = void>
struct __is_transparent : false_type {};
template <class _Tp, class _Up>
struct __is_transparent<_Tp, _Up,
typename __void_t<typename _Tp::is_transparent>::type>
: true_type {};
#endif
// allocator_arg_t
struct _LIBCPP_TEMPLATE_VIS allocator_arg_t { explicit allocator_arg_t() = default; };
#if defined(_LIBCPP_CXX03_LANG) || defined(_LIBCPP_BUILDING_LIBRARY)
extern _LIBCPP_EXPORTED_FROM_ABI const allocator_arg_t allocator_arg;
#else
/* _LIBCPP_INLINE_VAR */ constexpr allocator_arg_t allocator_arg = allocator_arg_t();
#endif
// uses_allocator
template <class _Tp>
struct __has_allocator_type
{
private:
struct __two {char __lx; char __lxx;};
template <class _Up> static __two __test(...);
template <class _Up> static char __test(typename _Up::allocator_type* = 0);
public:
static const bool value = sizeof(__test<_Tp>(0)) == 1;
};
template <class _Tp, class _Alloc, bool = __has_allocator_type<_Tp>::value>
struct __uses_allocator
: public integral_constant<bool,
is_convertible<_Alloc, typename _Tp::allocator_type>::value>
{
};
template <class _Tp, class _Alloc>
struct __uses_allocator<_Tp, _Alloc, false>
: public false_type
{
};
template <class _Tp, class _Alloc>
struct _LIBCPP_TEMPLATE_VIS uses_allocator
: public __uses_allocator<_Tp, _Alloc>
{
};
#if _LIBCPP_STD_VER > 14
template <class _Tp, class _Alloc>
_LIBCPP_INLINE_VAR constexpr size_t uses_allocator_v = uses_allocator<_Tp, _Alloc>::value;
#endif
#ifndef _LIBCPP_CXX03_LANG
// allocator construction
template <class _Tp, class _Alloc, class ..._Args>
struct __uses_alloc_ctor_imp
{
typedef _LIBCPP_NODEBUG_TYPE typename __uncvref<_Alloc>::type _RawAlloc;
static const bool __ua = uses_allocator<_Tp, _RawAlloc>::value;
static const bool __ic =
is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
static const int value = __ua ? 2 - __ic : 0;
};
template <class _Tp, class _Alloc, class ..._Args>
struct __uses_alloc_ctor
: integral_constant<int, __uses_alloc_ctor_imp<_Tp, _Alloc, _Args...>::value>
{};
template <class _Tp, class _Allocator, class... _Args>
inline _LIBCPP_INLINE_VISIBILITY
void __user_alloc_construct_impl (integral_constant<int, 0>, _Tp *__storage, const _Allocator &, _Args &&... __args )
{
new (__storage) _Tp (_VSTD::forward<_Args>(__args)...);
}
// FIXME: This should have a version which takes a non-const alloc.
template <class _Tp, class _Allocator, class... _Args>
inline _LIBCPP_INLINE_VISIBILITY
void __user_alloc_construct_impl (integral_constant<int, 1>, _Tp *__storage, const _Allocator &__a, _Args &&... __args )
{
new (__storage) _Tp (allocator_arg, __a, _VSTD::forward<_Args>(__args)...);
}
// FIXME: This should have a version which takes a non-const alloc.
template <class _Tp, class _Allocator, class... _Args>
inline _LIBCPP_INLINE_VISIBILITY
void __user_alloc_construct_impl (integral_constant<int, 2>, _Tp *__storage, const _Allocator &__a, _Args &&... __args )
{
new (__storage) _Tp (_VSTD::forward<_Args>(__args)..., __a);
}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_FUNCTIONAL_BASE

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_FUNCTIONAL_BASE_03
#define _LIBCPP_FUNCTIONAL_BASE_03
// manual variadic expansion for <functional>
// __invoke
template <class _Ret, class _T1, bool _IsFunc, bool _IsBase>
struct __enable_invoke_imp;
template <class _Ret, class _T1>
struct __enable_invoke_imp<_Ret, _T1, true, true> {
typedef _Ret _Bullet1;
typedef _Bullet1 type;
};
template <class _Ret, class _T1>
struct __enable_invoke_imp<_Ret, _T1, true, false> {
typedef _Ret _Bullet2;
typedef _Bullet2 type;
};
template <class _Ret, class _T1>
struct __enable_invoke_imp<_Ret, _T1, false, true> {
typedef typename add_lvalue_reference<
typename __apply_cv<_T1, _Ret>::type
>::type _Bullet3;
typedef _Bullet3 type;
};
template <class _Ret, class _T1>
struct __enable_invoke_imp<_Ret, _T1, false, false> {
typedef typename add_lvalue_reference<
typename __apply_cv<decltype(*_VSTD::declval<_T1>()), _Ret>::type
>::type _Bullet4;
typedef _Bullet4 type;
};
template <class _Ret, class _T1>
struct __enable_invoke_imp<_Ret, _T1*, false, false> {
typedef typename add_lvalue_reference<
typename __apply_cv<_T1, _Ret>::type
>::type _Bullet4;
typedef _Bullet4 type;
};
template <class _Fn, class _T1,
class _Traits = __member_pointer_traits<_Fn>,
class _Ret = typename _Traits::_ReturnType,
class _Class = typename _Traits::_ClassType>
struct __enable_invoke : __enable_invoke_imp<
_Ret, _T1,
is_member_function_pointer<_Fn>::value,
is_base_of<_Class, typename remove_reference<_T1>::type>::value>
{
};
__nat __invoke(__any, ...);
// first bullet
template <class _Fn, class _T1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet1
__invoke(_Fn __f, _T1& __t1) {
return (__t1.*__f)();
}
template <class _Fn, class _T1, class _A0>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet1
__invoke(_Fn __f, _T1& __t1, _A0& __a0) {
return (__t1.*__f)(__a0);
}
template <class _Fn, class _T1, class _A0, class _A1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet1
__invoke(_Fn __f, _T1& __t1, _A0& __a0, _A1& __a1) {
return (__t1.*__f)(__a0, __a1);
}
template <class _Fn, class _T1, class _A0, class _A1, class _A2>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet1
__invoke(_Fn __f, _T1& __t1, _A0& __a0, _A1& __a1, _A2& __a2) {
return (__t1.*__f)(__a0, __a1, __a2);
}
template <class _Fn, class _T1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet2
__invoke(_Fn __f, _T1& __t1) {
return ((*__t1).*__f)();
}
template <class _Fn, class _T1, class _A0>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet2
__invoke(_Fn __f, _T1& __t1, _A0& __a0) {
return ((*__t1).*__f)(__a0);
}
template <class _Fn, class _T1, class _A0, class _A1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet2
__invoke(_Fn __f, _T1& __t1, _A0& __a0, _A1& __a1) {
return ((*__t1).*__f)(__a0, __a1);
}
template <class _Fn, class _T1, class _A0, class _A1, class _A2>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet2
__invoke(_Fn __f, _T1& __t1, _A0& __a0, _A1& __a1, _A2& __a2) {
return ((*__t1).*__f)(__a0, __a1, __a2);
}
template <class _Fn, class _T1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet3
__invoke(_Fn __f, _T1& __t1) {
return __t1.*__f;
}
template <class _Fn, class _T1>
inline _LIBCPP_INLINE_VISIBILITY
typename __enable_invoke<_Fn, _T1>::_Bullet4
__invoke(_Fn __f, _T1& __t1) {
return (*__t1).*__f;
}
// fifth bullet
template <class _Fp>
inline _LIBCPP_INLINE_VISIBILITY
decltype(_VSTD::declval<_Fp&>()())
__invoke(_Fp& __f)
{
return __f();
}
template <class _Fp, class _A0>
inline _LIBCPP_INLINE_VISIBILITY
decltype(_VSTD::declval<_Fp&>()(_VSTD::declval<_A0&>()))
__invoke(_Fp& __f, _A0& __a0)
{
return __f(__a0);
}
template <class _Fp, class _A0, class _A1>
inline _LIBCPP_INLINE_VISIBILITY
decltype(_VSTD::declval<_Fp&>()(_VSTD::declval<_A0&>(), _VSTD::declval<_A1&>()))
__invoke(_Fp& __f, _A0& __a0, _A1& __a1)
{
return __f(__a0, __a1);
}
template <class _Fp, class _A0, class _A1, class _A2>
inline _LIBCPP_INLINE_VISIBILITY
decltype(_VSTD::declval<_Fp&>()(_VSTD::declval<_A0&>(), _VSTD::declval<_A1&>(), _VSTD::declval<_A2&>()))
__invoke(_Fp& __f, _A0& __a0, _A1& __a1, _A2& __a2)
{
return __f(__a0, __a1, __a2);
}
template <class _Fp, bool = __has_result_type<__weak_result_type<_Fp> >::value>
struct __invoke_return
{
typedef typename __weak_result_type<_Fp>::result_type type;
};
template <class _Fp>
struct __invoke_return<_Fp, false>
{
typedef decltype(__invoke(_VSTD::declval<_Fp&>())) type;
};
template <class _Tp, class _A0>
struct __invoke_return0
{
typedef decltype(__invoke(_VSTD::declval<_Tp&>(), _VSTD::declval<_A0&>())) type;
};
template <class _Rp, class _Tp, class _A0>
struct __invoke_return0<_Rp _Tp::*, _A0>
{
typedef typename __enable_invoke<_Rp _Tp::*, _A0>::type type;
};
template <class _Tp, class _A0, class _A1>
struct __invoke_return1
{
typedef decltype(__invoke(_VSTD::declval<_Tp&>(), _VSTD::declval<_A0&>(),
_VSTD::declval<_A1&>())) type;
};
template <class _Rp, class _Class, class _A0, class _A1>
struct __invoke_return1<_Rp _Class::*, _A0, _A1> {
typedef typename __enable_invoke<_Rp _Class::*, _A0>::type type;
};
template <class _Tp, class _A0, class _A1, class _A2>
struct __invoke_return2
{
typedef decltype(__invoke(_VSTD::declval<_Tp&>(), _VSTD::declval<_A0&>(),
_VSTD::declval<_A1&>(),
_VSTD::declval<_A2&>())) type;
};
template <class _Ret, class _Class, class _A0, class _A1, class _A2>
struct __invoke_return2<_Ret _Class::*, _A0, _A1, _A2> {
typedef typename __enable_invoke<_Ret _Class::*, _A0>::type type;
};
#endif // _LIBCPP_FUNCTIONAL_BASE_03

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___MUTEX_BASE
#define _LIBCPP___MUTEX_BASE
#include "third_party/libcxx/__config"
#include "third_party/libcxx/chrono"
#include "third_party/libcxx/system_error"
#include "third_party/libcxx/__threading_support"
#include "libc/isystem/time.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_HAS_NO_THREADS
#ifndef _LIBCPP_THREAD_SAFETY_ANNOTATION
# ifdef _LIBCPP_HAS_THREAD_SAFETY_ANNOTATIONS
# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x) __attribute__((x))
# else
# define _LIBCPP_THREAD_SAFETY_ANNOTATION(x)
# endif
#endif // _LIBCPP_THREAD_SAFETY_ANNOTATION
class _LIBCPP_TYPE_VIS _LIBCPP_THREAD_SAFETY_ANNOTATION(capability("mutex")) mutex
{
__libcpp_mutex_t __m_ = _LIBCPP_MUTEX_INITIALIZER;
public:
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR mutex() = default;
mutex(const mutex&) = delete;
mutex& operator=(const mutex&) = delete;
#if defined(_LIBCPP_HAS_TRIVIAL_MUTEX_DESTRUCTION)
~mutex() = default;
#else
~mutex() _NOEXCEPT;
#endif
void lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(acquire_capability());
bool try_lock() _NOEXCEPT _LIBCPP_THREAD_SAFETY_ANNOTATION(try_acquire_capability(true));
void unlock() _NOEXCEPT _LIBCPP_THREAD_SAFETY_ANNOTATION(release_capability());
typedef __libcpp_mutex_t* native_handle_type;
_LIBCPP_INLINE_VISIBILITY native_handle_type native_handle() {return &__m_;}
};
static_assert(is_nothrow_default_constructible<mutex>::value,
"the default constructor for std::mutex must be nothrow");
struct _LIBCPP_TYPE_VIS defer_lock_t { explicit defer_lock_t() = default; };
struct _LIBCPP_TYPE_VIS try_to_lock_t { explicit try_to_lock_t() = default; };
struct _LIBCPP_TYPE_VIS adopt_lock_t { explicit adopt_lock_t() = default; };
#if defined(_LIBCPP_CXX03_LANG) || defined(_LIBCPP_BUILDING_LIBRARY)
extern _LIBCPP_EXPORTED_FROM_ABI const defer_lock_t defer_lock;
extern _LIBCPP_EXPORTED_FROM_ABI const try_to_lock_t try_to_lock;
extern _LIBCPP_EXPORTED_FROM_ABI const adopt_lock_t adopt_lock;
#else
/* _LIBCPP_INLINE_VAR */ constexpr defer_lock_t defer_lock = defer_lock_t();
/* _LIBCPP_INLINE_VAR */ constexpr try_to_lock_t try_to_lock = try_to_lock_t();
/* _LIBCPP_INLINE_VAR */ constexpr adopt_lock_t adopt_lock = adopt_lock_t();
#endif
template <class _Mutex>
class _LIBCPP_TEMPLATE_VIS _LIBCPP_THREAD_SAFETY_ANNOTATION(scoped_lockable)
lock_guard
{
public:
typedef _Mutex mutex_type;
private:
mutex_type& __m_;
public:
_LIBCPP_NODISCARD_EXT _LIBCPP_INLINE_VISIBILITY
explicit lock_guard(mutex_type& __m) _LIBCPP_THREAD_SAFETY_ANNOTATION(acquire_capability(__m))
: __m_(__m) {__m_.lock();}
_LIBCPP_NODISCARD_EXT _LIBCPP_INLINE_VISIBILITY
lock_guard(mutex_type& __m, adopt_lock_t) _LIBCPP_THREAD_SAFETY_ANNOTATION(requires_capability(__m))
: __m_(__m) {}
_LIBCPP_INLINE_VISIBILITY
~lock_guard() _LIBCPP_THREAD_SAFETY_ANNOTATION(release_capability()) {__m_.unlock();}
private:
lock_guard(lock_guard const&) _LIBCPP_EQUAL_DELETE;
lock_guard& operator=(lock_guard const&) _LIBCPP_EQUAL_DELETE;
};
template <class _Mutex>
class _LIBCPP_TEMPLATE_VIS unique_lock
{
public:
typedef _Mutex mutex_type;
private:
mutex_type* __m_;
bool __owns_;
public:
_LIBCPP_INLINE_VISIBILITY
unique_lock() _NOEXCEPT : __m_(nullptr), __owns_(false) {}
_LIBCPP_INLINE_VISIBILITY
explicit unique_lock(mutex_type& __m)
: __m_(_VSTD::addressof(__m)), __owns_(true) {__m_->lock();}
_LIBCPP_INLINE_VISIBILITY
unique_lock(mutex_type& __m, defer_lock_t) _NOEXCEPT
: __m_(_VSTD::addressof(__m)), __owns_(false) {}
_LIBCPP_INLINE_VISIBILITY
unique_lock(mutex_type& __m, try_to_lock_t)
: __m_(_VSTD::addressof(__m)), __owns_(__m.try_lock()) {}
_LIBCPP_INLINE_VISIBILITY
unique_lock(mutex_type& __m, adopt_lock_t)
: __m_(_VSTD::addressof(__m)), __owns_(true) {}
template <class _Clock, class _Duration>
_LIBCPP_INLINE_VISIBILITY
unique_lock(mutex_type& __m, const chrono::time_point<_Clock, _Duration>& __t)
: __m_(_VSTD::addressof(__m)), __owns_(__m.try_lock_until(__t)) {}
template <class _Rep, class _Period>
_LIBCPP_INLINE_VISIBILITY
unique_lock(mutex_type& __m, const chrono::duration<_Rep, _Period>& __d)
: __m_(_VSTD::addressof(__m)), __owns_(__m.try_lock_for(__d)) {}
_LIBCPP_INLINE_VISIBILITY
~unique_lock()
{
if (__owns_)
__m_->unlock();
}
private:
unique_lock(unique_lock const&); // = delete;
unique_lock& operator=(unique_lock const&); // = delete;
public:
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
unique_lock(unique_lock&& __u) _NOEXCEPT
: __m_(__u.__m_), __owns_(__u.__owns_)
{__u.__m_ = nullptr; __u.__owns_ = false;}
_LIBCPP_INLINE_VISIBILITY
unique_lock& operator=(unique_lock&& __u) _NOEXCEPT
{
if (__owns_)
__m_->unlock();
__m_ = __u.__m_;
__owns_ = __u.__owns_;
__u.__m_ = nullptr;
__u.__owns_ = false;
return *this;
}
#endif // _LIBCPP_CXX03_LANG
void lock();
bool try_lock();
template <class _Rep, class _Period>
bool try_lock_for(const chrono::duration<_Rep, _Period>& __d);
template <class _Clock, class _Duration>
bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __t);
void unlock();
_LIBCPP_INLINE_VISIBILITY
void swap(unique_lock& __u) _NOEXCEPT
{
_VSTD::swap(__m_, __u.__m_);
_VSTD::swap(__owns_, __u.__owns_);
}
_LIBCPP_INLINE_VISIBILITY
mutex_type* release() _NOEXCEPT
{
mutex_type* __m = __m_;
__m_ = nullptr;
__owns_ = false;
return __m;
}
_LIBCPP_INLINE_VISIBILITY
bool owns_lock() const _NOEXCEPT {return __owns_;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_EXPLICIT
operator bool () const _NOEXCEPT {return __owns_;}
_LIBCPP_INLINE_VISIBILITY
mutex_type* mutex() const _NOEXCEPT {return __m_;}
};
template <class _Mutex>
void
unique_lock<_Mutex>::lock()
{
if (__m_ == nullptr)
__throw_system_error(EPERM, "unique_lock::lock: references null mutex");
if (__owns_)
__throw_system_error(EDEADLK, "unique_lock::lock: already locked");
__m_->lock();
__owns_ = true;
}
template <class _Mutex>
bool
unique_lock<_Mutex>::try_lock()
{
if (__m_ == nullptr)
__throw_system_error(EPERM, "unique_lock::try_lock: references null mutex");
if (__owns_)
__throw_system_error(EDEADLK, "unique_lock::try_lock: already locked");
__owns_ = __m_->try_lock();
return __owns_;
}
template <class _Mutex>
template <class _Rep, class _Period>
bool
unique_lock<_Mutex>::try_lock_for(const chrono::duration<_Rep, _Period>& __d)
{
if (__m_ == nullptr)
__throw_system_error(EPERM, "unique_lock::try_lock_for: references null mutex");
if (__owns_)
__throw_system_error(EDEADLK, "unique_lock::try_lock_for: already locked");
__owns_ = __m_->try_lock_for(__d);
return __owns_;
}
template <class _Mutex>
template <class _Clock, class _Duration>
bool
unique_lock<_Mutex>::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t)
{
if (__m_ == nullptr)
__throw_system_error(EPERM, "unique_lock::try_lock_until: references null mutex");
if (__owns_)
__throw_system_error(EDEADLK, "unique_lock::try_lock_until: already locked");
__owns_ = __m_->try_lock_until(__t);
return __owns_;
}
template <class _Mutex>
void
unique_lock<_Mutex>::unlock()
{
if (!__owns_)
__throw_system_error(EPERM, "unique_lock::unlock: not locked");
__m_->unlock();
__owns_ = false;
}
template <class _Mutex>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(unique_lock<_Mutex>& __x, unique_lock<_Mutex>& __y) _NOEXCEPT
{__x.swap(__y);}
//enum class cv_status
_LIBCPP_DECLARE_STRONG_ENUM(cv_status)
{
no_timeout,
timeout
};
_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(cv_status)
class _LIBCPP_TYPE_VIS condition_variable
{
__libcpp_condvar_t __cv_ = _LIBCPP_CONDVAR_INITIALIZER;
public:
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR condition_variable() _NOEXCEPT = default;
#ifdef _LIBCPP_HAS_TRIVIAL_CONDVAR_DESTRUCTION
~condition_variable() = default;
#else
~condition_variable();
#endif
condition_variable(const condition_variable&) = delete;
condition_variable& operator=(const condition_variable&) = delete;
void notify_one() _NOEXCEPT;
void notify_all() _NOEXCEPT;
void wait(unique_lock<mutex>& __lk) _NOEXCEPT;
template <class _Predicate>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
void wait(unique_lock<mutex>& __lk, _Predicate __pred);
template <class _Clock, class _Duration>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
cv_status
wait_until(unique_lock<mutex>& __lk,
const chrono::time_point<_Clock, _Duration>& __t);
template <class _Clock, class _Duration, class _Predicate>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
bool
wait_until(unique_lock<mutex>& __lk,
const chrono::time_point<_Clock, _Duration>& __t,
_Predicate __pred);
template <class _Rep, class _Period>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
cv_status
wait_for(unique_lock<mutex>& __lk,
const chrono::duration<_Rep, _Period>& __d);
template <class _Rep, class _Period, class _Predicate>
bool
_LIBCPP_INLINE_VISIBILITY
wait_for(unique_lock<mutex>& __lk,
const chrono::duration<_Rep, _Period>& __d,
_Predicate __pred);
typedef __libcpp_condvar_t* native_handle_type;
_LIBCPP_INLINE_VISIBILITY native_handle_type native_handle() {return &__cv_;}
private:
void __do_timed_wait(unique_lock<mutex>& __lk,
chrono::time_point<chrono::system_clock, chrono::nanoseconds>) _NOEXCEPT;
#if defined(_LIBCPP_HAS_COND_CLOCKWAIT)
void __do_timed_wait(unique_lock<mutex>& __lk,
chrono::time_point<chrono::steady_clock, chrono::nanoseconds>) _NOEXCEPT;
#endif
template <class _Clock>
void __do_timed_wait(unique_lock<mutex>& __lk,
chrono::time_point<_Clock, chrono::nanoseconds>) _NOEXCEPT;
};
#endif // !_LIBCPP_HAS_NO_THREADS
template <class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_floating_point<_Rep>::value,
chrono::nanoseconds
>::type
__safe_nanosecond_cast(chrono::duration<_Rep, _Period> __d)
{
using namespace chrono;
using __ratio = ratio_divide<_Period, nano>;
using __ns_rep = nanoseconds::rep;
_Rep __result_float = __d.count() * __ratio::num / __ratio::den;
_Rep __result_max = numeric_limits<__ns_rep>::max();
if (__result_float >= __result_max) {
return nanoseconds::max();
}
_Rep __result_min = numeric_limits<__ns_rep>::min();
if (__result_float <= __result_min) {
return nanoseconds::min();
}
return nanoseconds(static_cast<__ns_rep>(__result_float));
}
template <class _Rep, class _Period>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if
<
!is_floating_point<_Rep>::value,
chrono::nanoseconds
>::type
__safe_nanosecond_cast(chrono::duration<_Rep, _Period> __d)
{
using namespace chrono;
if (__d.count() == 0) {
return nanoseconds(0);
}
using __ratio = ratio_divide<_Period, nano>;
using __ns_rep = nanoseconds::rep;
__ns_rep __result_max = std::numeric_limits<__ns_rep>::max();
if (__d.count() > 0 && __d.count() > __result_max / __ratio::num) {
return nanoseconds::max();
}
__ns_rep __result_min = std::numeric_limits<__ns_rep>::min();
if (__d.count() < 0 && __d.count() < __result_min / __ratio::num) {
return nanoseconds::min();
}
__ns_rep __result = __d.count() * __ratio::num / __ratio::den;
if (__result == 0) {
return nanoseconds(1);
}
return nanoseconds(__result);
}
#ifndef _LIBCPP_HAS_NO_THREADS
template <class _Predicate>
void
condition_variable::wait(unique_lock<mutex>& __lk, _Predicate __pred)
{
while (!__pred())
wait(__lk);
}
template <class _Clock, class _Duration>
cv_status
condition_variable::wait_until(unique_lock<mutex>& __lk,
const chrono::time_point<_Clock, _Duration>& __t)
{
using namespace chrono;
using __clock_tp_ns = time_point<_Clock, nanoseconds>;
typename _Clock::time_point __now = _Clock::now();
if (__t <= __now)
return cv_status::timeout;
__clock_tp_ns __t_ns = __clock_tp_ns(__safe_nanosecond_cast(__t.time_since_epoch()));
__do_timed_wait(__lk, __t_ns);
return _Clock::now() < __t ? cv_status::no_timeout : cv_status::timeout;
}
template <class _Clock, class _Duration, class _Predicate>
bool
condition_variable::wait_until(unique_lock<mutex>& __lk,
const chrono::time_point<_Clock, _Duration>& __t,
_Predicate __pred)
{
while (!__pred())
{
if (wait_until(__lk, __t) == cv_status::timeout)
return __pred();
}
return true;
}
template <class _Rep, class _Period>
cv_status
condition_variable::wait_for(unique_lock<mutex>& __lk,
const chrono::duration<_Rep, _Period>& __d)
{
using namespace chrono;
if (__d <= __d.zero())
return cv_status::timeout;
using __ns_rep = nanoseconds::rep;
steady_clock::time_point __c_now = steady_clock::now();
#if defined(_LIBCPP_HAS_COND_CLOCKWAIT)
using __clock_tp_ns = time_point<steady_clock, nanoseconds>;
__ns_rep __now_count_ns = __safe_nanosecond_cast(__c_now.time_since_epoch()).count();
#else
using __clock_tp_ns = time_point<system_clock, nanoseconds>;
__ns_rep __now_count_ns = __safe_nanosecond_cast(system_clock::now().time_since_epoch()).count();
#endif
__ns_rep __d_ns_count = __safe_nanosecond_cast(__d).count();
if (__now_count_ns > numeric_limits<__ns_rep>::max() - __d_ns_count) {
__do_timed_wait(__lk, __clock_tp_ns::max());
} else {
__do_timed_wait(__lk, __clock_tp_ns(nanoseconds(__now_count_ns + __d_ns_count)));
}
return steady_clock::now() - __c_now < __d ? cv_status::no_timeout :
cv_status::timeout;
}
template <class _Rep, class _Period, class _Predicate>
inline
bool
condition_variable::wait_for(unique_lock<mutex>& __lk,
const chrono::duration<_Rep, _Period>& __d,
_Predicate __pred)
{
return wait_until(__lk, chrono::steady_clock::now() + __d,
_VSTD::move(__pred));
}
#if defined(_LIBCPP_HAS_COND_CLOCKWAIT)
inline
void
condition_variable::__do_timed_wait(unique_lock<mutex>& __lk,
chrono::time_point<chrono::steady_clock, chrono::nanoseconds> __tp) _NOEXCEPT
{
using namespace chrono;
if (!__lk.owns_lock())
__throw_system_error(EPERM,
"condition_variable::timed wait: mutex not locked");
nanoseconds __d = __tp.time_since_epoch();
timespec __ts;
seconds __s = duration_cast<seconds>(__d);
using __ts_sec = decltype(__ts.tv_sec);
const __ts_sec __ts_sec_max = numeric_limits<__ts_sec>::max();
if (__s.count() < __ts_sec_max)
{
__ts.tv_sec = static_cast<__ts_sec>(__s.count());
__ts.tv_nsec = (__d - __s).count();
}
else
{
__ts.tv_sec = __ts_sec_max;
__ts.tv_nsec = giga::num - 1;
}
int __ec = pthread_cond_clockwait(&__cv_, __lk.mutex()->native_handle(), CLOCK_MONOTONIC, &__ts);
if (__ec != 0 && __ec != ETIMEDOUT)
__throw_system_error(__ec, "condition_variable timed_wait failed");
}
#endif // _LIBCPP_HAS_COND_CLOCKWAIT
template <class _Clock>
inline
void
condition_variable::__do_timed_wait(unique_lock<mutex>& __lk,
chrono::time_point<_Clock, chrono::nanoseconds> __tp) _NOEXCEPT
{
wait_for(__lk, __tp - _Clock::now());
}
#endif // !_LIBCPP_HAS_NO_THREADS
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___MUTEX_BASE

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___NODE_HANDLE
#define _LIBCPP___NODE_HANDLE
#include "third_party/libcxx/__config"
#include "third_party/libcxx/memory"
#include "third_party/libcxx/optional"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER > 14
// Specialized in __tree & __hash_table for their _NodeType.
template <class _NodeType, class _Alloc>
struct __generic_container_node_destructor;
template <class _NodeType, class _Alloc,
template <class, class> class _MapOrSetSpecifics>
class _LIBCPP_TEMPLATE_VIS __basic_node_handle
: public _MapOrSetSpecifics<
_NodeType,
__basic_node_handle<_NodeType, _Alloc, _MapOrSetSpecifics>>
{
template <class _Tp, class _Compare, class _Allocator>
friend class __tree;
template <class _Tp, class _Hash, class _Equal, class _Allocator>
friend class __hash_table;
friend struct _MapOrSetSpecifics<
_NodeType, __basic_node_handle<_NodeType, _Alloc, _MapOrSetSpecifics>>;
typedef allocator_traits<_Alloc> __alloc_traits;
typedef typename __rebind_pointer<typename __alloc_traits::void_pointer,
_NodeType>::type
__node_pointer_type;
public:
typedef _Alloc allocator_type;
private:
__node_pointer_type __ptr_ = nullptr;
optional<allocator_type> __alloc_;
_LIBCPP_INLINE_VISIBILITY
void __release_ptr()
{
__ptr_ = nullptr;
__alloc_ = _VSTD::nullopt;
}
_LIBCPP_INLINE_VISIBILITY
void __destroy_node_pointer()
{
if (__ptr_ != nullptr)
{
typedef typename __allocator_traits_rebind<
allocator_type, _NodeType>::type __node_alloc_type;
__node_alloc_type __alloc(*__alloc_);
__generic_container_node_destructor<_NodeType, __node_alloc_type>(
__alloc, true)(__ptr_);
__ptr_ = nullptr;
}
}
_LIBCPP_INLINE_VISIBILITY
__basic_node_handle(__node_pointer_type __ptr,
allocator_type const& __alloc)
: __ptr_(__ptr), __alloc_(__alloc)
{
}
public:
_LIBCPP_INLINE_VISIBILITY
__basic_node_handle() = default;
_LIBCPP_INLINE_VISIBILITY
__basic_node_handle(__basic_node_handle&& __other) noexcept
: __ptr_(__other.__ptr_),
__alloc_(_VSTD::move(__other.__alloc_))
{
__other.__ptr_ = nullptr;
__other.__alloc_ = _VSTD::nullopt;
}
_LIBCPP_INLINE_VISIBILITY
__basic_node_handle& operator=(__basic_node_handle&& __other)
{
_LIBCPP_ASSERT(
__alloc_ == _VSTD::nullopt ||
__alloc_traits::propagate_on_container_move_assignment::value ||
__alloc_ == __other.__alloc_,
"node_type with incompatible allocator passed to "
"node_type::operator=(node_type&&)");
__destroy_node_pointer();
__ptr_ = __other.__ptr_;
if (__alloc_traits::propagate_on_container_move_assignment::value ||
__alloc_ == _VSTD::nullopt)
__alloc_ = _VSTD::move(__other.__alloc_);
__other.__ptr_ = nullptr;
__other.__alloc_ = _VSTD::nullopt;
return *this;
}
_LIBCPP_INLINE_VISIBILITY
allocator_type get_allocator() const { return *__alloc_; }
_LIBCPP_INLINE_VISIBILITY
explicit operator bool() const { return __ptr_ != nullptr; }
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
bool empty() const { return __ptr_ == nullptr; }
_LIBCPP_INLINE_VISIBILITY
void swap(__basic_node_handle& __other) noexcept(
__alloc_traits::propagate_on_container_swap::value ||
__alloc_traits::is_always_equal::value)
{
using _VSTD::swap;
swap(__ptr_, __other.__ptr_);
if (__alloc_traits::propagate_on_container_swap::value ||
__alloc_ == _VSTD::nullopt || __other.__alloc_ == _VSTD::nullopt)
swap(__alloc_, __other.__alloc_);
}
_LIBCPP_INLINE_VISIBILITY
friend void swap(__basic_node_handle& __a, __basic_node_handle& __b)
noexcept(noexcept(__a.swap(__b))) { __a.swap(__b); }
_LIBCPP_INLINE_VISIBILITY
~__basic_node_handle()
{
__destroy_node_pointer();
}
};
template <class _NodeType, class _Derived>
struct __set_node_handle_specifics
{
typedef typename _NodeType::__node_value_type value_type;
_LIBCPP_INLINE_VISIBILITY
value_type& value() const
{
return static_cast<_Derived const*>(this)->__ptr_->__value_;
}
};
template <class _NodeType, class _Derived>
struct __map_node_handle_specifics
{
typedef typename _NodeType::__node_value_type::key_type key_type;
typedef typename _NodeType::__node_value_type::mapped_type mapped_type;
_LIBCPP_INLINE_VISIBILITY
key_type& key() const
{
return static_cast<_Derived const*>(this)->
__ptr_->__value_.__ref().first;
}
_LIBCPP_INLINE_VISIBILITY
mapped_type& mapped() const
{
return static_cast<_Derived const*>(this)->
__ptr_->__value_.__ref().second;
}
};
template <class _NodeType, class _Alloc>
using __set_node_handle =
__basic_node_handle< _NodeType, _Alloc, __set_node_handle_specifics>;
template <class _NodeType, class _Alloc>
using __map_node_handle =
__basic_node_handle< _NodeType, _Alloc, __map_node_handle_specifics>;
template <class _Iterator, class _NodeType>
struct _LIBCPP_TEMPLATE_VIS __insert_return_type
{
_Iterator position;
bool inserted;
_NodeType node;
};
#endif // _LIBCPP_STD_VER > 14
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif

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// -*- C++ -*-
//===--------------------------- __nullptr --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_NULLPTR
#define _LIBCPP_NULLPTR
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#ifdef _LIBCPP_HAS_NO_NULLPTR
_LIBCPP_BEGIN_NAMESPACE_STD
struct _LIBCPP_TEMPLATE_VIS nullptr_t
{
void* __lx;
struct __nat {int __for_bool_;};
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t() : __lx(0) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t(int __nat::*) : __lx(0) {}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR operator int __nat::*() const {return 0;}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
operator _Tp* () const {return 0;}
template <class _Tp, class _Up>
_LIBCPP_INLINE_VISIBILITY
operator _Tp _Up::* () const {return 0;}
friend _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bool operator==(nullptr_t, nullptr_t) {return true;}
friend _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR bool operator!=(nullptr_t, nullptr_t) {return false;}
};
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR nullptr_t __get_nullptr_t() {return nullptr_t(0);}
#define nullptr _VSTD::__get_nullptr_t()
_LIBCPP_END_NAMESPACE_STD
#else // _LIBCPP_HAS_NO_NULLPTR
namespace std
{
typedef decltype(nullptr) nullptr_t;
}
#endif // _LIBCPP_HAS_NO_NULLPTR
#endif // _LIBCPP_NULLPTR

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// -*- C++ -*-
#ifndef _LIBCPP_SPLIT_BUFFER
#define _LIBCPP_SPLIT_BUFFER
#include "third_party/libcxx/__config"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/algorithm"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
template <bool>
class __split_buffer_common
{
protected:
void __throw_length_error() const;
void __throw_out_of_range() const;
};
template <class _Tp, class _Allocator = allocator<_Tp> >
struct __split_buffer
: private __split_buffer_common<true>
{
private:
__split_buffer(const __split_buffer&);
__split_buffer& operator=(const __split_buffer&);
public:
typedef _Tp value_type;
typedef _Allocator allocator_type;
typedef typename remove_reference<allocator_type>::type __alloc_rr;
typedef allocator_traits<__alloc_rr> __alloc_traits;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename __alloc_traits::size_type size_type;
typedef typename __alloc_traits::difference_type difference_type;
typedef typename __alloc_traits::pointer pointer;
typedef typename __alloc_traits::const_pointer const_pointer;
typedef pointer iterator;
typedef const_pointer const_iterator;
pointer __first_;
pointer __begin_;
pointer __end_;
__compressed_pair<pointer, allocator_type> __end_cap_;
typedef typename add_lvalue_reference<allocator_type>::type __alloc_ref;
typedef typename add_lvalue_reference<allocator_type>::type __alloc_const_ref;
_LIBCPP_INLINE_VISIBILITY __alloc_rr& __alloc() _NOEXCEPT {return __end_cap_.second();}
_LIBCPP_INLINE_VISIBILITY const __alloc_rr& __alloc() const _NOEXCEPT {return __end_cap_.second();}
_LIBCPP_INLINE_VISIBILITY pointer& __end_cap() _NOEXCEPT {return __end_cap_.first();}
_LIBCPP_INLINE_VISIBILITY const pointer& __end_cap() const _NOEXCEPT {return __end_cap_.first();}
_LIBCPP_INLINE_VISIBILITY
__split_buffer()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
_LIBCPP_INLINE_VISIBILITY
explicit __split_buffer(__alloc_rr& __a);
_LIBCPP_INLINE_VISIBILITY
explicit __split_buffer(const __alloc_rr& __a);
__split_buffer(size_type __cap, size_type __start, __alloc_rr& __a);
~__split_buffer();
#ifndef _LIBCPP_CXX03_LANG
__split_buffer(__split_buffer&& __c)
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
__split_buffer(__split_buffer&& __c, const __alloc_rr& __a);
__split_buffer& operator=(__split_buffer&& __c)
_NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value &&
is_nothrow_move_assignable<allocator_type>::value) ||
!__alloc_traits::propagate_on_container_move_assignment::value);
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY iterator begin() _NOEXCEPT {return __begin_;}
_LIBCPP_INLINE_VISIBILITY const_iterator begin() const _NOEXCEPT {return __begin_;}
_LIBCPP_INLINE_VISIBILITY iterator end() _NOEXCEPT {return __end_;}
_LIBCPP_INLINE_VISIBILITY const_iterator end() const _NOEXCEPT {return __end_;}
_LIBCPP_INLINE_VISIBILITY
void clear() _NOEXCEPT
{__destruct_at_end(__begin_);}
_LIBCPP_INLINE_VISIBILITY size_type size() const {return static_cast<size_type>(__end_ - __begin_);}
_LIBCPP_INLINE_VISIBILITY bool empty() const {return __end_ == __begin_;}
_LIBCPP_INLINE_VISIBILITY size_type capacity() const {return static_cast<size_type>(__end_cap() - __first_);}
_LIBCPP_INLINE_VISIBILITY size_type __front_spare() const {return static_cast<size_type>(__begin_ - __first_);}
_LIBCPP_INLINE_VISIBILITY size_type __back_spare() const {return static_cast<size_type>(__end_cap() - __end_);}
_LIBCPP_INLINE_VISIBILITY reference front() {return *__begin_;}
_LIBCPP_INLINE_VISIBILITY const_reference front() const {return *__begin_;}
_LIBCPP_INLINE_VISIBILITY reference back() {return *(__end_ - 1);}
_LIBCPP_INLINE_VISIBILITY const_reference back() const {return *(__end_ - 1);}
void reserve(size_type __n);
void shrink_to_fit() _NOEXCEPT;
void push_front(const_reference __x);
_LIBCPP_INLINE_VISIBILITY void push_back(const_reference __x);
#ifndef _LIBCPP_CXX03_LANG
void push_front(value_type&& __x);
void push_back(value_type&& __x);
template <class... _Args>
void emplace_back(_Args&&... __args);
#endif // !defined(_LIBCPP_CXX03_LANG)
_LIBCPP_INLINE_VISIBILITY void pop_front() {__destruct_at_begin(__begin_+1);}
_LIBCPP_INLINE_VISIBILITY void pop_back() {__destruct_at_end(__end_-1);}
void __construct_at_end(size_type __n);
void __construct_at_end(size_type __n, const_reference __x);
template <class _InputIter>
typename enable_if
<
__is_input_iterator<_InputIter>::value &&
!__is_forward_iterator<_InputIter>::value,
void
>::type
__construct_at_end(_InputIter __first, _InputIter __last);
template <class _ForwardIterator>
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value,
void
>::type
__construct_at_end(_ForwardIterator __first, _ForwardIterator __last);
_LIBCPP_INLINE_VISIBILITY void __destruct_at_begin(pointer __new_begin)
{__destruct_at_begin(__new_begin, is_trivially_destructible<value_type>());}
_LIBCPP_INLINE_VISIBILITY
void __destruct_at_begin(pointer __new_begin, false_type);
_LIBCPP_INLINE_VISIBILITY
void __destruct_at_begin(pointer __new_begin, true_type);
_LIBCPP_INLINE_VISIBILITY
void __destruct_at_end(pointer __new_last) _NOEXCEPT
{__destruct_at_end(__new_last, false_type());}
_LIBCPP_INLINE_VISIBILITY
void __destruct_at_end(pointer __new_last, false_type) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
void __destruct_at_end(pointer __new_last, true_type) _NOEXCEPT;
void swap(__split_buffer& __x)
_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value||
__is_nothrow_swappable<__alloc_rr>::value);
bool __invariants() const;
private:
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(__split_buffer& __c, true_type)
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
{
__alloc() = _VSTD::move(__c.__alloc());
}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(__split_buffer&, false_type) _NOEXCEPT
{}
struct _ConstructTransaction {
explicit _ConstructTransaction(pointer* __p, size_type __n) _NOEXCEPT
: __pos_(*__p), __end_(*__p + __n), __dest_(__p) {
}
~_ConstructTransaction() {
*__dest_ = __pos_;
}
pointer __pos_;
const pointer __end_;
private:
pointer *__dest_;
};
};
template <class _Tp, class _Allocator>
bool
__split_buffer<_Tp, _Allocator>::__invariants() const
{
if (__first_ == nullptr)
{
if (__begin_ != nullptr)
return false;
if (__end_ != nullptr)
return false;
if (__end_cap() != nullptr)
return false;
}
else
{
if (__begin_ < __first_)
return false;
if (__end_ < __begin_)
return false;
if (__end_cap() < __end_)
return false;
}
return true;
}
// Default constructs __n objects starting at __end_
// throws if construction throws
// Precondition: __n > 0
// Precondition: size() + __n <= capacity()
// Postcondition: size() == size() + __n
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n)
{
_ConstructTransaction __tx(&this->__end_, __n);
for (; __tx.__pos_ != __tx.__end_; ++__tx.__pos_) {
__alloc_traits::construct(this->__alloc(), _VSTD::__to_raw_pointer(__tx.__pos_));
}
}
// Copy constructs __n objects starting at __end_ from __x
// throws if construction throws
// Precondition: __n > 0
// Precondition: size() + __n <= capacity()
// Postcondition: size() == old size() + __n
// Postcondition: [i] == __x for all i in [size() - __n, __n)
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n, const_reference __x)
{
_ConstructTransaction __tx(&this->__end_, __n);
for (; __tx.__pos_ != __tx.__end_; ++__tx.__pos_) {
__alloc_traits::construct(this->__alloc(),
_VSTD::__to_raw_pointer(__tx.__pos_), __x);
}
}
template <class _Tp, class _Allocator>
template <class _InputIter>
typename enable_if
<
__is_input_iterator<_InputIter>::value &&
!__is_forward_iterator<_InputIter>::value,
void
>::type
__split_buffer<_Tp, _Allocator>::__construct_at_end(_InputIter __first, _InputIter __last)
{
__alloc_rr& __a = this->__alloc();
for (; __first != __last; ++__first)
{
if (__end_ == __end_cap())
{
size_type __old_cap = __end_cap() - __first_;
size_type __new_cap = _VSTD::max<size_type>(2 * __old_cap, 8);
__split_buffer __buf(__new_cap, 0, __a);
for (pointer __p = __begin_; __p != __end_; ++__p, ++__buf.__end_)
__alloc_traits::construct(__buf.__alloc(),
_VSTD::__to_raw_pointer(__buf.__end_), _VSTD::move(*__p));
swap(__buf);
}
__alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_), *__first);
++this->__end_;
}
}
template <class _Tp, class _Allocator>
template <class _ForwardIterator>
typename enable_if
<
__is_forward_iterator<_ForwardIterator>::value,
void
>::type
__split_buffer<_Tp, _Allocator>::__construct_at_end(_ForwardIterator __first, _ForwardIterator __last)
{
_ConstructTransaction __tx(&this->__end_, std::distance(__first, __last));
for (; __tx.__pos_ != __tx.__end_; ++__tx.__pos_, ++__first) {
__alloc_traits::construct(this->__alloc(),
_VSTD::__to_raw_pointer(__tx.__pos_), *__first);
}
}
template <class _Tp, class _Allocator>
inline
void
__split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, false_type)
{
while (__begin_ != __new_begin)
__alloc_traits::destroy(__alloc(), __to_raw_pointer(__begin_++));
}
template <class _Tp, class _Allocator>
inline
void
__split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, true_type)
{
__begin_ = __new_begin;
}
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
__split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, false_type) _NOEXCEPT
{
while (__new_last != __end_)
__alloc_traits::destroy(__alloc(), __to_raw_pointer(--__end_));
}
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
__split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, true_type) _NOEXCEPT
{
__end_ = __new_last;
}
template <class _Tp, class _Allocator>
__split_buffer<_Tp, _Allocator>::__split_buffer(size_type __cap, size_type __start, __alloc_rr& __a)
: __end_cap_(nullptr, __a)
{
__first_ = __cap != 0 ? __alloc_traits::allocate(__alloc(), __cap) : nullptr;
__begin_ = __end_ = __first_ + __start;
__end_cap() = __first_ + __cap;
}
template <class _Tp, class _Allocator>
inline
__split_buffer<_Tp, _Allocator>::__split_buffer()
_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr)
{
}
template <class _Tp, class _Allocator>
inline
__split_buffer<_Tp, _Allocator>::__split_buffer(__alloc_rr& __a)
: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a)
{
}
template <class _Tp, class _Allocator>
inline
__split_buffer<_Tp, _Allocator>::__split_buffer(const __alloc_rr& __a)
: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a)
{
}
template <class _Tp, class _Allocator>
__split_buffer<_Tp, _Allocator>::~__split_buffer()
{
clear();
if (__first_)
__alloc_traits::deallocate(__alloc(), __first_, capacity());
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c)
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value)
: __first_(_VSTD::move(__c.__first_)),
__begin_(_VSTD::move(__c.__begin_)),
__end_(_VSTD::move(__c.__end_)),
__end_cap_(_VSTD::move(__c.__end_cap_))
{
__c.__first_ = nullptr;
__c.__begin_ = nullptr;
__c.__end_ = nullptr;
__c.__end_cap() = nullptr;
}
template <class _Tp, class _Allocator>
__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c, const __alloc_rr& __a)
: __end_cap_(__second_tag(), __a)
{
if (__a == __c.__alloc())
{
__first_ = __c.__first_;
__begin_ = __c.__begin_;
__end_ = __c.__end_;
__end_cap() = __c.__end_cap();
__c.__first_ = nullptr;
__c.__begin_ = nullptr;
__c.__end_ = nullptr;
__c.__end_cap() = nullptr;
}
else
{
size_type __cap = __c.size();
__first_ = __alloc_traits::allocate(__alloc(), __cap);
__begin_ = __end_ = __first_;
__end_cap() = __first_ + __cap;
typedef move_iterator<iterator> _Ip;
__construct_at_end(_Ip(__c.begin()), _Ip(__c.end()));
}
}
template <class _Tp, class _Allocator>
__split_buffer<_Tp, _Allocator>&
__split_buffer<_Tp, _Allocator>::operator=(__split_buffer&& __c)
_NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value &&
is_nothrow_move_assignable<allocator_type>::value) ||
!__alloc_traits::propagate_on_container_move_assignment::value)
{
clear();
shrink_to_fit();
__first_ = __c.__first_;
__begin_ = __c.__begin_;
__end_ = __c.__end_;
__end_cap() = __c.__end_cap();
__move_assign_alloc(__c,
integral_constant<bool,
__alloc_traits::propagate_on_container_move_assignment::value>());
__c.__first_ = __c.__begin_ = __c.__end_ = __c.__end_cap() = nullptr;
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::swap(__split_buffer& __x)
_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value||
__is_nothrow_swappable<__alloc_rr>::value)
{
_VSTD::swap(__first_, __x.__first_);
_VSTD::swap(__begin_, __x.__begin_);
_VSTD::swap(__end_, __x.__end_);
_VSTD::swap(__end_cap(), __x.__end_cap());
__swap_allocator(__alloc(), __x.__alloc());
}
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::reserve(size_type __n)
{
if (__n < capacity())
{
__split_buffer<value_type, __alloc_rr&> __t(__n, 0, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT
{
if (capacity() > size())
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
__split_buffer<value_type, __alloc_rr&> __t(size(), 0, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
__t.__end_ = __t.__begin_ + (__end_ - __begin_);
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
}
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::push_front(const_reference __x)
{
if (__begin_ == __first_)
{
if (__end_ < __end_cap())
{
difference_type __d = __end_cap() - __end_;
__d = (__d + 1) / 2;
__begin_ = _VSTD::move_backward(__begin_, __end_, __end_ + __d);
__end_ += __d;
}
else
{
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
__split_buffer<value_type, __alloc_rr&> __t(__c, (__c + 3) / 4, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1), __x);
--__begin_;
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::push_front(value_type&& __x)
{
if (__begin_ == __first_)
{
if (__end_ < __end_cap())
{
difference_type __d = __end_cap() - __end_;
__d = (__d + 1) / 2;
__begin_ = _VSTD::move_backward(__begin_, __end_, __end_ + __d);
__end_ += __d;
}
else
{
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
__split_buffer<value_type, __alloc_rr&> __t(__c, (__c + 3) / 4, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1),
_VSTD::move(__x));
--__begin_;
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
__split_buffer<_Tp, _Allocator>::push_back(const_reference __x)
{
if (__end_ == __end_cap())
{
if (__begin_ > __first_)
{
difference_type __d = __begin_ - __first_;
__d = (__d + 1) / 2;
__end_ = _VSTD::move(__begin_, __end_, __begin_ - __d);
__begin_ -= __d;
}
else
{
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
__split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_), __x);
++__end_;
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
void
__split_buffer<_Tp, _Allocator>::push_back(value_type&& __x)
{
if (__end_ == __end_cap())
{
if (__begin_ > __first_)
{
difference_type __d = __begin_ - __first_;
__d = (__d + 1) / 2;
__end_ = _VSTD::move(__begin_, __end_, __begin_ - __d);
__begin_ -= __d;
}
else
{
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
__split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_),
_VSTD::move(__x));
++__end_;
}
template <class _Tp, class _Allocator>
template <class... _Args>
void
__split_buffer<_Tp, _Allocator>::emplace_back(_Args&&... __args)
{
if (__end_ == __end_cap())
{
if (__begin_ > __first_)
{
difference_type __d = __begin_ - __first_;
__d = (__d + 1) / 2;
__end_ = _VSTD::move(__begin_, __end_, __begin_ - __d);
__begin_ -= __d;
}
else
{
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
__split_buffer<value_type, __alloc_rr&> __t(__c, __c / 4, __alloc());
__t.__construct_at_end(move_iterator<pointer>(__begin_),
move_iterator<pointer>(__end_));
_VSTD::swap(__first_, __t.__first_);
_VSTD::swap(__begin_, __t.__begin_);
_VSTD::swap(__end_, __t.__end_);
_VSTD::swap(__end_cap(), __t.__end_cap());
}
}
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_),
_VSTD::forward<_Args>(__args)...);
++__end_;
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(__split_buffer<_Tp, _Allocator>& __x, __split_buffer<_Tp, _Allocator>& __y)
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
{
__x.swap(__y);
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_SPLIT_BUFFER

985
third_party/libcxx/__string vendored Normal file
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@ -0,0 +1,985 @@
// -*- C++ -*-
//===-------------------------- __string ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___STRING
#define _LIBCPP___STRING
/*
string synopsis
namespace std
{
template <class charT>
struct char_traits
{
typedef charT char_type;
typedef ... int_type;
typedef streamoff off_type;
typedef streampos pos_type;
typedef mbstate_t state_type;
static constexpr void assign(char_type& c1, const char_type& c2) noexcept;
static constexpr bool eq(char_type c1, char_type c2) noexcept;
static constexpr bool lt(char_type c1, char_type c2) noexcept;
static constexpr int compare(const char_type* s1, const char_type* s2, size_t n);
static constexpr size_t length(const char_type* s);
static constexpr const char_type*
find(const char_type* s, size_t n, const char_type& a);
static char_type* move(char_type* s1, const char_type* s2, size_t n);
static char_type* copy(char_type* s1, const char_type* s2, size_t n);
static char_type* assign(char_type* s, size_t n, char_type a);
static constexpr int_type not_eof(int_type c) noexcept;
static constexpr char_type to_char_type(int_type c) noexcept;
static constexpr int_type to_int_type(char_type c) noexcept;
static constexpr bool eq_int_type(int_type c1, int_type c2) noexcept;
static constexpr int_type eof() noexcept;
};
template <> struct char_traits<char>;
template <> struct char_traits<wchar_t>;
template <> struct char_traits<char8_t>; // c++20
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/algorithm" // for search and min
#include "third_party/libcxx/cstdio" // For EOF.
#include "third_party/libcxx/memory" // for __murmur2_or_cityhash
#include "third_party/libcxx/__debug"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
// char_traits
template <class _CharT>
struct _LIBCPP_TEMPLATE_VIS char_traits
{
typedef _CharT char_type;
typedef int int_type;
typedef streamoff off_type;
typedef streampos pos_type;
typedef mbstate_t state_type;
static inline void _LIBCPP_CONSTEXPR_AFTER_CXX14
assign(char_type& __c1, const char_type& __c2) _NOEXCEPT {__c1 = __c2;}
static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 < __c2;}
static _LIBCPP_CONSTEXPR_AFTER_CXX14
int compare(const char_type* __s1, const char_type* __s2, size_t __n);
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t length(const char_type* __s);
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
const char_type* find(const char_type* __s, size_t __n, const char_type& __a);
static char_type* move(char_type* __s1, const char_type* __s2, size_t __n);
_LIBCPP_INLINE_VISIBILITY
static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n);
_LIBCPP_INLINE_VISIBILITY
static char_type* assign(char_type* __s, size_t __n, char_type __a);
static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
{return char_type(__c);}
static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
{return int_type(__c);}
static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
{return int_type(EOF);}
};
template <class _CharT>
_LIBCPP_CONSTEXPR_AFTER_CXX14 int
char_traits<_CharT>::compare(const char_type* __s1, const char_type* __s2, size_t __n)
{
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
}
template <class _CharT>
inline
_LIBCPP_CONSTEXPR_AFTER_CXX14 size_t
char_traits<_CharT>::length(const char_type* __s)
{
size_t __len = 0;
for (; !eq(*__s, char_type(0)); ++__s)
++__len;
return __len;
}
template <class _CharT>
inline
_LIBCPP_CONSTEXPR_AFTER_CXX14 const _CharT*
char_traits<_CharT>::find(const char_type* __s, size_t __n, const char_type& __a)
{
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return 0;
}
template <class _CharT>
_CharT*
char_traits<_CharT>::move(char_type* __s1, const char_type* __s2, size_t __n)
{
char_type* __r = __s1;
if (__s1 < __s2)
{
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
}
else if (__s2 < __s1)
{
__s1 += __n;
__s2 += __n;
for (; __n; --__n)
assign(*--__s1, *--__s2);
}
return __r;
}
template <class _CharT>
inline
_CharT*
char_traits<_CharT>::copy(char_type* __s1, const char_type* __s2, size_t __n)
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
char_type* __r = __s1;
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
return __r;
}
template <class _CharT>
inline
_CharT*
char_traits<_CharT>::assign(char_type* __s, size_t __n, char_type __a)
{
char_type* __r = __s;
for (; __n; --__n, ++__s)
assign(*__s, __a);
return __r;
}
// char_traits<char>
template <>
struct _LIBCPP_TEMPLATE_VIS char_traits<char>
{
typedef char char_type;
typedef int int_type;
typedef streamoff off_type;
typedef streampos pos_type;
typedef mbstate_t state_type;
static inline _LIBCPP_CONSTEXPR_AFTER_CXX14
void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT {__c1 = __c2;}
static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
{return (unsigned char)__c1 < (unsigned char)__c2;}
static _LIBCPP_CONSTEXPR_AFTER_CXX14
int compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
static inline size_t _LIBCPP_CONSTEXPR_AFTER_CXX14
length(const char_type* __s) _NOEXCEPT {return __builtin_strlen(__s);}
static _LIBCPP_CONSTEXPR_AFTER_CXX14
const char_type* find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
static inline char_type* move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{return __n == 0 ? __s1 : (char_type*) memmove(__s1, __s2, __n);}
static inline char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
return __n == 0 ? __s1 : (char_type*)memcpy(__s1, __s2, __n);
}
static inline char_type* assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
{return __n == 0 ? __s : (char_type*)memset(__s, to_int_type(__a), __n);}
static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
{return char_type(__c);}
static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
{return int_type((unsigned char)__c);}
static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
{return int_type(EOF);}
};
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
int
char_traits<char>::compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
if (__n == 0)
return 0;
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_memcmp(__s1, __s2, __n);
#elif _LIBCPP_STD_VER <= 14
return memcmp(__s1, __s2, __n);
#else
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
#endif
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
const char*
char_traits<char>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
{
if (__n == 0)
return nullptr;
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_char_memchr(__s, to_int_type(__a), __n);
#elif _LIBCPP_STD_VER <= 14
return (const char_type*) memchr(__s, to_int_type(__a), __n);
#else
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return nullptr;
#endif
}
// char_traits<wchar_t>
template <>
struct _LIBCPP_TEMPLATE_VIS char_traits<wchar_t>
{
typedef wchar_t char_type;
typedef wint_t int_type;
typedef streamoff off_type;
typedef streampos pos_type;
typedef mbstate_t state_type;
static inline _LIBCPP_CONSTEXPR_AFTER_CXX14
void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT {__c1 = __c2;}
static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 < __c2;}
static _LIBCPP_CONSTEXPR_AFTER_CXX14
int compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
static _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t length(const char_type* __s) _NOEXCEPT;
static _LIBCPP_CONSTEXPR_AFTER_CXX14
const char_type* find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
static inline char_type* move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{return __n == 0 ? __s1 : (char_type*)wmemmove(__s1, __s2, __n);}
static inline char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
return __n == 0 ? __s1 : (char_type*)wmemcpy(__s1, __s2, __n);
}
static inline char_type* assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
{return __n == 0 ? __s : (char_type*)wmemset(__s, __a, __n);}
static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
{return char_type(__c);}
static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
{return int_type(__c);}
static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
{return int_type(WEOF);}
};
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
int
char_traits<wchar_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
if (__n == 0)
return 0;
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_wmemcmp(__s1, __s2, __n);
#elif _LIBCPP_STD_VER <= 14
return wmemcmp(__s1, __s2, __n);
#else
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
#endif
}
template <class _Traits>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
inline size_t __char_traits_length_checked(const typename _Traits::char_type* __s) _NOEXCEPT {
#if _LIBCPP_DEBUG_LEVEL >= 1
return __s ? _Traits::length(__s) : (_VSTD::__libcpp_debug_function(_VSTD::__libcpp_debug_info(__FILE__, __LINE__, "p == nullptr", "null pointer pass to non-null argument of char_traits<...>::length")), 0);
#else
return _Traits::length(__s);
#endif
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t
char_traits<wchar_t>::length(const char_type* __s) _NOEXCEPT
{
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_wcslen(__s);
#elif _LIBCPP_STD_VER <= 14
return wcslen(__s);
#else
size_t __len = 0;
for (; !eq(*__s, char_type(0)); ++__s)
++__len;
return __len;
#endif
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
const wchar_t*
char_traits<wchar_t>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
{
if (__n == 0)
return nullptr;
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_wmemchr(__s, __a, __n);
#elif _LIBCPP_STD_VER <= 14
return wmemchr(__s, __a, __n);
#else
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return nullptr;
#endif
}
#ifndef _LIBCPP_NO_HAS_CHAR8_T
template <>
struct _LIBCPP_TEMPLATE_VIS char_traits<char8_t>
{
typedef char8_t char_type;
typedef unsigned int int_type;
typedef streamoff off_type;
typedef u8streampos pos_type;
typedef mbstate_t state_type;
static inline constexpr void assign(char_type& __c1, const char_type& __c2) noexcept
{__c1 = __c2;}
static inline constexpr bool eq(char_type __c1, char_type __c2) noexcept
{return __c1 == __c2;}
static inline constexpr bool lt(char_type __c1, char_type __c2) noexcept
{return __c1 < __c2;}
static constexpr
int compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
static constexpr
size_t length(const char_type* __s) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY static constexpr
const char_type* find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
static char_type* move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{return __n == 0 ? __s1 : (char_type*) memmove(__s1, __s2, __n);}
static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
return __n == 0 ? __s1 : (char_type*)memcpy(__s1, __s2, __n);
}
static char_type* assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
{return __n == 0 ? __s : (char_type*)memset(__s, to_int_type(__a), __n);}
static inline constexpr int_type not_eof(int_type __c) noexcept
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline constexpr char_type to_char_type(int_type __c) noexcept
{return char_type(__c);}
static inline constexpr int_type to_int_type(char_type __c) noexcept
{return int_type(__c);}
static inline constexpr bool eq_int_type(int_type __c1, int_type __c2) noexcept
{return __c1 == __c2;}
static inline constexpr int_type eof() noexcept
{return int_type(EOF);}
};
// TODO use '__builtin_strlen' if it ever supports char8_t ??
inline constexpr
size_t
char_traits<char8_t>::length(const char_type* __s) _NOEXCEPT
{
size_t __len = 0;
for (; !eq(*__s, char_type(0)); ++__s)
++__len;
return __len;
}
inline constexpr
int
char_traits<char8_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
#if __has_feature(cxx_constexpr_string_builtins)
return __builtin_memcmp(__s1, __s2, __n);
#else
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
#endif
}
// TODO use '__builtin_char_memchr' if it ever supports char8_t ??
inline constexpr
const char8_t*
char_traits<char8_t>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
{
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return 0;
}
#endif // #_LIBCPP_NO_HAS_CHAR8_T
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
template <>
struct _LIBCPP_TEMPLATE_VIS char_traits<char16_t>
{
typedef char16_t char_type;
typedef uint_least16_t int_type;
typedef streamoff off_type;
typedef u16streampos pos_type;
typedef mbstate_t state_type;
static inline _LIBCPP_CONSTEXPR_AFTER_CXX14
void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT {__c1 = __c2;}
static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 < __c2;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
int compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t length(const char_type* __s) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
const char_type* find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT;
static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
{return char_type(__c);}
static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
{return int_type(__c);}
static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
{return int_type(0xFFFF);}
};
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
int
char_traits<char16_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t
char_traits<char16_t>::length(const char_type* __s) _NOEXCEPT
{
size_t __len = 0;
for (; !eq(*__s, char_type(0)); ++__s)
++__len;
return __len;
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
const char16_t*
char_traits<char16_t>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
{
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return 0;
}
inline
char16_t*
char_traits<char16_t>::move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
char_type* __r = __s1;
if (__s1 < __s2)
{
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
}
else if (__s2 < __s1)
{
__s1 += __n;
__s2 += __n;
for (; __n; --__n)
assign(*--__s1, *--__s2);
}
return __r;
}
inline
char16_t*
char_traits<char16_t>::copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
char_type* __r = __s1;
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
return __r;
}
inline
char16_t*
char_traits<char16_t>::assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
{
char_type* __r = __s;
for (; __n; --__n, ++__s)
assign(*__s, __a);
return __r;
}
template <>
struct _LIBCPP_TEMPLATE_VIS char_traits<char32_t>
{
typedef char32_t char_type;
typedef uint_least32_t int_type;
typedef streamoff off_type;
typedef u32streampos pos_type;
typedef mbstate_t state_type;
static inline _LIBCPP_CONSTEXPR_AFTER_CXX14
void assign(char_type& __c1, const char_type& __c2) _NOEXCEPT {__c1 = __c2;}
static inline _LIBCPP_CONSTEXPR bool eq(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR bool lt(char_type __c1, char_type __c2) _NOEXCEPT
{return __c1 < __c2;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
int compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t length(const char_type* __s) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR_AFTER_CXX14
const char_type* find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
static char_type* assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT;
static inline _LIBCPP_CONSTEXPR int_type not_eof(int_type __c) _NOEXCEPT
{return eq_int_type(__c, eof()) ? ~eof() : __c;}
static inline _LIBCPP_CONSTEXPR char_type to_char_type(int_type __c) _NOEXCEPT
{return char_type(__c);}
static inline _LIBCPP_CONSTEXPR int_type to_int_type(char_type __c) _NOEXCEPT
{return int_type(__c);}
static inline _LIBCPP_CONSTEXPR bool eq_int_type(int_type __c1, int_type __c2) _NOEXCEPT
{return __c1 == __c2;}
static inline _LIBCPP_CONSTEXPR int_type eof() _NOEXCEPT
{return int_type(0xFFFFFFFF);}
};
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
int
char_traits<char32_t>::compare(const char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
for (; __n; --__n, ++__s1, ++__s2)
{
if (lt(*__s1, *__s2))
return -1;
if (lt(*__s2, *__s1))
return 1;
}
return 0;
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
size_t
char_traits<char32_t>::length(const char_type* __s) _NOEXCEPT
{
size_t __len = 0;
for (; !eq(*__s, char_type(0)); ++__s)
++__len;
return __len;
}
inline _LIBCPP_CONSTEXPR_AFTER_CXX14
const char32_t*
char_traits<char32_t>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
{
for (; __n; --__n)
{
if (eq(*__s, __a))
return __s;
++__s;
}
return 0;
}
inline
char32_t*
char_traits<char32_t>::move(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
char_type* __r = __s1;
if (__s1 < __s2)
{
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
}
else if (__s2 < __s1)
{
__s1 += __n;
__s2 += __n;
for (; __n; --__n)
assign(*--__s1, *--__s2);
}
return __r;
}
inline
char32_t*
char_traits<char32_t>::copy(char_type* __s1, const char_type* __s2, size_t __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range");
char_type* __r = __s1;
for (; __n; --__n, ++__s1, ++__s2)
assign(*__s1, *__s2);
return __r;
}
inline
char32_t*
char_traits<char32_t>::assign(char_type* __s, size_t __n, char_type __a) _NOEXCEPT
{
char_type* __r = __s;
for (; __n; --__n, ++__s)
assign(*__s, __a);
return __r;
}
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
// helper fns for basic_string and string_view
// __str_find
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find(const _CharT *__p, _SizeT __sz,
_CharT __c, _SizeT __pos) _NOEXCEPT
{
if (__pos >= __sz)
return __npos;
const _CharT* __r = _Traits::find(__p + __pos, __sz - __pos, __c);
if (__r == 0)
return __npos;
return static_cast<_SizeT>(__r - __p);
}
template <class _CharT, class _Traits>
inline _LIBCPP_CONSTEXPR_AFTER_CXX11 const _CharT *
__search_substring(const _CharT *__first1, const _CharT *__last1,
const _CharT *__first2, const _CharT *__last2) {
// Take advantage of knowing source and pattern lengths.
// Stop short when source is smaller than pattern.
const ptrdiff_t __len2 = __last2 - __first2;
if (__len2 == 0)
return __first1;
ptrdiff_t __len1 = __last1 - __first1;
if (__len1 < __len2)
return __last1;
// First element of __first2 is loop invariant.
_CharT __f2 = *__first2;
while (true) {
__len1 = __last1 - __first1;
// Check whether __first1 still has at least __len2 bytes.
if (__len1 < __len2)
return __last1;
// Find __f2 the first byte matching in __first1.
__first1 = _Traits::find(__first1, __len1 - __len2 + 1, __f2);
if (__first1 == 0)
return __last1;
// It is faster to compare from the first byte of __first1 even if we
// already know that it matches the first byte of __first2: this is because
// __first2 is most likely aligned, as it is user's "pattern" string, and
// __first1 + 1 is most likely not aligned, as the match is in the middle of
// the string.
if (_Traits::compare(__first1, __first2, __len2) == 0)
return __first1;
++__first1;
}
}
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
if (__pos > __sz)
return __npos;
if (__n == 0) // There is nothing to search, just return __pos.
return __pos;
const _CharT *__r = __search_substring<_CharT, _Traits>(
__p + __pos, __p + __sz, __s, __s + __n);
if (__r == __p + __sz)
return __npos;
return static_cast<_SizeT>(__r - __p);
}
// __str_rfind
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_rfind(const _CharT *__p, _SizeT __sz,
_CharT __c, _SizeT __pos) _NOEXCEPT
{
if (__sz < 1)
return __npos;
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
{
if (_Traits::eq(*--__ps, __c))
return static_cast<_SizeT>(__ps - __p);
}
return __npos;
}
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_rfind(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
__pos = _VSTD::min(__pos, __sz);
if (__n < __sz - __pos)
__pos += __n;
else
__pos = __sz;
const _CharT* __r = _VSTD::__find_end(
__p, __p + __pos, __s, __s + __n, _Traits::eq,
random_access_iterator_tag(), random_access_iterator_tag());
if (__n > 0 && __r == __p + __pos)
return __npos;
return static_cast<_SizeT>(__r - __p);
}
// __str_find_first_of
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_first_of(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
if (__pos >= __sz || __n == 0)
return __npos;
const _CharT* __r = _VSTD::__find_first_of_ce
(__p + __pos, __p + __sz, __s, __s + __n, _Traits::eq );
if (__r == __p + __sz)
return __npos;
return static_cast<_SizeT>(__r - __p);
}
// __str_find_last_of
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_last_of(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
if (__n != 0)
{
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
{
const _CharT* __r = _Traits::find(__s, __n, *--__ps);
if (__r)
return static_cast<_SizeT>(__ps - __p);
}
}
return __npos;
}
// __str_find_first_not_of
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_first_not_of(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
if (__pos < __sz)
{
const _CharT* __pe = __p + __sz;
for (const _CharT* __ps = __p + __pos; __ps != __pe; ++__ps)
if (_Traits::find(__s, __n, *__ps) == 0)
return static_cast<_SizeT>(__ps - __p);
}
return __npos;
}
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_first_not_of(const _CharT *__p, _SizeT __sz,
_CharT __c, _SizeT __pos) _NOEXCEPT
{
if (__pos < __sz)
{
const _CharT* __pe = __p + __sz;
for (const _CharT* __ps = __p + __pos; __ps != __pe; ++__ps)
if (!_Traits::eq(*__ps, __c))
return static_cast<_SizeT>(__ps - __p);
}
return __npos;
}
// __str_find_last_not_of
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_last_not_of(const _CharT *__p, _SizeT __sz,
const _CharT* __s, _SizeT __pos, _SizeT __n) _NOEXCEPT
{
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
if (_Traits::find(__s, __n, *--__ps) == 0)
return static_cast<_SizeT>(__ps - __p);
return __npos;
}
template<class _CharT, class _SizeT, class _Traits, _SizeT __npos>
inline _SizeT _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
__str_find_last_not_of(const _CharT *__p, _SizeT __sz,
_CharT __c, _SizeT __pos) _NOEXCEPT
{
if (__pos < __sz)
++__pos;
else
__pos = __sz;
for (const _CharT* __ps = __p + __pos; __ps != __p;)
if (!_Traits::eq(*--__ps, __c))
return static_cast<_SizeT>(__ps - __p);
return __npos;
}
template<class _Ptr>
inline _LIBCPP_INLINE_VISIBILITY
size_t __do_string_hash(_Ptr __p, _Ptr __e)
{
typedef typename iterator_traits<_Ptr>::value_type value_type;
return __murmur2_or_cityhash<size_t>()(__p, (__e-__p)*sizeof(value_type));
}
template <class _CharT, class _Iter, class _Traits=char_traits<_CharT> >
struct __quoted_output_proxy
{
_Iter __first;
_Iter __last;
_CharT __delim;
_CharT __escape;
__quoted_output_proxy(_Iter __f, _Iter __l, _CharT __d, _CharT __e)
: __first(__f), __last(__l), __delim(__d), __escape(__e) {}
// This would be a nice place for a string_ref
};
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___STRING

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_THREADING_SUPPORT
#define _LIBCPP_THREADING_SUPPORT
#include "third_party/libcxx/__config"
#include "third_party/libcxx/chrono"
#include "third_party/libcxx/iosfwd"
#include "third_party/libcxx/errno.h"
#ifndef _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER
#pragma GCC system_header
#endif
#if defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
# include "third_party/libcxx/__external_threading"
#elif !defined(_LIBCPP_HAS_NO_THREADS)
#if defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
# include "third_party/libcxx/pthread.h"
# include "third_party/libcxx/sched.h"
#endif
#if defined(_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) || \
defined(_LIBCPP_BUILDING_THREAD_LIBRARY_EXTERNAL) || \
defined(_LIBCPP_HAS_THREAD_API_WIN32)
#define _LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_FUNC_VIS
#else
#define _LIBCPP_THREAD_ABI_VISIBILITY inline _LIBCPP_INLINE_VISIBILITY
#endif
#if defined(__FreeBSD__) && defined(__clang__) && __has_attribute(no_thread_safety_analysis)
#define _LIBCPP_NO_THREAD_SAFETY_ANALYSIS __attribute__((no_thread_safety_analysis))
#else
#define _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
#endif
typedef ::timespec __libcpp_timespec_t;
#endif // !defined(_LIBCPP_HAS_NO_THREADS)
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
#if !defined(_LIBCPP_HAS_NO_THREADS)
#if defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
// Mutex
typedef pthread_mutex_t __libcpp_mutex_t;
#define _LIBCPP_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
typedef pthread_mutex_t __libcpp_recursive_mutex_t;
// Condition Variable
typedef pthread_cond_t __libcpp_condvar_t;
#define _LIBCPP_CONDVAR_INITIALIZER PTHREAD_COND_INITIALIZER
// Execute once
typedef pthread_once_t __libcpp_exec_once_flag;
#define _LIBCPP_EXEC_ONCE_INITIALIZER PTHREAD_ONCE_INIT
// Thread id
typedef pthread_t __libcpp_thread_id;
// Thread
#define _LIBCPP_NULL_THREAD 0U
typedef pthread_t __libcpp_thread_t;
// Thread Local Storage
typedef pthread_key_t __libcpp_tls_key;
#define _LIBCPP_TLS_DESTRUCTOR_CC
#elif !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
// Mutex
typedef void* __libcpp_mutex_t;
#define _LIBCPP_MUTEX_INITIALIZER 0
#if defined(_M_IX86) || defined(__i386__) || defined(_M_ARM) || defined(__arm__)
typedef void* __libcpp_recursive_mutex_t[6];
#elif defined(_M_AMD64) || defined(__x86_64__) || defined(_M_ARM64) || defined(__aarch64__)
typedef void* __libcpp_recursive_mutex_t[5];
#else
# error Unsupported architecture
#endif
// Condition Variable
typedef void* __libcpp_condvar_t;
#define _LIBCPP_CONDVAR_INITIALIZER 0
// Execute Once
typedef void* __libcpp_exec_once_flag;
#define _LIBCPP_EXEC_ONCE_INITIALIZER 0
// Thread ID
typedef long __libcpp_thread_id;
// Thread
#define _LIBCPP_NULL_THREAD 0U
typedef void* __libcpp_thread_t;
// Thread Local Storage
typedef long __libcpp_tls_key;
#define _LIBCPP_TLS_DESTRUCTOR_CC __stdcall
#endif // !defined(_LIBCPP_HAS_THREAD_API_PTHREAD) && !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
#if !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
// Mutex
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_recursive_mutex_init(__libcpp_recursive_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_recursive_mutex_lock(__libcpp_recursive_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
bool __libcpp_recursive_mutex_trylock(__libcpp_recursive_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_recursive_mutex_unlock(__libcpp_recursive_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_recursive_mutex_destroy(__libcpp_recursive_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_mutex_lock(__libcpp_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
bool __libcpp_mutex_trylock(__libcpp_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_mutex_unlock(__libcpp_mutex_t *__m);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_mutex_destroy(__libcpp_mutex_t *__m);
// Condition variable
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_condvar_signal(__libcpp_condvar_t* __cv);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_condvar_broadcast(__libcpp_condvar_t* __cv);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_condvar_wait(__libcpp_condvar_t* __cv, __libcpp_mutex_t* __m);
_LIBCPP_THREAD_ABI_VISIBILITY _LIBCPP_NO_THREAD_SAFETY_ANALYSIS
int __libcpp_condvar_timedwait(__libcpp_condvar_t *__cv, __libcpp_mutex_t *__m,
__libcpp_timespec_t *__ts);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_condvar_destroy(__libcpp_condvar_t* __cv);
// Execute once
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_execute_once(__libcpp_exec_once_flag *flag,
void (*init_routine)());
// Thread id
_LIBCPP_THREAD_ABI_VISIBILITY
bool __libcpp_thread_id_equal(__libcpp_thread_id t1, __libcpp_thread_id t2);
_LIBCPP_THREAD_ABI_VISIBILITY
bool __libcpp_thread_id_less(__libcpp_thread_id t1, __libcpp_thread_id t2);
// Thread
_LIBCPP_THREAD_ABI_VISIBILITY
bool __libcpp_thread_isnull(const __libcpp_thread_t *__t);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_thread_create(__libcpp_thread_t *__t, void *(*__func)(void *),
void *__arg);
_LIBCPP_THREAD_ABI_VISIBILITY
__libcpp_thread_id __libcpp_thread_get_current_id();
_LIBCPP_THREAD_ABI_VISIBILITY
__libcpp_thread_id __libcpp_thread_get_id(const __libcpp_thread_t *__t);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_thread_join(__libcpp_thread_t *__t);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_thread_detach(__libcpp_thread_t *__t);
_LIBCPP_THREAD_ABI_VISIBILITY
void __libcpp_thread_yield();
_LIBCPP_THREAD_ABI_VISIBILITY
void __libcpp_thread_sleep_for(const chrono::nanoseconds& __ns);
// Thread local storage
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_tls_create(__libcpp_tls_key* __key,
void(_LIBCPP_TLS_DESTRUCTOR_CC* __at_exit)(void*));
_LIBCPP_THREAD_ABI_VISIBILITY
void *__libcpp_tls_get(__libcpp_tls_key __key);
_LIBCPP_THREAD_ABI_VISIBILITY
int __libcpp_tls_set(__libcpp_tls_key __key, void *__p);
#endif // !defined(_LIBCPP_HAS_THREAD_API_EXTERNAL)
#if (!defined(_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL) || \
defined(_LIBCPP_BUILDING_THREAD_LIBRARY_EXTERNAL)) && \
defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
int __libcpp_recursive_mutex_init(__libcpp_recursive_mutex_t *__m)
{
pthread_mutexattr_t attr;
int __ec = pthread_mutexattr_init(&attr);
if (__ec)
return __ec;
__ec = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
if (__ec) {
pthread_mutexattr_destroy(&attr);
return __ec;
}
__ec = pthread_mutex_init(__m, &attr);
if (__ec) {
pthread_mutexattr_destroy(&attr);
return __ec;
}
__ec = pthread_mutexattr_destroy(&attr);
if (__ec) {
pthread_mutex_destroy(__m);
return __ec;
}
return 0;
}
int __libcpp_recursive_mutex_lock(__libcpp_recursive_mutex_t *__m)
{
return pthread_mutex_lock(__m);
}
bool __libcpp_recursive_mutex_trylock(__libcpp_recursive_mutex_t *__m)
{
return pthread_mutex_trylock(__m) == 0;
}
int __libcpp_recursive_mutex_unlock(__libcpp_mutex_t *__m)
{
return pthread_mutex_unlock(__m);
}
int __libcpp_recursive_mutex_destroy(__libcpp_recursive_mutex_t *__m)
{
return pthread_mutex_destroy(__m);
}
int __libcpp_mutex_lock(__libcpp_mutex_t *__m)
{
return pthread_mutex_lock(__m);
}
bool __libcpp_mutex_trylock(__libcpp_mutex_t *__m)
{
return pthread_mutex_trylock(__m) == 0;
}
int __libcpp_mutex_unlock(__libcpp_mutex_t *__m)
{
return pthread_mutex_unlock(__m);
}
int __libcpp_mutex_destroy(__libcpp_mutex_t *__m)
{
return pthread_mutex_destroy(__m);
}
// Condition Variable
int __libcpp_condvar_signal(__libcpp_condvar_t *__cv)
{
return pthread_cond_signal(__cv);
}
int __libcpp_condvar_broadcast(__libcpp_condvar_t *__cv)
{
return pthread_cond_broadcast(__cv);
}
int __libcpp_condvar_wait(__libcpp_condvar_t *__cv, __libcpp_mutex_t *__m)
{
return pthread_cond_wait(__cv, __m);
}
int __libcpp_condvar_timedwait(__libcpp_condvar_t *__cv, __libcpp_mutex_t *__m,
__libcpp_timespec_t *__ts)
{
return pthread_cond_timedwait(__cv, __m, __ts);
}
int __libcpp_condvar_destroy(__libcpp_condvar_t *__cv)
{
return pthread_cond_destroy(__cv);
}
// Execute once
int __libcpp_execute_once(__libcpp_exec_once_flag *flag,
void (*init_routine)()) {
return pthread_once(flag, init_routine);
}
// Thread id
// Returns non-zero if the thread ids are equal, otherwise 0
bool __libcpp_thread_id_equal(__libcpp_thread_id t1, __libcpp_thread_id t2)
{
return pthread_equal(t1, t2) != 0;
}
// Returns non-zero if t1 < t2, otherwise 0
bool __libcpp_thread_id_less(__libcpp_thread_id t1, __libcpp_thread_id t2)
{
return t1 < t2;
}
// Thread
bool __libcpp_thread_isnull(const __libcpp_thread_t *__t) {
return *__t == 0;
}
int __libcpp_thread_create(__libcpp_thread_t *__t, void *(*__func)(void *),
void *__arg)
{
return pthread_create(__t, 0, __func, __arg);
}
__libcpp_thread_id __libcpp_thread_get_current_id()
{
return pthread_self();
}
__libcpp_thread_id __libcpp_thread_get_id(const __libcpp_thread_t *__t)
{
return *__t;
}
int __libcpp_thread_join(__libcpp_thread_t *__t)
{
return pthread_join(*__t, 0);
}
int __libcpp_thread_detach(__libcpp_thread_t *__t)
{
return pthread_detach(*__t);
}
void __libcpp_thread_yield()
{
sched_yield();
}
void __libcpp_thread_sleep_for(const chrono::nanoseconds& __ns)
{
using namespace chrono;
seconds __s = duration_cast<seconds>(__ns);
__libcpp_timespec_t __ts;
typedef decltype(__ts.tv_sec) ts_sec;
_LIBCPP_CONSTEXPR ts_sec __ts_sec_max = numeric_limits<ts_sec>::max();
if (__s.count() < __ts_sec_max)
{
__ts.tv_sec = static_cast<ts_sec>(__s.count());
__ts.tv_nsec = static_cast<decltype(__ts.tv_nsec)>((__ns - __s).count());
}
else
{
__ts.tv_sec = __ts_sec_max;
__ts.tv_nsec = 999999999; // (10^9 - 1)
}
while (nanosleep(&__ts, &__ts) == -1 && errno == EINTR);
}
// Thread local storage
int __libcpp_tls_create(__libcpp_tls_key *__key, void (*__at_exit)(void *))
{
return pthread_key_create(__key, __at_exit);
}
void *__libcpp_tls_get(__libcpp_tls_key __key)
{
return pthread_getspecific(__key);
}
int __libcpp_tls_set(__libcpp_tls_key __key, void *__p)
{
return pthread_setspecific(__key, __p);
}
#endif // !_LIBCPP_HAS_THREAD_LIBRARY_EXTERNAL || _LIBCPP_BUILDING_THREAD_LIBRARY_EXTERNAL
class _LIBCPP_TYPE_VIS thread;
class _LIBCPP_TYPE_VIS __thread_id;
namespace this_thread
{
_LIBCPP_INLINE_VISIBILITY __thread_id get_id() _NOEXCEPT;
} // this_thread
template<> struct hash<__thread_id>;
class _LIBCPP_TEMPLATE_VIS __thread_id
{
// FIXME: pthread_t is a pointer on Darwin but a long on Linux.
// NULL is the no-thread value on Darwin. Someone needs to check
// on other platforms. We assume 0 works everywhere for now.
__libcpp_thread_id __id_;
public:
_LIBCPP_INLINE_VISIBILITY
__thread_id() _NOEXCEPT : __id_(0) {}
friend _LIBCPP_INLINE_VISIBILITY
bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT
{ // don't pass id==0 to underlying routines
if (__x.__id_ == 0) return __y.__id_ == 0;
if (__y.__id_ == 0) return false;
return __libcpp_thread_id_equal(__x.__id_, __y.__id_);
}
friend _LIBCPP_INLINE_VISIBILITY
bool operator!=(__thread_id __x, __thread_id __y) _NOEXCEPT
{return !(__x == __y);}
friend _LIBCPP_INLINE_VISIBILITY
bool operator< (__thread_id __x, __thread_id __y) _NOEXCEPT
{ // id==0 is always less than any other thread_id
if (__x.__id_ == 0) return __y.__id_ != 0;
if (__y.__id_ == 0) return false;
return __libcpp_thread_id_less(__x.__id_, __y.__id_);
}
friend _LIBCPP_INLINE_VISIBILITY
bool operator<=(__thread_id __x, __thread_id __y) _NOEXCEPT
{return !(__y < __x);}
friend _LIBCPP_INLINE_VISIBILITY
bool operator> (__thread_id __x, __thread_id __y) _NOEXCEPT
{return __y < __x ;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator>=(__thread_id __x, __thread_id __y) _NOEXCEPT
{return !(__x < __y);}
_LIBCPP_INLINE_VISIBILITY
void __reset() { __id_ = 0; }
template<class _CharT, class _Traits>
friend
_LIBCPP_INLINE_VISIBILITY
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id);
private:
_LIBCPP_INLINE_VISIBILITY
__thread_id(__libcpp_thread_id __id) : __id_(__id) {}
friend __thread_id this_thread::get_id() _NOEXCEPT;
friend class _LIBCPP_TYPE_VIS thread;
friend struct _LIBCPP_TEMPLATE_VIS hash<__thread_id>;
};
namespace this_thread
{
inline _LIBCPP_INLINE_VISIBILITY
__thread_id
get_id() _NOEXCEPT
{
return __libcpp_thread_get_current_id();
}
} // this_thread
#endif // !_LIBCPP_HAS_NO_THREADS
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_THREADING_SUPPORT

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___TUPLE
#define _LIBCPP___TUPLE
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/type_traits"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size;
#if !defined(_LIBCPP_CXX03_LANG)
template <class _Tp, class...>
using __enable_if_tuple_size_imp = _Tp;
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp<
const _Tp,
typename enable_if<!is_volatile<_Tp>::value>::type,
integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
: public integral_constant<size_t, tuple_size<_Tp>::value> {};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp<
volatile _Tp,
typename enable_if<!is_const<_Tp>::value>::type,
integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
: public integral_constant<size_t, tuple_size<_Tp>::value> {};
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp<
const volatile _Tp,
integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
: public integral_constant<size_t, tuple_size<_Tp>::value> {};
#else
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<const _Tp> : public tuple_size<_Tp> {};
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<volatile _Tp> : public tuple_size<_Tp> {};
template <class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_size<const volatile _Tp> : public tuple_size<_Tp> {};
#endif
template <size_t _Ip, class _Tp> struct _LIBCPP_TEMPLATE_VIS tuple_element;
template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const _Tp>
{
typedef _LIBCPP_NODEBUG_TYPE typename add_const<typename tuple_element<_Ip, _Tp>::type>::type type;
};
template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, volatile _Tp>
{
typedef _LIBCPP_NODEBUG_TYPE typename add_volatile<typename tuple_element<_Ip, _Tp>::type>::type type;
};
template <size_t _Ip, class _Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, const volatile _Tp>
{
typedef _LIBCPP_NODEBUG_TYPE typename add_cv<typename tuple_element<_Ip, _Tp>::type>::type type;
};
template <class _Tp> struct __tuple_like : false_type {};
template <class _Tp> struct __tuple_like<const _Tp> : public __tuple_like<_Tp> {};
template <class _Tp> struct __tuple_like<volatile _Tp> : public __tuple_like<_Tp> {};
template <class _Tp> struct __tuple_like<const volatile _Tp> : public __tuple_like<_Tp> {};
// tuple specializations
#ifndef _LIBCPP_CXX03_LANG
template <size_t...> struct __tuple_indices {};
template <class _IdxType, _IdxType... _Values>
struct __integer_sequence {
template <template <class _OIdxType, _OIdxType...> class _ToIndexSeq, class _ToIndexType>
using __convert = _ToIndexSeq<_ToIndexType, _Values...>;
template <size_t _Sp>
using __to_tuple_indices = __tuple_indices<(_Values + _Sp)...>;
};
#if !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
namespace __detail {
template<typename _Tp, size_t ..._Extra> struct __repeat;
template<typename _Tp, _Tp ..._Np, size_t ..._Extra> struct __repeat<__integer_sequence<_Tp, _Np...>, _Extra...> {
typedef _LIBCPP_NODEBUG_TYPE __integer_sequence<_Tp,
_Np...,
sizeof...(_Np) + _Np...,
2 * sizeof...(_Np) + _Np...,
3 * sizeof...(_Np) + _Np...,
4 * sizeof...(_Np) + _Np...,
5 * sizeof...(_Np) + _Np...,
6 * sizeof...(_Np) + _Np...,
7 * sizeof...(_Np) + _Np...,
_Extra...> type;
};
template<size_t _Np> struct __parity;
template<size_t _Np> struct __make : __parity<_Np % 8>::template __pmake<_Np> {};
template<> struct __make<0> { typedef __integer_sequence<size_t> type; };
template<> struct __make<1> { typedef __integer_sequence<size_t, 0> type; };
template<> struct __make<2> { typedef __integer_sequence<size_t, 0, 1> type; };
template<> struct __make<3> { typedef __integer_sequence<size_t, 0, 1, 2> type; };
template<> struct __make<4> { typedef __integer_sequence<size_t, 0, 1, 2, 3> type; };
template<> struct __make<5> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4> type; };
template<> struct __make<6> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4, 5> type; };
template<> struct __make<7> { typedef __integer_sequence<size_t, 0, 1, 2, 3, 4, 5, 6> type; };
template<> struct __parity<0> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type> {}; };
template<> struct __parity<1> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 1> {}; };
template<> struct __parity<2> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 2, _Np - 1> {}; };
template<> struct __parity<3> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 3, _Np - 2, _Np - 1> {}; };
template<> struct __parity<4> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; };
template<> struct __parity<5> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; };
template<> struct __parity<6> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; };
template<> struct __parity<7> { template<size_t _Np> struct __pmake : __repeat<typename __make<_Np / 8>::type, _Np - 7, _Np - 6, _Np - 5, _Np - 4, _Np - 3, _Np - 2, _Np - 1> {}; };
} // namespace detail
#endif // !__has_builtin(__make_integer_seq) || defined(_LIBCPP_TESTING_FALLBACK_MAKE_INTEGER_SEQUENCE)
#if __has_builtin(__make_integer_seq)
template <size_t _Ep, size_t _Sp>
using __make_indices_imp =
typename __make_integer_seq<__integer_sequence, size_t, _Ep - _Sp>::template
__to_tuple_indices<_Sp>;
#else
template <size_t _Ep, size_t _Sp>
using __make_indices_imp =
typename __detail::__make<_Ep - _Sp>::type::template __to_tuple_indices<_Sp>;
#endif
template <size_t _Ep, size_t _Sp = 0>
struct __make_tuple_indices
{
static_assert(_Sp <= _Ep, "__make_tuple_indices input error");
typedef __make_indices_imp<_Ep, _Sp> type;
};
template <class ..._Tp> class _LIBCPP_TEMPLATE_VIS tuple;
template <class... _Tp> struct __tuple_like<tuple<_Tp...> > : true_type {};
template <class ..._Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<tuple<_Tp...> >
: public integral_constant<size_t, sizeof...(_Tp)>
{
};
template <size_t _Ip, class ..._Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, tuple<_Tp...> >::type&
get(tuple<_Tp...>&) _NOEXCEPT;
template <size_t _Ip, class ..._Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, tuple<_Tp...> >::type&
get(const tuple<_Tp...>&) _NOEXCEPT;
template <size_t _Ip, class ..._Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, tuple<_Tp...> >::type&&
get(tuple<_Tp...>&&) _NOEXCEPT;
template <size_t _Ip, class ..._Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, tuple<_Tp...> >::type&&
get(const tuple<_Tp...>&&) _NOEXCEPT;
#endif // !defined(_LIBCPP_CXX03_LANG)
// pair specializations
template <class _T1, class _T2> struct __tuple_like<pair<_T1, _T2> > : true_type {};
template <size_t _Ip, class _T1, class _T2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, pair<_T1, _T2> >::type&
get(pair<_T1, _T2>&) _NOEXCEPT;
template <size_t _Ip, class _T1, class _T2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, pair<_T1, _T2> >::type&
get(const pair<_T1, _T2>&) _NOEXCEPT;
#ifndef _LIBCPP_CXX03_LANG
template <size_t _Ip, class _T1, class _T2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
get(pair<_T1, _T2>&&) _NOEXCEPT;
template <size_t _Ip, class _T1, class _T2>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const typename tuple_element<_Ip, pair<_T1, _T2> >::type&&
get(const pair<_T1, _T2>&&) _NOEXCEPT;
#endif
// array specializations
template <class _Tp, size_t _Size> struct _LIBCPP_TEMPLATE_VIS array;
template <class _Tp, size_t _Size> struct __tuple_like<array<_Tp, _Size> > : true_type {};
template <size_t _Ip, class _Tp, size_t _Size>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&
get(array<_Tp, _Size>&) _NOEXCEPT;
template <size_t _Ip, class _Tp, size_t _Size>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _Tp&
get(const array<_Tp, _Size>&) _NOEXCEPT;
#ifndef _LIBCPP_CXX03_LANG
template <size_t _Ip, class _Tp, size_t _Size>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&&
get(array<_Tp, _Size>&&) _NOEXCEPT;
template <size_t _Ip, class _Tp, size_t _Size>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
const _Tp&&
get(const array<_Tp, _Size>&&) _NOEXCEPT;
#endif
#ifndef _LIBCPP_CXX03_LANG
// __tuple_types
template <class ..._Tp> struct __tuple_types {};
#if !__has_builtin(__type_pack_element)
namespace __indexer_detail {
template <size_t _Idx, class _Tp>
struct __indexed { using type _LIBCPP_NODEBUG_TYPE = _Tp; };
template <class _Types, class _Indexes> struct __indexer;
template <class ..._Types, size_t ..._Idx>
struct __indexer<__tuple_types<_Types...>, __tuple_indices<_Idx...>>
: __indexed<_Idx, _Types>...
{};
template <size_t _Idx, class _Tp>
__indexed<_Idx, _Tp> __at_index(__indexed<_Idx, _Tp> const&);
} // namespace __indexer_detail
template <size_t _Idx, class ..._Types>
using __type_pack_element _LIBCPP_NODEBUG_TYPE = typename decltype(
__indexer_detail::__at_index<_Idx>(
__indexer_detail::__indexer<
__tuple_types<_Types...>,
typename __make_tuple_indices<sizeof...(_Types)>::type
>{})
)::type;
#endif
template <size_t _Ip, class ..._Types>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, __tuple_types<_Types...>>
{
static_assert(_Ip < sizeof...(_Types), "tuple_element index out of range");
typedef _LIBCPP_NODEBUG_TYPE __type_pack_element<_Ip, _Types...> type;
};
template <class ..._Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_size<__tuple_types<_Tp...> >
: public integral_constant<size_t, sizeof...(_Tp)>
{
};
template <class... _Tp> struct __tuple_like<__tuple_types<_Tp...> > : true_type {};
template <bool _ApplyLV, bool _ApplyConst, bool _ApplyVolatile>
struct __apply_cv_mf;
template <>
struct __apply_cv_mf<false, false, false> {
template <class _Tp> using __apply = _Tp;
};
template <>
struct __apply_cv_mf<false, true, false> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = const _Tp;
};
template <>
struct __apply_cv_mf<false, false, true> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = volatile _Tp;
};
template <>
struct __apply_cv_mf<false, true, true> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = const volatile _Tp;
};
template <>
struct __apply_cv_mf<true, false, false> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = _Tp&;
};
template <>
struct __apply_cv_mf<true, true, false> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = const _Tp&;
};
template <>
struct __apply_cv_mf<true, false, true> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = volatile _Tp&;
};
template <>
struct __apply_cv_mf<true, true, true> {
template <class _Tp> using __apply _LIBCPP_NODEBUG_TYPE = const volatile _Tp&;
};
template <class _Tp, class _RawTp = typename remove_reference<_Tp>::type>
using __apply_cv_t _LIBCPP_NODEBUG_TYPE = __apply_cv_mf<
is_lvalue_reference<_Tp>::value,
is_const<_RawTp>::value,
is_volatile<_RawTp>::value>;
// __make_tuple_types
// __make_tuple_types<_Tuple<_Types...>, _Ep, _Sp>::type is a
// __tuple_types<_Types...> using only those _Types in the range [_Sp, _Ep).
// _Sp defaults to 0 and _Ep defaults to tuple_size<_Tuple>. If _Tuple is a
// lvalue_reference type, then __tuple_types<_Types&...> is the result.
template <class _TupleTypes, class _TupleIndices>
struct __make_tuple_types_flat;
template <template <class...> class _Tuple, class ..._Types, size_t ..._Idx>
struct __make_tuple_types_flat<_Tuple<_Types...>, __tuple_indices<_Idx...>> {
// Specialization for pair, tuple, and __tuple_types
template <class _Tp, class _ApplyFn = __apply_cv_t<_Tp>>
using __apply_quals _LIBCPP_NODEBUG_TYPE = __tuple_types<
typename _ApplyFn::template __apply<__type_pack_element<_Idx, _Types...>>...
>;
};
template <class _Vt, size_t _Np, size_t ..._Idx>
struct __make_tuple_types_flat<array<_Vt, _Np>, __tuple_indices<_Idx...>> {
template <size_t>
using __value_type = _Vt;
template <class _Tp, class _ApplyFn = __apply_cv_t<_Tp>>
using __apply_quals = __tuple_types<
typename _ApplyFn::template __apply<__value_type<_Idx>>...
>;
};
template <class _Tp, size_t _Ep = tuple_size<typename remove_reference<_Tp>::type>::value,
size_t _Sp = 0,
bool _SameSize = (_Ep == tuple_size<typename remove_reference<_Tp>::type>::value)>
struct __make_tuple_types
{
static_assert(_Sp <= _Ep, "__make_tuple_types input error");
using _RawTp = typename remove_cv<typename remove_reference<_Tp>::type>::type;
using _Maker = __make_tuple_types_flat<_RawTp, typename __make_tuple_indices<_Ep, _Sp>::type>;
using type = typename _Maker::template __apply_quals<_Tp>;
};
template <class ..._Types, size_t _Ep>
struct __make_tuple_types<tuple<_Types...>, _Ep, 0, true> {
typedef _LIBCPP_NODEBUG_TYPE __tuple_types<_Types...> type;
};
template <class ..._Types, size_t _Ep>
struct __make_tuple_types<__tuple_types<_Types...>, _Ep, 0, true> {
typedef _LIBCPP_NODEBUG_TYPE __tuple_types<_Types...> type;
};
template <bool ..._Preds>
struct __all_dummy;
template <bool ..._Pred>
using __all = _IsSame<__all_dummy<_Pred...>, __all_dummy<((void)_Pred, true)...>>;
struct __tuple_sfinae_base {
template <template <class, class...> class _Trait,
class ..._LArgs, class ..._RArgs>
static auto __do_test(__tuple_types<_LArgs...>, __tuple_types<_RArgs...>)
-> __all<typename enable_if<_Trait<_LArgs, _RArgs>::value, bool>::type{true}...>;
template <template <class...> class>
static auto __do_test(...) -> false_type;
template <class _FromArgs, class _ToArgs>
using __constructible = decltype(__do_test<is_constructible>(_ToArgs{}, _FromArgs{}));
template <class _FromArgs, class _ToArgs>
using __convertible = decltype(__do_test<is_convertible>(_FromArgs{}, _ToArgs{}));
template <class _FromArgs, class _ToArgs>
using __assignable = decltype(__do_test<is_assignable>(_ToArgs{}, _FromArgs{}));
};
// __tuple_convertible
template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value,
bool = __tuple_like<_Up>::value>
struct __tuple_convertible
: public false_type {};
template <class _Tp, class _Up>
struct __tuple_convertible<_Tp, _Up, true, true>
: public __tuple_sfinae_base::__convertible<
typename __make_tuple_types<_Tp>::type
, typename __make_tuple_types<_Up>::type
>
{};
// __tuple_constructible
template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value,
bool = __tuple_like<_Up>::value>
struct __tuple_constructible
: public false_type {};
template <class _Tp, class _Up>
struct __tuple_constructible<_Tp, _Up, true, true>
: public __tuple_sfinae_base::__constructible<
typename __make_tuple_types<_Tp>::type
, typename __make_tuple_types<_Up>::type
>
{};
// __tuple_assignable
template <class _Tp, class _Up, bool = __tuple_like<typename remove_reference<_Tp>::type>::value,
bool = __tuple_like<_Up>::value>
struct __tuple_assignable
: public false_type {};
template <class _Tp, class _Up>
struct __tuple_assignable<_Tp, _Up, true, true>
: public __tuple_sfinae_base::__assignable<
typename __make_tuple_types<_Tp>::type
, typename __make_tuple_types<_Up&>::type
>
{};
template <size_t _Ip, class ..._Tp>
struct _LIBCPP_TEMPLATE_VIS tuple_element<_Ip, tuple<_Tp...> >
{
typedef _LIBCPP_NODEBUG_TYPE typename tuple_element<_Ip, __tuple_types<_Tp...> >::type type;
};
#if _LIBCPP_STD_VER > 11
template <size_t _Ip, class ..._Tp>
using tuple_element_t _LIBCPP_NODEBUG_TYPE = typename tuple_element <_Ip, _Tp...>::type;
#endif
template <bool _IsTuple, class _SizeTrait, size_t _Expected>
struct __tuple_like_with_size_imp : false_type {};
template <class _SizeTrait, size_t _Expected>
struct __tuple_like_with_size_imp<true, _SizeTrait, _Expected>
: integral_constant<bool, _SizeTrait::value == _Expected> {};
template <class _Tuple, size_t _ExpectedSize,
class _RawTuple = typename __uncvref<_Tuple>::type>
using __tuple_like_with_size _LIBCPP_NODEBUG_TYPE = __tuple_like_with_size_imp<
__tuple_like<_RawTuple>::value,
tuple_size<_RawTuple>, _ExpectedSize
>;
struct _LIBCPP_TYPE_VIS __check_tuple_constructor_fail {
static constexpr bool __enable_explicit_default() { return false; }
static constexpr bool __enable_implicit_default() { return false; }
template <class ...>
static constexpr bool __enable_explicit() { return false; }
template <class ...>
static constexpr bool __enable_implicit() { return false; }
template <class ...>
static constexpr bool __enable_assign() { return false; }
};
#endif // !defined(_LIBCPP_CXX03_LANG)
#if _LIBCPP_STD_VER > 14
template <bool _CanCopy, bool _CanMove>
struct __sfinae_ctor_base {};
template <>
struct __sfinae_ctor_base<false, false> {
__sfinae_ctor_base() = default;
__sfinae_ctor_base(__sfinae_ctor_base const&) = delete;
__sfinae_ctor_base(__sfinae_ctor_base &&) = delete;
__sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default;
__sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default;
};
template <>
struct __sfinae_ctor_base<true, false> {
__sfinae_ctor_base() = default;
__sfinae_ctor_base(__sfinae_ctor_base const&) = default;
__sfinae_ctor_base(__sfinae_ctor_base &&) = delete;
__sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default;
__sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default;
};
template <>
struct __sfinae_ctor_base<false, true> {
__sfinae_ctor_base() = default;
__sfinae_ctor_base(__sfinae_ctor_base const&) = delete;
__sfinae_ctor_base(__sfinae_ctor_base &&) = default;
__sfinae_ctor_base& operator=(__sfinae_ctor_base const&) = default;
__sfinae_ctor_base& operator=(__sfinae_ctor_base&&) = default;
};
template <bool _CanCopy, bool _CanMove>
struct __sfinae_assign_base {};
template <>
struct __sfinae_assign_base<false, false> {
__sfinae_assign_base() = default;
__sfinae_assign_base(__sfinae_assign_base const&) = default;
__sfinae_assign_base(__sfinae_assign_base &&) = default;
__sfinae_assign_base& operator=(__sfinae_assign_base const&) = delete;
__sfinae_assign_base& operator=(__sfinae_assign_base&&) = delete;
};
template <>
struct __sfinae_assign_base<true, false> {
__sfinae_assign_base() = default;
__sfinae_assign_base(__sfinae_assign_base const&) = default;
__sfinae_assign_base(__sfinae_assign_base &&) = default;
__sfinae_assign_base& operator=(__sfinae_assign_base const&) = default;
__sfinae_assign_base& operator=(__sfinae_assign_base&&) = delete;
};
template <>
struct __sfinae_assign_base<false, true> {
__sfinae_assign_base() = default;
__sfinae_assign_base(__sfinae_assign_base const&) = default;
__sfinae_assign_base(__sfinae_assign_base &&) = default;
__sfinae_assign_base& operator=(__sfinae_assign_base const&) = delete;
__sfinae_assign_base& operator=(__sfinae_assign_base&&) = default;
};
#endif // _LIBCPP_STD_VER > 14
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___TUPLE

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// -*- C++ -*-
//===------------------------ __undef_macros ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifdef min
#if !defined(_LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS)
#if defined(_LIBCPP_WARNING)
_LIBCPP_WARNING("macro min is incompatible with C++. Try #define NOMINMAX "
"before any Windows header. #undefing min")
#else
#warning: macro min is incompatible with C++. #undefing min
#endif
#endif
#undef min
#endif
#ifdef max
#if !defined(_LIBCPP_DISABLE_MACRO_CONFLICT_WARNINGS)
#if defined(_LIBCPP_WARNING)
_LIBCPP_WARNING("macro max is incompatible with C++. Try #define NOMINMAX "
"before any Windows header. #undefing max")
#else
#warning: macro max is incompatible with C++. #undefing max
#endif
#endif
#undef max
#endif

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// clang-format off
//===----------------------- algorithm.cpp --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/algorithm"
#include "third_party/libcxx/random"
#ifndef _LIBCPP_HAS_NO_THREADS
#include "third_party/libcxx/mutex"
#if defined(__unix__) && !defined(__ANDROID__) && defined(__ELF__) && defined(_LIBCPP_HAS_COMMENT_LIB_PRAGMA)
#pragma comment(lib, "pthread")
#endif
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template void __sort<__less<char>&, char*>(char*, char*, __less<char>&);
template void __sort<__less<wchar_t>&, wchar_t*>(wchar_t*, wchar_t*, __less<wchar_t>&);
template void __sort<__less<signed char>&, signed char*>(signed char*, signed char*, __less<signed char>&);
template void __sort<__less<unsigned char>&, unsigned char*>(unsigned char*, unsigned char*, __less<unsigned char>&);
template void __sort<__less<short>&, short*>(short*, short*, __less<short>&);
template void __sort<__less<unsigned short>&, unsigned short*>(unsigned short*, unsigned short*, __less<unsigned short>&);
template void __sort<__less<int>&, int*>(int*, int*, __less<int>&);
template void __sort<__less<unsigned>&, unsigned*>(unsigned*, unsigned*, __less<unsigned>&);
template void __sort<__less<long>&, long*>(long*, long*, __less<long>&);
template void __sort<__less<unsigned long>&, unsigned long*>(unsigned long*, unsigned long*, __less<unsigned long>&);
template void __sort<__less<long long>&, long long*>(long long*, long long*, __less<long long>&);
template void __sort<__less<unsigned long long>&, unsigned long long*>(unsigned long long*, unsigned long long*, __less<unsigned long long>&);
template void __sort<__less<float>&, float*>(float*, float*, __less<float>&);
template void __sort<__less<double>&, double*>(double*, double*, __less<double>&);
template void __sort<__less<long double>&, long double*>(long double*, long double*, __less<long double>&);
template bool __insertion_sort_incomplete<__less<char>&, char*>(char*, char*, __less<char>&);
template bool __insertion_sort_incomplete<__less<wchar_t>&, wchar_t*>(wchar_t*, wchar_t*, __less<wchar_t>&);
template bool __insertion_sort_incomplete<__less<signed char>&, signed char*>(signed char*, signed char*, __less<signed char>&);
template bool __insertion_sort_incomplete<__less<unsigned char>&, unsigned char*>(unsigned char*, unsigned char*, __less<unsigned char>&);
template bool __insertion_sort_incomplete<__less<short>&, short*>(short*, short*, __less<short>&);
template bool __insertion_sort_incomplete<__less<unsigned short>&, unsigned short*>(unsigned short*, unsigned short*, __less<unsigned short>&);
template bool __insertion_sort_incomplete<__less<int>&, int*>(int*, int*, __less<int>&);
template bool __insertion_sort_incomplete<__less<unsigned>&, unsigned*>(unsigned*, unsigned*, __less<unsigned>&);
template bool __insertion_sort_incomplete<__less<long>&, long*>(long*, long*, __less<long>&);
template bool __insertion_sort_incomplete<__less<unsigned long>&, unsigned long*>(unsigned long*, unsigned long*, __less<unsigned long>&);
template bool __insertion_sort_incomplete<__less<long long>&, long long*>(long long*, long long*, __less<long long>&);
template bool __insertion_sort_incomplete<__less<unsigned long long>&, unsigned long long*>(unsigned long long*, unsigned long long*, __less<unsigned long long>&);
template bool __insertion_sort_incomplete<__less<float>&, float*>(float*, float*, __less<float>&);
template bool __insertion_sort_incomplete<__less<double>&, double*>(double*, double*, __less<double>&);
template bool __insertion_sort_incomplete<__less<long double>&, long double*>(long double*, long double*, __less<long double>&);
template unsigned __sort5<__less<long double>&, long double*>(long double*, long double*, long double*, long double*, long double*, __less<long double>&);
#ifndef _LIBCPP_HAS_NO_THREADS
_LIBCPP_SAFE_STATIC static __libcpp_mutex_t __rs_mut = _LIBCPP_MUTEX_INITIALIZER;
#endif
unsigned __rs_default::__c_ = 0;
__rs_default::__rs_default()
{
#ifndef _LIBCPP_HAS_NO_THREADS
__libcpp_mutex_lock(&__rs_mut);
#endif
__c_ = 1;
}
__rs_default::__rs_default(const __rs_default&)
{
++__c_;
}
__rs_default::~__rs_default()
{
#ifndef _LIBCPP_HAS_NO_THREADS
if (--__c_ == 0)
__libcpp_mutex_unlock(&__rs_mut);
#else
--__c_;
#endif
}
__rs_default::result_type
__rs_default::operator()()
{
static mt19937 __rs_g;
return __rs_g();
}
__rs_default
__rs_get()
{
return __rs_default();
}
_LIBCPP_END_NAMESPACE_STD

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//===----------------------------------------------------------------------===////
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===////
#ifndef ATOMIC_SUPPORT_H
#define ATOMIC_SUPPORT_H
#include "third_party/libcxx/__config"
#include "third_party/libcxx/memory" // for __libcpp_relaxed_load
#if defined(__clang__) && __has_builtin(__atomic_load_n) && \
__has_builtin(__atomic_store_n) && __has_builtin(__atomic_add_fetch) && \
__has_builtin(__atomic_exchange_n) && \
__has_builtin(__atomic_compare_exchange_n) && defined(__ATOMIC_RELAXED) && \
defined(__ATOMIC_CONSUME) && defined(__ATOMIC_ACQUIRE) && \
defined(__ATOMIC_RELEASE) && defined(__ATOMIC_ACQ_REL) && \
defined(__ATOMIC_SEQ_CST)
#define _LIBCPP_HAS_ATOMIC_BUILTINS
#elif !defined(__clang__) && defined(_GNUC_VER) && _GNUC_VER >= 407
#define _LIBCPP_HAS_ATOMIC_BUILTINS
#endif
#if !defined(_LIBCPP_HAS_ATOMIC_BUILTINS) && !defined(_LIBCPP_HAS_NO_THREADS)
#if defined(_LIBCPP_WARNING)
_LIBCPP_WARNING("Building libc++ without __atomic builtins is unsupported")
#else
#warning Building libc++ without __atomic builtins is unsupported
#endif
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace {
#if defined(_LIBCPP_HAS_ATOMIC_BUILTINS) && !defined(_LIBCPP_HAS_NO_THREADS)
enum __libcpp_atomic_order {
_AO_Relaxed = __ATOMIC_RELAXED,
_AO_Consume = __ATOMIC_CONSUME,
_AO_Acquire = __ATOMIC_ACQUIRE,
_AO_Release = __ATOMIC_RELEASE,
_AO_Acq_Rel = __ATOMIC_ACQ_REL,
_AO_Seq = __ATOMIC_SEQ_CST
};
template <class _ValueType, class _FromType>
inline _LIBCPP_INLINE_VISIBILITY void
__libcpp_atomic_store(_ValueType* __dest, _FromType __val,
int __order = _AO_Seq) {
__atomic_store_n(__dest, __val, __order);
}
template <class _ValueType, class _FromType>
inline _LIBCPP_INLINE_VISIBILITY void __libcpp_relaxed_store(_ValueType* __dest,
_FromType __val) {
__atomic_store_n(__dest, __val, _AO_Relaxed);
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType
__libcpp_atomic_load(_ValueType const* __val, int __order = _AO_Seq) {
return __atomic_load_n(__val, __order);
}
template <class _ValueType, class _AddType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType
__libcpp_atomic_add(_ValueType* __val, _AddType __a, int __order = _AO_Seq) {
return __atomic_add_fetch(__val, __a, __order);
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType __libcpp_atomic_exchange(
_ValueType* __target, _ValueType __value, int __order = _AO_Seq) {
return __atomic_exchange_n(__target, __value, __order);
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY bool __libcpp_atomic_compare_exchange(
_ValueType* __val, _ValueType* __expected, _ValueType __after,
int __success_order = _AO_Seq, int __fail_order = _AO_Seq) {
return __atomic_compare_exchange_n(__val, __expected, __after, true,
__success_order, __fail_order);
}
#else // _LIBCPP_HAS_NO_THREADS
enum __libcpp_atomic_order {
_AO_Relaxed,
_AO_Consume,
_AO_Acquire,
_AO_Release,
_AO_Acq_Rel,
_AO_Seq
};
template <class _ValueType, class _FromType>
inline _LIBCPP_INLINE_VISIBILITY void
__libcpp_atomic_store(_ValueType* __dest, _FromType __val, int = 0) {
*__dest = __val;
}
template <class _ValueType, class _FromType>
inline _LIBCPP_INLINE_VISIBILITY void __libcpp_relaxed_store(_ValueType* __dest,
_FromType __val) {
*__dest = __val;
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType
__libcpp_atomic_load(_ValueType const* __val, int = 0) {
return *__val;
}
template <class _ValueType, class _AddType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType
__libcpp_atomic_add(_ValueType* __val, _AddType __a, int = 0) {
return *__val += __a;
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY _ValueType __libcpp_atomic_exchange(
_ValueType* __target, _ValueType __value, int __order = _AO_Seq) {
_ValueType old = *__target;
*__target = __value;
return old;
}
template <class _ValueType>
inline _LIBCPP_INLINE_VISIBILITY bool
__libcpp_atomic_compare_exchange(_ValueType* __val, _ValueType* __expected,
_ValueType __after, int = 0, int = 0) {
if (*__val == *__expected) {
*__val = __after;
return true;
}
*__expected = *__val;
return false;
}
#endif // _LIBCPP_HAS_NO_THREADS
} // end namespace
_LIBCPP_END_NAMESPACE_STD
#endif // ATOMIC_SUPPORT_H

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// -*- C++ -*-
//===------------------------------ bit ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
#ifndef _LIBCPP_BIT
#define _LIBCPP_BIT
/*
bit synopsis
namespace std {
template <class T>
constexpr bool ispow2(T x) noexcept; // C++20
template <class T>
constexpr T ceil2(T x); // C++20
template <class T>
constexpr T floor2(T x) noexcept; // C++20
template <class T>
constexpr T log2p1(T x) noexcept; // C++20
// 23.20.2, rotating
template<class T>
constexpr T rotl(T x, unsigned int s) noexcept; // C++20
template<class T>
constexpr T rotr(T x, unsigned int s) noexcept; // C++20
// 23.20.3, counting
template<class T>
constexpr int countl_zero(T x) noexcept; // C++20
template<class T>
constexpr int countl_one(T x) noexcept; // C++20
template<class T>
constexpr int countr_zero(T x) noexcept; // C++20
template<class T>
constexpr int countr_one(T x) noexcept; // C++20
template<class T>
constexpr int popcount(T x) noexcept; // C++20
// 20.15.9, endian
enum class endian {
little = see below, // C++20
big = see below, // C++20
native = see below // C++20
};
} // namespace std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/limits"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/version"
#include "third_party/libcxx/__debug"
#if defined(__IBMCPP__)
#include "support/ibm/support.h"
#endif
#if defined(_LIBCPP_COMPILER_MSVC)
#include "third_party/libcxx/intrin.h"
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_COMPILER_MSVC
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned __x) _NOEXCEPT { return __builtin_ctz(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned long __x) _NOEXCEPT { return __builtin_ctzl(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_ctz(unsigned long long __x) _NOEXCEPT { return __builtin_ctzll(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned __x) _NOEXCEPT { return __builtin_clz(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned long __x) _NOEXCEPT { return __builtin_clzl(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_clz(unsigned long long __x) _NOEXCEPT { return __builtin_clzll(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_popcount(unsigned __x) _NOEXCEPT { return __builtin_popcount(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_popcount(unsigned long __x) _NOEXCEPT { return __builtin_popcountl(__x); }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
int __libcpp_popcount(unsigned long long __x) _NOEXCEPT { return __builtin_popcountll(__x); }
#else // _LIBCPP_COMPILER_MSVC
// Precondition: __x != 0
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_ctz(unsigned __x) {
static_assert(sizeof(unsigned) == sizeof(unsigned long), "");
static_assert(sizeof(unsigned long) == 4, "");
unsigned long __where;
if (_BitScanForward(&__where, __x))
return static_cast<int>(__where);
return 32;
}
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_ctz(unsigned long __x) {
static_assert(sizeof(unsigned long) == sizeof(unsigned), "");
return __ctz(static_cast<unsigned>(__x));
}
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_ctz(unsigned long long __x) {
unsigned long __where;
#if defined(_LIBCPP_HAS_BITSCAN64)
(defined(_M_AMD64) || defined(__x86_64__))
if (_BitScanForward64(&__where, __x))
return static_cast<int>(__where);
#else
// Win32 doesn't have _BitScanForward64 so emulate it with two 32 bit calls.
if (_BitScanForward(&__where, static_cast<unsigned long>(__x)))
return static_cast<int>(__where);
if (_BitScanForward(&__where, static_cast<unsigned long>(__x >> 32)))
return static_cast<int>(__where + 32);
#endif
return 64;
}
// Precondition: __x != 0
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_clz(unsigned __x) {
static_assert(sizeof(unsigned) == sizeof(unsigned long), "");
static_assert(sizeof(unsigned long) == 4, "");
unsigned long __where;
if (_BitScanReverse(&__where, __x))
return static_cast<int>(31 - __where);
return 32; // Undefined Behavior.
}
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_clz(unsigned long __x) {
static_assert(sizeof(unsigned) == sizeof(unsigned long), "");
return __libcpp_clz(static_cast<unsigned>(__x));
}
inline _LIBCPP_INLINE_VISIBILITY
int __libcpp_clz(unsigned long long __x) {
unsigned long __where;
#if defined(_LIBCPP_HAS_BITSCAN64)
if (_BitScanReverse64(&__where, __x))
return static_cast<int>(63 - __where);
#else
// Win32 doesn't have _BitScanReverse64 so emulate it with two 32 bit calls.
if (_BitScanReverse(&__where, static_cast<unsigned long>(__x >> 32)))
return static_cast<int>(63 - (__where + 32));
if (_BitScanReverse(&__where, static_cast<unsigned long>(__x)))
return static_cast<int>(63 - __where);
#endif
return 64; // Undefined Behavior.
}
inline _LIBCPP_INLINE_VISIBILITY int __libcpp_popcount(unsigned __x) {
static_assert(sizeof(unsigned) == 4, "");
return __popcnt(__x);
}
inline _LIBCPP_INLINE_VISIBILITY int __libcpp_popcount(unsigned long __x) {
static_assert(sizeof(unsigned long) == 4, "");
return __popcnt(__x);
}
inline _LIBCPP_INLINE_VISIBILITY int __libcpp_popcount(unsigned long long __x) {
static_assert(sizeof(unsigned long long) == 8, "");
return __popcnt64(__x);
}
#endif // _LIBCPP_COMPILER_MSVC
template <class _Tp>
using __bitop_unsigned_integer _LIBCPP_NODEBUG_TYPE = integral_constant<bool,
is_integral<_Tp>::value &&
is_unsigned<_Tp>::value &&
_IsNotSame<typename remove_cv<_Tp>::type, bool>::value &&
_IsNotSame<typename remove_cv<_Tp>::type, signed char>::value &&
_IsNotSame<typename remove_cv<_Tp>::type, wchar_t>::value &&
_IsNotSame<typename remove_cv<_Tp>::type, char16_t>::value &&
_IsNotSame<typename remove_cv<_Tp>::type, char32_t>::value
>;
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp __rotl(_Tp __t, unsigned int __cnt) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__rotl requires unsigned");
const unsigned int __dig = numeric_limits<_Tp>::digits;
if ((__cnt % __dig) == 0)
return __t;
return (__t << (__cnt % __dig)) | (__t >> (__dig - (__cnt % __dig)));
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp __rotr(_Tp __t, unsigned int __cnt) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__rotr requires unsigned");
const unsigned int __dig = numeric_limits<_Tp>::digits;
if ((__cnt % __dig) == 0)
return __t;
return (__t >> (__cnt % __dig)) | (__t << (__dig - (__cnt % __dig)));
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
int __countr_zero(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__countr_zero requires unsigned");
if (__t == 0)
return numeric_limits<_Tp>::digits;
if (sizeof(_Tp) <= sizeof(unsigned int))
return __libcpp_ctz(static_cast<unsigned int>(__t));
else if (sizeof(_Tp) <= sizeof(unsigned long))
return __libcpp_ctz(static_cast<unsigned long>(__t));
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return __libcpp_ctz(static_cast<unsigned long long>(__t));
else
{
int __ret = 0;
int __iter = 0;
const unsigned int __ulldigits = numeric_limits<unsigned long long>::digits;
while ((__iter = __libcpp_ctz(static_cast<unsigned long long>(__t))) == __ulldigits)
{
__ret += __iter;
__t >>= __ulldigits;
}
return __ret + __iter;
}
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
int __countl_zero(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__countl_zero requires unsigned");
if (__t == 0)
return numeric_limits<_Tp>::digits;
if (sizeof(_Tp) <= sizeof(unsigned int))
return __libcpp_clz(static_cast<unsigned int>(__t))
- (numeric_limits<unsigned int>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long))
return __libcpp_clz(static_cast<unsigned long>(__t))
- (numeric_limits<unsigned long>::digits - numeric_limits<_Tp>::digits);
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return __libcpp_clz(static_cast<unsigned long long>(__t))
- (numeric_limits<unsigned long long>::digits - numeric_limits<_Tp>::digits);
else
{
int __ret = 0;
int __iter = 0;
const unsigned int __ulldigits = numeric_limits<unsigned long long>::digits;
while (true) {
__t = __rotr(__t, __ulldigits);
if ((__iter = __countl_zero(static_cast<unsigned long long>(__t))) != __ulldigits)
break;
__ret += __iter;
}
return __ret + __iter;
}
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
int __countl_one(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__countl_one requires unsigned");
return __t != numeric_limits<_Tp>::max()
? __countl_zero(static_cast<_Tp>(~__t))
: numeric_limits<_Tp>::digits;
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
int __countr_one(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__countr_one requires unsigned");
return __t != numeric_limits<_Tp>::max()
? __countr_zero(static_cast<_Tp>(~__t))
: numeric_limits<_Tp>::digits;
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
int
__popcount(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__libcpp_popcount requires unsigned");
if (sizeof(_Tp) <= sizeof(unsigned int))
return __libcpp_popcount(static_cast<unsigned int>(__t));
else if (sizeof(_Tp) <= sizeof(unsigned long))
return __libcpp_popcount(static_cast<unsigned long>(__t));
else if (sizeof(_Tp) <= sizeof(unsigned long long))
return __libcpp_popcount(static_cast<unsigned long long>(__t));
else
{
int __ret = 0;
while (__t != 0)
{
__ret += __libcpp_popcount(static_cast<unsigned long long>(__t));
__t >>= numeric_limits<unsigned long long>::digits;
}
return __ret;
}
}
// integral log base 2
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
unsigned __bit_log2(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__bit_log2 requires unsigned");
return std::numeric_limits<_Tp>::digits - 1 - __countl_zero(__t);
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool __ispow2(_Tp __t) _NOEXCEPT
{
static_assert(__bitop_unsigned_integer<_Tp>::value, "__ispow2 requires unsigned");
return __t != 0 && (((__t & (__t - 1)) == 0));
}
#if _LIBCPP_STD_VER > 17
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, _Tp>
rotl(_Tp __t, unsigned int __cnt) noexcept
{
return __rotl(__t, __cnt);
}
// rotr
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, _Tp>
rotr(_Tp __t, unsigned int __cnt) noexcept
{
return __rotr(__t, __cnt);
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, int>
countl_zero(_Tp __t) noexcept
{
return __countl_zero(__t);
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, int>
countl_one(_Tp __t) noexcept
{
return __countl_one(__t);
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, int>
countr_zero(_Tp __t) noexcept
{
return __countr_zero(__t);
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, int>
countr_one(_Tp __t) noexcept
{
return __countr_one(__t);
}
template<class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, int>
popcount(_Tp __t) noexcept
{
return __popcount(__t);
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, bool>
ispow2(_Tp __t) noexcept
{
return __ispow2(__t);
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, _Tp>
floor2(_Tp __t) noexcept
{
return __t == 0 ? 0 : _Tp{1} << __bit_log2(__t);
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, _Tp>
ceil2(_Tp __t) noexcept
{
if (__t < 2) return 1;
const unsigned __n = numeric_limits<_Tp>::digits - countl_zero((_Tp)(__t - 1u));
_LIBCPP_DEBUG_ASSERT(__libcpp_is_constant_evaluated() || __n != numeric_limits<_Tp>::digits, "Bad input to ceil2");
if constexpr (sizeof(_Tp) >= sizeof(unsigned))
return _Tp{1} << __n;
else
{
const unsigned __extra = numeric_limits<unsigned>::digits - numeric_limits<_Tp>::digits;
const unsigned __retVal = 1u << (__n + __extra);
return (_Tp) (__retVal >> __extra);
}
}
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<__bitop_unsigned_integer<_Tp>::value, _Tp>
log2p1(_Tp __t) noexcept
{
return __t == 0 ? 0 : __bit_log2(__t) + 1;
}
enum class endian
{
little = 0xDEAD,
big = 0xFACE,
#if defined(_LIBCPP_LITTLE_ENDIAN)
native = little
#elif defined(_LIBCPP_BIG_ENDIAN)
native = big
#else
native = 0xCAFE
#endif
};
#endif // _LIBCPP_STD_VER > 17
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_BIT

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// -*- C++ -*-
//===-------------------------- cassert -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
/*
cassert synopsis
Macros:
assert
*/
#include "third_party/libcxx/__config"
#include "libc/assert.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif

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// -*- C++ -*-
//===---------------------------- cctype ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CCTYPE
#define _LIBCPP_CCTYPE
/*
cctype synopsis
namespace std
{
int isalnum(int c);
int isalpha(int c);
int isblank(int c); // C99
int iscntrl(int c);
int isdigit(int c);
int isgraph(int c);
int islower(int c);
int isprint(int c);
int ispunct(int c);
int isspace(int c);
int isupper(int c);
int isxdigit(int c);
int tolower(int c);
int toupper(int c);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/ctype.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#ifdef isalnum
#undef isalnum
#endif
#ifdef isalpha
#undef isalpha
#endif
#ifdef isblank
#undef isblank
#endif
#ifdef iscntrl
#undef iscntrl
#endif
#ifdef isdigit
#undef isdigit
#endif
#ifdef isgraph
#undef isgraph
#endif
#ifdef islower
#undef islower
#endif
#ifdef isprint
#undef isprint
#endif
#ifdef ispunct
#undef ispunct
#endif
#ifdef isspace
#undef isspace
#endif
#ifdef isupper
#undef isupper
#endif
#ifdef isxdigit
#undef isxdigit
#endif
#ifdef tolower
#undef tolower
#endif
#ifdef toupper
#undef toupper
#endif
using ::isalnum;
using ::isalpha;
using ::isblank;
using ::iscntrl;
using ::isdigit;
using ::isgraph;
using ::islower;
using ::isprint;
using ::ispunct;
using ::isspace;
using ::isupper;
using ::isxdigit;
using ::tolower;
using ::toupper;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CCTYPE

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// -*- C++ -*-
//===-------------------------- cerrno ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CERRNO
#define _LIBCPP_CERRNO
/*
cerrno synopsis
Macros:
EDOM
EILSEQ // C99
ERANGE
errno
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/errno.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#endif // _LIBCPP_CERRNO

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// -*- C++ -*-
//===------------------------------ charconv ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CHARCONV
#define _LIBCPP_CHARCONV
/*
charconv synopsis
namespace std {
// floating-point format for primitive numerical conversion
enum class chars_format {
scientific = unspecified,
fixed = unspecified,
hex = unspecified,
general = fixed | scientific
};
// 23.20.2, primitive numerical output conversion
struct to_chars_result {
char* ptr;
errc ec;
};
to_chars_result to_chars(char* first, char* last, see below value,
int base = 10);
to_chars_result to_chars(char* first, char* last, float value);
to_chars_result to_chars(char* first, char* last, double value);
to_chars_result to_chars(char* first, char* last, long double value);
to_chars_result to_chars(char* first, char* last, float value,
chars_format fmt);
to_chars_result to_chars(char* first, char* last, double value,
chars_format fmt);
to_chars_result to_chars(char* first, char* last, long double value,
chars_format fmt);
to_chars_result to_chars(char* first, char* last, float value,
chars_format fmt, int precision);
to_chars_result to_chars(char* first, char* last, double value,
chars_format fmt, int precision);
to_chars_result to_chars(char* first, char* last, long double value,
chars_format fmt, int precision);
// 23.20.3, primitive numerical input conversion
struct from_chars_result {
const char* ptr;
errc ec;
};
from_chars_result from_chars(const char* first, const char* last,
see below& value, int base = 10);
from_chars_result from_chars(const char* first, const char* last,
float& value,
chars_format fmt = chars_format::general);
from_chars_result from_chars(const char* first, const char* last,
double& value,
chars_format fmt = chars_format::general);
from_chars_result from_chars(const char* first, const char* last,
long double& value,
chars_format fmt = chars_format::general);
} // namespace std
*/
#include "third_party/libcxx/__errc"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/limits"
#include "third_party/libcxx/string.h"
#include "libc/literal.h"
#include "third_party/libcxx/math.h"
#include "third_party/libcxx/__debug"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
namespace __itoa {
_LIBCPP_FUNC_VIS char* __u64toa(uint64_t __value, char* __buffer);
_LIBCPP_FUNC_VIS char* __u32toa(uint32_t __value, char* __buffer);
}
#ifndef _LIBCPP_CXX03_LANG
enum class _LIBCPP_ENUM_VIS chars_format
{
scientific = 0x1,
fixed = 0x2,
hex = 0x4,
general = fixed | scientific
};
struct _LIBCPP_TYPE_VIS to_chars_result
{
char* ptr;
errc ec;
};
struct _LIBCPP_TYPE_VIS from_chars_result
{
const char* ptr;
errc ec;
};
void to_chars(char*, char*, bool, int = 10) = delete;
void from_chars(const char*, const char*, bool, int = 10) = delete;
namespace __itoa
{
static _LIBCPP_CONSTEXPR uint64_t __pow10_64[] = {
UINT64_C(0),
UINT64_C(10),
UINT64_C(100),
UINT64_C(1000),
UINT64_C(10000),
UINT64_C(100000),
UINT64_C(1000000),
UINT64_C(10000000),
UINT64_C(100000000),
UINT64_C(1000000000),
UINT64_C(10000000000),
UINT64_C(100000000000),
UINT64_C(1000000000000),
UINT64_C(10000000000000),
UINT64_C(100000000000000),
UINT64_C(1000000000000000),
UINT64_C(10000000000000000),
UINT64_C(100000000000000000),
UINT64_C(1000000000000000000),
UINT64_C(10000000000000000000),
};
static _LIBCPP_CONSTEXPR uint32_t __pow10_32[] = {
UINT32_C(0), UINT32_C(10), UINT32_C(100),
UINT32_C(1000), UINT32_C(10000), UINT32_C(100000),
UINT32_C(1000000), UINT32_C(10000000), UINT32_C(100000000),
UINT32_C(1000000000),
};
template <typename _Tp, typename = void>
struct _LIBCPP_HIDDEN __traits_base
{
using type = uint64_t;
#if !defined(_LIBCPP_COMPILER_MSVC)
static _LIBCPP_INLINE_VISIBILITY int __width(_Tp __v)
{
auto __t = (64 - __builtin_clzll(__v | 1)) * 1233 >> 12;
return __t - (__v < __pow10_64[__t]) + 1;
}
#endif
static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p)
{
return __u64toa(__v, __p);
}
static _LIBCPP_INLINE_VISIBILITY decltype(__pow10_64)& __pow() { return __pow10_64; }
};
template <typename _Tp>
struct _LIBCPP_HIDDEN
__traits_base<_Tp, decltype(void(uint32_t{declval<_Tp>()}))>
{
using type = uint32_t;
#if !defined(_LIBCPP_COMPILER_MSVC)
static _LIBCPP_INLINE_VISIBILITY int __width(_Tp __v)
{
auto __t = (32 - __builtin_clz(__v | 1)) * 1233 >> 12;
return __t - (__v < __pow10_32[__t]) + 1;
}
#endif
static _LIBCPP_INLINE_VISIBILITY char* __convert(_Tp __v, char* __p)
{
return __u32toa(__v, __p);
}
static _LIBCPP_INLINE_VISIBILITY decltype(__pow10_32)& __pow() { return __pow10_32; }
};
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY bool
__mul_overflowed(unsigned char __a, _Tp __b, unsigned char& __r)
{
auto __c = __a * __b;
__r = __c;
return __c > (numeric_limits<unsigned char>::max)();
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY bool
__mul_overflowed(unsigned short __a, _Tp __b, unsigned short& __r)
{
auto __c = __a * __b;
__r = __c;
return __c > (numeric_limits<unsigned short>::max)();
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY bool
__mul_overflowed(_Tp __a, _Tp __b, _Tp& __r)
{
static_assert(is_unsigned<_Tp>::value, "");
#if !defined(_LIBCPP_COMPILER_MSVC)
return __builtin_mul_overflow(__a, __b, &__r);
#else
bool __did = __b && ((numeric_limits<_Tp>::max)() / __b) < __a;
__r = __a * __b;
return __did;
#endif
}
template <typename _Tp, typename _Up>
inline _LIBCPP_INLINE_VISIBILITY bool
__mul_overflowed(_Tp __a, _Up __b, _Tp& __r)
{
return __mul_overflowed(__a, static_cast<_Tp>(__b), __r);
}
template <typename _Tp>
struct _LIBCPP_HIDDEN __traits : __traits_base<_Tp>
{
static _LIBCPP_CONSTEXPR int digits = numeric_limits<_Tp>::digits10 + 1;
using __traits_base<_Tp>::__pow;
using typename __traits_base<_Tp>::type;
// precondition: at least one non-zero character available
static _LIBCPP_INLINE_VISIBILITY char const*
__read(char const* __p, char const* __ep, type& __a, type& __b)
{
type __cprod[digits];
int __j = digits - 1;
int __i = digits;
do
{
if (!('0' <= *__p && *__p <= '9'))
break;
__cprod[--__i] = *__p++ - '0';
} while (__p != __ep && __i != 0);
__a = __inner_product(__cprod + __i + 1, __cprod + __j, __pow() + 1,
__cprod[__i]);
if (__mul_overflowed(__cprod[__j], __pow()[__j - __i], __b))
--__p;
return __p;
}
template <typename _It1, typename _It2, class _Up>
static _LIBCPP_INLINE_VISIBILITY _Up
__inner_product(_It1 __first1, _It1 __last1, _It2 __first2, _Up __init)
{
for (; __first1 < __last1; ++__first1, ++__first2)
__init = __init + *__first1 * *__first2;
return __init;
}
};
} // namespace __itoa
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY _Tp
__complement(_Tp __x)
{
static_assert(is_unsigned<_Tp>::value, "cast to unsigned first");
return _Tp(~__x + 1);
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY typename make_unsigned<_Tp>::type
__to_unsigned(_Tp __x)
{
return static_cast<typename make_unsigned<_Tp>::type>(__x);
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
__to_chars_itoa(char* __first, char* __last, _Tp __value, true_type)
{
auto __x = __to_unsigned(__value);
if (__value < 0 && __first != __last)
{
*__first++ = '-';
__x = __complement(__x);
}
return __to_chars_itoa(__first, __last, __x, false_type());
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
__to_chars_itoa(char* __first, char* __last, _Tp __value, false_type)
{
using __tx = __itoa::__traits<_Tp>;
auto __diff = __last - __first;
#if !defined(_LIBCPP_COMPILER_MSVC)
if (__tx::digits <= __diff || __tx::__width(__value) <= __diff)
return {__tx::__convert(__value, __first), errc(0)};
else
return {__last, errc::value_too_large};
#else
if (__tx::digits <= __diff)
return {__tx::__convert(__value, __first), {}};
else
{
char __buf[__tx::digits];
auto __p = __tx::__convert(__value, __buf);
auto __len = __p - __buf;
if (__len <= __diff)
{
memcpy(__first, __buf, __len);
return {__first + __len, {}};
}
else
return {__last, errc::value_too_large};
}
#endif
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
__to_chars_integral(char* __first, char* __last, _Tp __value, int __base,
true_type)
{
auto __x = __to_unsigned(__value);
if (__value < 0 && __first != __last)
{
*__first++ = '-';
__x = __complement(__x);
}
return __to_chars_integral(__first, __last, __x, __base, false_type());
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
__to_chars_integral(char* __first, char* __last, _Tp __value, int __base,
false_type)
{
if (__base == 10)
return __to_chars_itoa(__first, __last, __value, false_type());
auto __p = __last;
while (__p != __first)
{
auto __c = __value % __base;
__value /= __base;
*--__p = "0123456789abcdefghijklmnopqrstuvwxyz"[__c];
if (__value == 0)
break;
}
auto __len = __last - __p;
if (__value != 0 || !__len)
return {__last, errc::value_too_large};
else
{
memmove(__first, __p, __len);
return {__first + __len, {}};
}
}
template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
to_chars(char* __first, char* __last, _Tp __value)
{
return __to_chars_itoa(__first, __last, __value, is_signed<_Tp>());
}
template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY to_chars_result
to_chars(char* __first, char* __last, _Tp __value, int __base)
{
_LIBCPP_ASSERT(2 <= __base && __base <= 36, "base not in [2, 36]");
return __to_chars_integral(__first, __last, __value, __base,
is_signed<_Tp>());
}
template <typename _It, typename _Tp, typename _Fn, typename... _Ts>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__sign_combinator(_It __first, _It __last, _Tp& __value, _Fn __f, _Ts... __args)
{
using __tl = numeric_limits<_Tp>;
decltype(__to_unsigned(__value)) __x;
bool __neg = (__first != __last && *__first == '-');
auto __r = __f(__neg ? __first + 1 : __first, __last, __x, __args...);
switch (__r.ec)
{
case errc::invalid_argument:
return {__first, __r.ec};
case errc::result_out_of_range:
return __r;
default:
break;
}
if (__neg)
{
if (__x <= __complement(__to_unsigned(__tl::min())))
{
__x = __complement(__x);
memcpy(&__value, &__x, sizeof(__x));
return __r;
}
}
else
{
if (__x <= (__tl::max)())
{
__value = __x;
return __r;
}
}
return {__r.ptr, errc::result_out_of_range};
}
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY bool
__in_pattern(_Tp __c)
{
return '0' <= __c && __c <= '9';
}
struct _LIBCPP_HIDDEN __in_pattern_result
{
bool __ok;
int __val;
explicit _LIBCPP_INLINE_VISIBILITY operator bool() const { return __ok; }
};
template <typename _Tp>
inline _LIBCPP_INLINE_VISIBILITY __in_pattern_result
__in_pattern(_Tp __c, int __base)
{
if (__base <= 10)
return {'0' <= __c && __c < '0' + __base, __c - '0'};
else if (__in_pattern(__c))
return {true, __c - '0'};
else if ('a' <= __c && __c < 'a' + __base - 10)
return {true, __c - 'a' + 10};
else
return {'A' <= __c && __c < 'A' + __base - 10, __c - 'A' + 10};
}
template <typename _It, typename _Tp, typename _Fn, typename... _Ts>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__subject_seq_combinator(_It __first, _It __last, _Tp& __value, _Fn __f,
_Ts... __args)
{
auto __find_non_zero = [](_It __first, _It __last) {
for (; __first != __last; ++__first)
if (*__first != '0')
break;
return __first;
};
auto __p = __find_non_zero(__first, __last);
if (__p == __last || !__in_pattern(*__p, __args...))
{
if (__p == __first)
return {__first, errc::invalid_argument};
else
{
__value = 0;
return {__p, {}};
}
}
auto __r = __f(__p, __last, __value, __args...);
if (__r.ec == errc::result_out_of_range)
{
for (; __r.ptr != __last; ++__r.ptr)
{
if (!__in_pattern(*__r.ptr, __args...))
break;
}
}
return __r;
}
template <typename _Tp, typename enable_if<is_unsigned<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__from_chars_atoi(const char* __first, const char* __last, _Tp& __value)
{
using __tx = __itoa::__traits<_Tp>;
using __output_type = typename __tx::type;
return __subject_seq_combinator(
__first, __last, __value,
[](const char* __first, const char* __last,
_Tp& __value) -> from_chars_result {
__output_type __a, __b;
auto __p = __tx::__read(__first, __last, __a, __b);
if (__p == __last || !__in_pattern(*__p))
{
__output_type __m = (numeric_limits<_Tp>::max)();
if (__m >= __a && __m - __a >= __b)
{
__value = __a + __b;
return {__p, {}};
}
}
return {__p, errc::result_out_of_range};
});
}
template <typename _Tp, typename enable_if<is_signed<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__from_chars_atoi(const char* __first, const char* __last, _Tp& __value)
{
using __t = decltype(__to_unsigned(__value));
return __sign_combinator(__first, __last, __value, __from_chars_atoi<__t>);
}
template <typename _Tp, typename enable_if<is_unsigned<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__from_chars_integral(const char* __first, const char* __last, _Tp& __value,
int __base)
{
if (__base == 10)
return __from_chars_atoi(__first, __last, __value);
return __subject_seq_combinator(
__first, __last, __value,
[](const char* __p, const char* __last, _Tp& __value,
int __base) -> from_chars_result {
using __tl = numeric_limits<_Tp>;
auto __digits = __tl::digits / log2f(float(__base));
_Tp __a = __in_pattern(*__p++, __base).__val, __b = 0;
for (int __i = 1; __p != __last; ++__i, ++__p)
{
if (auto __c = __in_pattern(*__p, __base))
{
if (__i < __digits - 1)
__a = __a * __base + __c.__val;
else
{
if (!__itoa::__mul_overflowed(__a, __base, __a))
++__p;
__b = __c.__val;
break;
}
}
else
break;
}
if (__p == __last || !__in_pattern(*__p, __base))
{
if ((__tl::max)() - __a >= __b)
{
__value = __a + __b;
return {__p, {}};
}
}
return {__p, errc::result_out_of_range};
},
__base);
}
template <typename _Tp, typename enable_if<is_signed<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
__from_chars_integral(const char* __first, const char* __last, _Tp& __value,
int __base)
{
using __t = decltype(__to_unsigned(__value));
return __sign_combinator(__first, __last, __value,
__from_chars_integral<__t>, __base);
}
template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
from_chars(const char* __first, const char* __last, _Tp& __value)
{
return __from_chars_atoi(__first, __last, __value);
}
template <typename _Tp, typename enable_if<is_integral<_Tp>::value, int>::type = 0>
inline _LIBCPP_INLINE_VISIBILITY from_chars_result
from_chars(const char* __first, const char* __last, _Tp& __value, int __base)
{
_LIBCPP_ASSERT(2 <= __base && __base <= 36, "base not in [2, 36]");
return __from_chars_integral(__first, __last, __value, __base);
}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_CHARCONV

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//===------------------------- charconv.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/charconv"
#include "third_party/libcxx/string.h"
_LIBCPP_BEGIN_NAMESPACE_STD
namespace __itoa
{
static constexpr char cDigitsLut[200] = {
'0', '0', '0', '1', '0', '2', '0', '3', '0', '4', '0', '5', '0', '6', '0',
'7', '0', '8', '0', '9', '1', '0', '1', '1', '1', '2', '1', '3', '1', '4',
'1', '5', '1', '6', '1', '7', '1', '8', '1', '9', '2', '0', '2', '1', '2',
'2', '2', '3', '2', '4', '2', '5', '2', '6', '2', '7', '2', '8', '2', '9',
'3', '0', '3', '1', '3', '2', '3', '3', '3', '4', '3', '5', '3', '6', '3',
'7', '3', '8', '3', '9', '4', '0', '4', '1', '4', '2', '4', '3', '4', '4',
'4', '5', '4', '6', '4', '7', '4', '8', '4', '9', '5', '0', '5', '1', '5',
'2', '5', '3', '5', '4', '5', '5', '5', '6', '5', '7', '5', '8', '5', '9',
'6', '0', '6', '1', '6', '2', '6', '3', '6', '4', '6', '5', '6', '6', '6',
'7', '6', '8', '6', '9', '7', '0', '7', '1', '7', '2', '7', '3', '7', '4',
'7', '5', '7', '6', '7', '7', '7', '8', '7', '9', '8', '0', '8', '1', '8',
'2', '8', '3', '8', '4', '8', '5', '8', '6', '8', '7', '8', '8', '8', '9',
'9', '0', '9', '1', '9', '2', '9', '3', '9', '4', '9', '5', '9', '6', '9',
'7', '9', '8', '9', '9'};
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append1(char* buffer, T i)
{
*buffer = '0' + static_cast<char>(i);
return buffer + 1;
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append2(char* buffer, T i)
{
memcpy(buffer, &cDigitsLut[(i)*2], 2);
return buffer + 2;
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append3(char* buffer, T i)
{
return append2(append1(buffer, (i) / 100), (i) % 100);
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append4(char* buffer, T i)
{
return append2(append2(buffer, (i) / 100), (i) % 100);
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append2_no_zeros(char* buffer, T v)
{
if (v < 10)
return append1(buffer, v);
else
return append2(buffer, v);
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append4_no_zeros(char* buffer, T v)
{
if (v < 100)
return append2_no_zeros(buffer, v);
else if (v < 1000)
return append3(buffer, v);
else
return append4(buffer, v);
}
template <typename T>
inline _LIBCPP_INLINE_VISIBILITY char*
append8_no_zeros(char* buffer, T v)
{
if (v < 10000)
{
buffer = append4_no_zeros(buffer, v);
}
else
{
buffer = append4_no_zeros(buffer, v / 10000);
buffer = append4(buffer, v % 10000);
}
return buffer;
}
char*
__u32toa(uint32_t value, char* buffer)
{
if (value < 100000000)
{
buffer = append8_no_zeros(buffer, value);
}
else
{
// value = aabbbbcccc in decimal
const uint32_t a = value / 100000000; // 1 to 42
value %= 100000000;
buffer = append2_no_zeros(buffer, a);
buffer = append4(buffer, value / 10000);
buffer = append4(buffer, value % 10000);
}
return buffer;
}
char*
__u64toa(uint64_t value, char* buffer)
{
if (value < 100000000)
{
uint32_t v = static_cast<uint32_t>(value);
buffer = append8_no_zeros(buffer, v);
}
else if (value < 10000000000000000)
{
const uint32_t v0 = static_cast<uint32_t>(value / 100000000);
const uint32_t v1 = static_cast<uint32_t>(value % 100000000);
buffer = append8_no_zeros(buffer, v0);
buffer = append4(buffer, v1 / 10000);
buffer = append4(buffer, v1 % 10000);
}
else
{
const uint32_t a =
static_cast<uint32_t>(value / 10000000000000000); // 1 to 1844
value %= 10000000000000000;
buffer = append4_no_zeros(buffer, a);
const uint32_t v0 = static_cast<uint32_t>(value / 100000000);
const uint32_t v1 = static_cast<uint32_t>(value % 100000000);
buffer = append4(buffer, v0 / 10000);
buffer = append4(buffer, v0 % 10000);
buffer = append4(buffer, v1 / 10000);
buffer = append4(buffer, v1 % 10000);
}
return buffer;
}
} // namespace __itoa
_LIBCPP_END_NAMESPACE_STD

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// -*- C++ -*-
//===--------------------------- climits ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CLIMITS
#define _LIBCPP_CLIMITS
/*
climits synopsis
Macros:
CHAR_BIT
SCHAR_MIN
SCHAR_MAX
UCHAR_MAX
CHAR_MIN
CHAR_MAX
MB_LEN_MAX
SHRT_MIN
SHRT_MAX
USHRT_MAX
INT_MIN
INT_MAX
UINT_MAX
LONG_MIN
LONG_MAX
ULONG_MAX
LLONG_MIN // C99
LLONG_MAX // C99
ULLONG_MAX // C99
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/limits.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#endif // _LIBCPP_CLIMITS

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// -*- C++ -*-
//===---------------------------- cmath -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CMATH
#define _LIBCPP_CMATH
/*
cmath synopsis
Macros:
HUGE_VAL
HUGE_VALF // C99
HUGE_VALL // C99
INFINITY // C99
NAN // C99
FP_INFINITE // C99
FP_NAN // C99
FP_NORMAL // C99
FP_SUBNORMAL // C99
FP_ZERO // C99
FP_FAST_FMA // C99
FP_FAST_FMAF // C99
FP_FAST_FMAL // C99
FP_ILOGB0 // C99
FP_ILOGBNAN // C99
MATH_ERRNO // C99
MATH_ERREXCEPT // C99
math_errhandling // C99
namespace std
{
Types:
float_t // C99
double_t // C99
// C90
floating_point abs(floating_point x);
floating_point acos (arithmetic x);
float acosf(float x);
long double acosl(long double x);
floating_point asin (arithmetic x);
float asinf(float x);
long double asinl(long double x);
floating_point atan (arithmetic x);
float atanf(float x);
long double atanl(long double x);
floating_point atan2 (arithmetic y, arithmetic x);
float atan2f(float y, float x);
long double atan2l(long double y, long double x);
floating_point ceil (arithmetic x);
float ceilf(float x);
long double ceill(long double x);
floating_point cos (arithmetic x);
float cosf(float x);
long double cosl(long double x);
floating_point cosh (arithmetic x);
float coshf(float x);
long double coshl(long double x);
floating_point exp (arithmetic x);
float expf(float x);
long double expl(long double x);
floating_point fabs (arithmetic x);
float fabsf(float x);
long double fabsl(long double x);
floating_point floor (arithmetic x);
float floorf(float x);
long double floorl(long double x);
floating_point fmod (arithmetic x, arithmetic y);
float fmodf(float x, float y);
long double fmodl(long double x, long double y);
floating_point frexp (arithmetic value, int* exp);
float frexpf(float value, int* exp);
long double frexpl(long double value, int* exp);
floating_point ldexp (arithmetic value, int exp);
float ldexpf(float value, int exp);
long double ldexpl(long double value, int exp);
floating_point log (arithmetic x);
float logf(float x);
long double logl(long double x);
floating_point log10 (arithmetic x);
float log10f(float x);
long double log10l(long double x);
floating_point modf (floating_point value, floating_point* iptr);
float modff(float value, float* iptr);
long double modfl(long double value, long double* iptr);
floating_point pow (arithmetic x, arithmetic y);
float powf(float x, float y);
long double powl(long double x, long double y);
floating_point sin (arithmetic x);
float sinf(float x);
long double sinl(long double x);
floating_point sinh (arithmetic x);
float sinhf(float x);
long double sinhl(long double x);
floating_point sqrt (arithmetic x);
float sqrtf(float x);
long double sqrtl(long double x);
floating_point tan (arithmetic x);
float tanf(float x);
long double tanl(long double x);
floating_point tanh (arithmetic x);
float tanhf(float x);
long double tanhl(long double x);
// C99
bool signbit(arithmetic x);
int fpclassify(arithmetic x);
bool isfinite(arithmetic x);
bool isinf(arithmetic x);
bool isnan(arithmetic x);
bool isnormal(arithmetic x);
bool isgreater(arithmetic x, arithmetic y);
bool isgreaterequal(arithmetic x, arithmetic y);
bool isless(arithmetic x, arithmetic y);
bool islessequal(arithmetic x, arithmetic y);
bool islessgreater(arithmetic x, arithmetic y);
bool isunordered(arithmetic x, arithmetic y);
floating_point acosh (arithmetic x);
float acoshf(float x);
long double acoshl(long double x);
floating_point asinh (arithmetic x);
float asinhf(float x);
long double asinhl(long double x);
floating_point atanh (arithmetic x);
float atanhf(float x);
long double atanhl(long double x);
floating_point cbrt (arithmetic x);
float cbrtf(float x);
long double cbrtl(long double x);
floating_point copysign (arithmetic x, arithmetic y);
float copysignf(float x, float y);
long double copysignl(long double x, long double y);
floating_point erf (arithmetic x);
float erff(float x);
long double erfl(long double x);
floating_point erfc (arithmetic x);
float erfcf(float x);
long double erfcl(long double x);
floating_point exp2 (arithmetic x);
float exp2f(float x);
long double exp2l(long double x);
floating_point expm1 (arithmetic x);
float expm1f(float x);
long double expm1l(long double x);
floating_point fdim (arithmetic x, arithmetic y);
float fdimf(float x, float y);
long double fdiml(long double x, long double y);
floating_point fma (arithmetic x, arithmetic y, arithmetic z);
float fmaf(float x, float y, float z);
long double fmal(long double x, long double y, long double z);
floating_point fmax (arithmetic x, arithmetic y);
float fmaxf(float x, float y);
long double fmaxl(long double x, long double y);
floating_point fmin (arithmetic x, arithmetic y);
float fminf(float x, float y);
long double fminl(long double x, long double y);
floating_point hypot (arithmetic x, arithmetic y);
float hypotf(float x, float y);
long double hypotl(long double x, long double y);
double hypot(double x, double y, double z); // C++17
float hypot(float x, float y, float z); // C++17
long double hypot(long double x, long double y, long double z); // C++17
int ilogb (arithmetic x);
int ilogbf(float x);
int ilogbl(long double x);
floating_point lgamma (arithmetic x);
float lgammaf(float x);
long double lgammal(long double x);
long long llrint (arithmetic x);
long long llrintf(float x);
long long llrintl(long double x);
long long llround (arithmetic x);
long long llroundf(float x);
long long llroundl(long double x);
floating_point log1p (arithmetic x);
float log1pf(float x);
long double log1pl(long double x);
floating_point log2 (arithmetic x);
float log2f(float x);
long double log2l(long double x);
floating_point logb (arithmetic x);
float logbf(float x);
long double logbl(long double x);
long lrint (arithmetic x);
long lrintf(float x);
long lrintl(long double x);
long lround (arithmetic x);
long lroundf(float x);
long lroundl(long double x);
double nan (const char* str);
float nanf(const char* str);
long double nanl(const char* str);
floating_point nearbyint (arithmetic x);
float nearbyintf(float x);
long double nearbyintl(long double x);
floating_point nextafter (arithmetic x, arithmetic y);
float nextafterf(float x, float y);
long double nextafterl(long double x, long double y);
floating_point nexttoward (arithmetic x, long double y);
float nexttowardf(float x, long double y);
long double nexttowardl(long double x, long double y);
floating_point remainder (arithmetic x, arithmetic y);
float remainderf(float x, float y);
long double remainderl(long double x, long double y);
floating_point remquo (arithmetic x, arithmetic y, int* pquo);
float remquof(float x, float y, int* pquo);
long double remquol(long double x, long double y, int* pquo);
floating_point rint (arithmetic x);
float rintf(float x);
long double rintl(long double x);
floating_point round (arithmetic x);
float roundf(float x);
long double roundl(long double x);
floating_point scalbln (arithmetic x, long ex);
float scalblnf(float x, long ex);
long double scalblnl(long double x, long ex);
floating_point scalbn (arithmetic x, int ex);
float scalbnf(float x, int ex);
long double scalbnl(long double x, int ex);
floating_point tgamma (arithmetic x);
float tgammaf(float x);
long double tgammal(long double x);
floating_point trunc (arithmetic x);
float truncf(float x);
long double truncl(long double x);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/math.h"
#include "third_party/libcxx/version"
#include "third_party/libcxx/type_traits"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
using ::signbit;
using ::fpclassify;
using ::isfinite;
using ::isinf;
using ::isnan;
using ::isnormal;
using ::isgreater;
using ::isgreaterequal;
using ::isless;
using ::islessequal;
using ::islessgreater;
using ::isunordered;
using ::isunordered;
using ::float_t;
using ::double_t;
#ifndef _AIX
using ::abs;
#endif
using ::acos;
using ::acosf;
using ::asin;
using ::asinf;
using ::atan;
using ::atanf;
using ::atan2;
using ::atan2f;
using ::ceil;
using ::ceilf;
using ::cos;
using ::cosf;
using ::cosh;
using ::coshf;
using ::exp;
using ::expf;
using ::fabs;
using ::fabsf;
using ::floor;
using ::floorf;
using ::fmod;
using ::fmodf;
using ::frexp;
using ::frexpf;
using ::ldexp;
using ::ldexpf;
using ::log;
using ::logf;
using ::log10;
using ::log10f;
using ::modf;
using ::modff;
using ::pow;
using ::powf;
using ::sin;
using ::sinf;
using ::sinh;
using ::sinhf;
using ::sqrt;
using ::sqrtf;
using ::tan;
using ::tanf;
using ::tanh;
using ::tanhf;
using ::acosh;
using ::acoshf;
using ::asinh;
using ::asinhf;
using ::atanh;
using ::atanhf;
using ::cbrt;
using ::cbrtf;
using ::copysign;
using ::copysignf;
using ::erf;
using ::erff;
using ::erfc;
using ::erfcf;
using ::exp2;
using ::exp2f;
using ::expm1;
using ::expm1f;
using ::fdim;
using ::fdimf;
using ::fmaf;
using ::fma;
using ::fmax;
using ::fmaxf;
using ::fmin;
using ::fminf;
using ::hypot;
using ::hypotf;
using ::ilogb;
using ::ilogbf;
using ::lgamma;
using ::lgammaf;
using ::llrint;
using ::llrintf;
using ::llround;
using ::llroundf;
using ::log1p;
using ::log1pf;
using ::log2;
using ::log2f;
using ::logb;
using ::logbf;
using ::lrint;
using ::lrintf;
using ::lround;
using ::lroundf;
using ::nan;
using ::nanf;
using ::nearbyint;
using ::nearbyintf;
using ::nextafter;
using ::nextafterf;
using ::nexttoward;
using ::nexttowardf;
using ::remainder;
using ::remainderf;
using ::remquo;
using ::remquof;
using ::rint;
using ::rintf;
using ::round;
using ::roundf;
using ::scalbln;
using ::scalblnf;
using ::scalbn;
using ::scalbnf;
using ::tgamma;
using ::tgammaf;
using ::trunc;
using ::truncf;
using ::acosl;
using ::asinl;
using ::atanl;
using ::atan2l;
using ::ceill;
using ::cosl;
using ::coshl;
using ::expl;
using ::fabsl;
using ::floorl;
using ::fmodl;
using ::frexpl;
using ::ldexpl;
using ::logl;
using ::log10l;
using ::modfl;
using ::powl;
using ::sinl;
using ::sinhl;
using ::sqrtl;
using ::tanl;
using ::tanhl;
using ::acoshl;
using ::asinhl;
using ::atanhl;
using ::cbrtl;
using ::copysignl;
using ::erfl;
using ::erfcl;
using ::exp2l;
using ::expm1l;
using ::fdiml;
using ::fmal;
using ::fmaxl;
using ::fminl;
using ::hypotl;
using ::ilogbl;
using ::lgammal;
using ::llrintl;
using ::llroundl;
using ::log1pl;
using ::log2l;
using ::logbl;
using ::lrintl;
using ::lroundl;
using ::nanl;
using ::nearbyintl;
using ::nextafterl;
using ::nexttowardl;
using ::remainderl;
using ::remquol;
using ::rintl;
using ::roundl;
using ::scalblnl;
using ::scalbnl;
using ::tgammal;
using ::truncl;
#if _LIBCPP_STD_VER > 14
inline _LIBCPP_INLINE_VISIBILITY float hypot( float x, float y, float z ) { return sqrt(x*x + y*y + z*z); }
inline _LIBCPP_INLINE_VISIBILITY double hypot( double x, double y, double z ) { return sqrt(x*x + y*y + z*z); }
inline _LIBCPP_INLINE_VISIBILITY long double hypot( long double x, long double y, long double z ) { return sqrt(x*x + y*y + z*z); }
template <class _A1, class _A2, class _A3>
inline _LIBCPP_INLINE_VISIBILITY
typename _EnableIf
<
is_arithmetic<_A1>::value &&
is_arithmetic<_A2>::value &&
is_arithmetic<_A3>::value,
__promote<_A1, _A2, _A3>
>::type
hypot(_A1 __lcpp_x, _A2 __lcpp_y, _A3 __lcpp_z) _NOEXCEPT
{
typedef typename __promote<_A1, _A2, _A3>::type __result_type;
static_assert((!(is_same<_A1, __result_type>::value &&
is_same<_A2, __result_type>::value &&
is_same<_A3, __result_type>::value)), "");
return hypot((__result_type)__lcpp_x, (__result_type)__lcpp_y, (__result_type)__lcpp_z);
}
#endif
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<is_floating_point<_A1>::value, bool>::type
__libcpp_isnan_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
#if __has_builtin(__builtin_isnan)
return __builtin_isnan(__lcpp_x);
#else
return isnan(__lcpp_x);
#endif
}
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<!is_floating_point<_A1>::value, bool>::type
__libcpp_isnan_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
return isnan(__lcpp_x);
}
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<is_floating_point<_A1>::value, bool>::type
__libcpp_isinf_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
#if __has_builtin(__builtin_isinf)
return __builtin_isinf(__lcpp_x);
#else
return isinf(__lcpp_x);
#endif
}
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<!is_floating_point<_A1>::value, bool>::type
__libcpp_isinf_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
return isinf(__lcpp_x);
}
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<is_floating_point<_A1>::value, bool>::type
__libcpp_isfinite_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
#if __has_builtin(__builtin_isfinite)
return __builtin_isfinite(__lcpp_x);
#else
return isfinite(__lcpp_x);
#endif
}
template <class _A1>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR typename enable_if<!is_floating_point<_A1>::value, bool>::type
__libcpp_isfinite_or_builtin(_A1 __lcpp_x) _NOEXCEPT
{
return isfinite(__lcpp_x);
}
#if _LIBCPP_STD_VER > 17
template <typename _Fp>
constexpr
_Fp __lerp(_Fp __a, _Fp __b, _Fp __t) noexcept {
if ((__a <= 0 && __b >= 0) || (__a >= 0 && __b <= 0))
return __t * __b + (1 - __t) * __a;
if (__t == 1) return __b;
const _Fp __x = __a + __t * (__b - __a);
if (__t > 1 == __b > __a)
return __b < __x ? __x : __b;
else
return __x < __b ? __x : __b;
}
constexpr float
lerp(float __a, float __b, float __t) _NOEXCEPT { return __lerp(__a, __b, __t); }
constexpr double
lerp(double __a, double __b, double __t) _NOEXCEPT { return __lerp(__a, __b, __t); }
constexpr long double
lerp(long double __a, long double __b, long double __t) _NOEXCEPT { return __lerp(__a, __b, __t); }
#endif // _LIBCPP_STD_VER > 17
template <class _IntT, class _FloatT,
bool _FloatBigger = (numeric_limits<_FloatT>::digits > numeric_limits<_IntT>::digits),
int _Bits = (numeric_limits<_IntT>::digits - numeric_limits<_FloatT>::digits)>
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR _IntT __max_representable_int_for_float() _NOEXCEPT {
static_assert(is_floating_point<_FloatT>::value, "must be a floating point type");
static_assert(is_integral<_IntT>::value, "must be an integral type");
static_assert(numeric_limits<_FloatT>::radix == 2, "FloatT has incorrect radix");
static_assert((_IsSame<_FloatT, float>::value || _IsSame<_FloatT, double>::value
|| _IsSame<_FloatT,long double>::value), "unsupported floating point type");
return _FloatBigger ? numeric_limits<_IntT>::max() : (numeric_limits<_IntT>::max() >> _Bits << _Bits);
}
// Convert a floating point number to the specified integral type after
// clamping to the integral types representable range.
//
// The behavior is undefined if `__r` is NaN.
template <class _IntT, class _RealT>
_LIBCPP_INLINE_VISIBILITY
_IntT __clamp_to_integral(_RealT __r) _NOEXCEPT {
using _Lim = std::numeric_limits<_IntT>;
const _IntT _MaxVal = std::__max_representable_int_for_float<_IntT, _RealT>();
if (__r >= ::nextafter(static_cast<_RealT>(_MaxVal), INFINITY)) {
return _Lim::max();
} else if (__r <= _Lim::lowest()) {
return _Lim::min();
}
return static_cast<_IntT>(__r);
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_CMATH

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//===----------------------- config_elast.h -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CONFIG_ELAST
#define _LIBCPP_CONFIG_ELAST
#include "third_party/libcxx/__config"
#if defined(_LIBCPP_MSVCRT_LIKE)
#include "third_party/libcxx/stdlib.h"
#else
#include "third_party/libcxx/errno.h"
#endif
#if defined(ELAST)
#define _LIBCPP_ELAST ELAST
#elif defined(_NEWLIB_VERSION)
#define _LIBCPP_ELAST __ELASTERROR
#elif defined(__Fuchsia__)
// No _LIBCPP_ELAST needed on Fuchsia
#elif defined(__wasi__)
// No _LIBCPP_ELAST needed on WASI
#elif defined(__linux__) || defined(_LIBCPP_HAS_MUSL_LIBC)
#define _LIBCPP_ELAST 4095
#elif defined(__APPLE__)
// No _LIBCPP_ELAST needed on Apple
#elif defined(__sun__)
#define _LIBCPP_ELAST ESTALE
#elif defined(_LIBCPP_MSVCRT_LIKE)
#define _LIBCPP_ELAST (_sys_nerr - 1)
#else
// Warn here so that the person doing the libcxx port has an easier time:
#warning ELAST for this platform not yet implemented
#endif
#endif // _LIBCPP_CONFIG_ELAST

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// -*- C++ -*-
//===--------------------------- cstdarg ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDARG
#define _LIBCPP_CSTDARG
/*
cstdarg synopsis
Macros:
type va_arg(va_list ap, type);
void va_copy(va_list dest, va_list src); // C99
void va_end(va_list ap);
void va_start(va_list ap, parmN);
namespace std
{
Types:
va_list
} // std
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::va_list;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTDARG

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// -*- C++ -*-
//===--------------------------- cstddef ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDDEF
#define _LIBCPP_CSTDDEF
/*
cstddef synopsis
Macros:
offsetof(type,member-designator)
NULL
namespace std
{
Types:
ptrdiff_t
size_t
max_align_t
nullptr_t
byte // C++17
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/version"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
// Don't include our own <stddef.h>; we don't want to declare ::nullptr_t.
// #include_next <stddef.h>
#include "third_party/libcxx/__nullptr"
_LIBCPP_BEGIN_NAMESPACE_STD
using ::ptrdiff_t;
using ::size_t;
#if defined(__CLANG_MAX_ALIGN_T_DEFINED) || defined(_GCC_MAX_ALIGN_T) || \
defined(__DEFINED_max_align_t) || defined(__NetBSD__)
// Re-use the compiler's <stddef.h> max_align_t where possible.
using ::max_align_t;
#else
typedef long double max_align_t;
#endif
_LIBCPP_END_NAMESPACE_STD
#if _LIBCPP_STD_VER > 14
namespace std // purposefully not versioned
{
enum class byte : unsigned char {};
constexpr byte operator| (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
static_cast<unsigned int>(__lhs) | static_cast<unsigned int>(__rhs)
));
}
constexpr byte& operator|=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs | __rhs; }
constexpr byte operator& (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
static_cast<unsigned int>(__lhs) & static_cast<unsigned int>(__rhs)
));
}
constexpr byte& operator&=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs & __rhs; }
constexpr byte operator^ (byte __lhs, byte __rhs) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
static_cast<unsigned int>(__lhs) ^ static_cast<unsigned int>(__rhs)
));
}
constexpr byte& operator^=(byte& __lhs, byte __rhs) noexcept
{ return __lhs = __lhs ^ __rhs; }
constexpr byte operator~ (byte __b) noexcept
{
return static_cast<byte>(
static_cast<unsigned char>(
~static_cast<unsigned int>(__b)
));
}
}
#include "third_party/libcxx/type_traits" // rest of byte
#endif
#endif // _LIBCPP_CSTDDEF

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// -*- C++ -*-
//===--------------------------- cstdint ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDINT
#define _LIBCPP_CSTDINT
/*
cstdint synopsis
Macros:
INT8_MIN
INT16_MIN
INT32_MIN
INT64_MIN
INT8_MAX
INT16_MAX
INT32_MAX
INT64_MAX
UINT8_MAX
UINT16_MAX
UINT32_MAX
UINT64_MAX
INT_LEAST8_MIN
INT_LEAST16_MIN
INT_LEAST32_MIN
INT_LEAST64_MIN
INT_LEAST8_MAX
INT_LEAST16_MAX
INT_LEAST32_MAX
INT_LEAST64_MAX
UINT_LEAST8_MAX
UINT_LEAST16_MAX
UINT_LEAST32_MAX
UINT_LEAST64_MAX
INT_FAST8_MIN
INT_FAST16_MIN
INT_FAST32_MIN
INT_FAST64_MIN
INT_FAST8_MAX
INT_FAST16_MAX
INT_FAST32_MAX
INT_FAST64_MAX
UINT_FAST8_MAX
UINT_FAST16_MAX
UINT_FAST32_MAX
UINT_FAST64_MAX
INTPTR_MIN
INTPTR_MAX
UINTPTR_MAX
INTMAX_MIN
INTMAX_MAX
UINTMAX_MAX
PTRDIFF_MIN
PTRDIFF_MAX
SIG_ATOMIC_MIN
SIG_ATOMIC_MAX
SIZE_MAX
WCHAR_MIN
WCHAR_MAX
WINT_MIN
WINT_MAX
INT8_C(value)
INT16_C(value)
INT32_C(value)
INT64_C(value)
UINT8_C(value)
UINT16_C(value)
UINT32_C(value)
UINT64_C(value)
INTMAX_C(value)
UINTMAX_C(value)
namespace std
{
Types:
int8_t
int16_t
int32_t
int64_t
uint8_t
uint16_t
uint32_t
uint64_t
int_least8_t
int_least16_t
int_least32_t
int_least64_t
uint_least8_t
uint_least16_t
uint_least32_t
uint_least64_t
int_fast8_t
int_fast16_t
int_fast32_t
int_fast64_t
uint_fast8_t
uint_fast16_t
uint_fast32_t
uint_fast64_t
intptr_t
uintptr_t
intmax_t
uintmax_t
} // std
*/
#include "libc/inttypes.h"
#include "libc/calls/weirdtypes.h"
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using::int8_t;
using::int16_t;
using::int32_t;
using::int64_t;
using::uint8_t;
using::uint16_t;
using::uint32_t;
using::uint64_t;
using::int_least8_t;
using::int_least16_t;
using::int_least32_t;
using::int_least64_t;
using::uint_least8_t;
using::uint_least16_t;
using::uint_least32_t;
using::uint_least64_t;
using::int_fast8_t;
using::int_fast16_t;
using::int_fast32_t;
using::int_fast64_t;
using::uint_fast8_t;
using::uint_fast16_t;
using::uint_fast32_t;
using::uint_fast64_t;
using::intptr_t;
using::uintptr_t;
using::intmax_t;
using::uintmax_t;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTDINT

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// -*- C++ -*-
//===---------------------------- cstdio ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDIO
#define _LIBCPP_CSTDIO
/*
cstdio synopsis
Macros:
BUFSIZ
EOF
FILENAME_MAX
FOPEN_MAX
L_tmpnam
NULL
SEEK_CUR
SEEK_END
SEEK_SET
TMP_MAX
_IOFBF
_IOLBF
_IONBF
stderr
stdin
stdout
namespace std
{
Types:
FILE
fpos_t
size_t
int remove(const char* filename);
int rename(const char* old, const char* new);
FILE* tmpfile(void);
char* tmpnam(char* s);
int fclose(FILE* stream);
int fflush(FILE* stream);
FILE* fopen(const char* restrict filename, const char* restrict mode);
FILE* freopen(const char* restrict filename, const char * restrict mode,
FILE * restrict stream);
void setbuf(FILE* restrict stream, char* restrict buf);
int setvbuf(FILE* restrict stream, char* restrict buf, int mode, size_t size);
int fprintf(FILE* restrict stream, const char* restrict format, ...);
int fscanf(FILE* restrict stream, const char * restrict format, ...);
int printf(const char* restrict format, ...);
int scanf(const char* restrict format, ...);
int snprintf(char* restrict s, size_t n, const char* restrict format, ...); // C99
int sprintf(char* restrict s, const char* restrict format, ...);
int sscanf(const char* restrict s, const char* restrict format, ...);
int vfprintf(FILE* restrict stream, const char* restrict format, va_list arg);
int vfscanf(FILE* restrict stream, const char* restrict format, va_list arg); // C99
int vprintf(const char* restrict format, va_list arg);
int vscanf(const char* restrict format, va_list arg); // C99
int vsnprintf(char* restrict s, size_t n, const char* restrict format, // C99
va_list arg);
int vsprintf(char* restrict s, const char* restrict format, va_list arg);
int vsscanf(const char* restrict s, const char* restrict format, va_list arg); // C99
int fgetc(FILE* stream);
char* fgets(char* restrict s, int n, FILE* restrict stream);
int fputc(int c, FILE* stream);
int fputs(const char* restrict s, FILE* restrict stream);
int getc(FILE* stream);
int getchar(void);
char* gets(char* s); // removed in C++14
int putc(int c, FILE* stream);
int putchar(int c);
int puts(const char* s);
int ungetc(int c, FILE* stream);
size_t fread(void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
size_t fwrite(const void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
int fgetpos(FILE* restrict stream, fpos_t* restrict pos);
int fseek(FILE* stream, long offset, int whence);
int fsetpos(FILE*stream, const fpos_t* pos);
long ftell(FILE* stream);
void rewind(FILE* stream);
void clearerr(FILE* stream);
int feof(FILE* stream);
int ferror(FILE* stream);
void perror(const char* s);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/stdio.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::FILE;
using ::fpos_t;
using ::size_t;
using ::fclose;
using ::fflush;
using ::setbuf;
using ::setvbuf;
using ::fprintf;
using ::fscanf;
using ::snprintf;
using ::sprintf;
using ::sscanf;
using ::vfprintf;
using ::vfscanf;
using ::vsscanf;
using ::vsnprintf;
using ::vsprintf;
using ::fgetc;
using ::fgets;
using ::fputc;
using ::fputs;
using ::getc;
using ::putc;
using ::ungetc;
using ::fread;
using ::fwrite;
using ::fgetpos;
using ::fseek;
using ::fsetpos;
using ::ftell;
using ::rewind;
using ::clearerr;
using ::feof;
using ::ferror;
using ::perror;
#ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
using ::fopen;
using ::freopen;
using ::remove;
using ::rename;
using ::tmpfile;
using ::tmpnam;
#endif
#ifndef _LIBCPP_HAS_NO_STDIN
using ::getchar;
#if _LIBCPP_STD_VER <= 11 && !defined(_LIBCPP_C_HAS_NO_GETS)
using ::gets;
#endif
using ::scanf;
using ::vscanf;
#endif
#ifndef _LIBCPP_HAS_NO_STDOUT
using ::printf;
using ::putchar;
using ::puts;
using ::vprintf;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTDIO

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// -*- C++ -*-
//===--------------------------- cstdlib ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTDLIB
#define _LIBCPP_CSTDLIB
/*
cstdlib synopsis
Macros:
EXIT_FAILURE
EXIT_SUCCESS
MB_CUR_MAX
NULL
RAND_MAX
namespace std
{
Types:
size_t
div_t
ldiv_t
lldiv_t // C99
double atof (const char* nptr);
int atoi (const char* nptr);
long atol (const char* nptr);
long long atoll(const char* nptr); // C99
double strtod (const char* restrict nptr, char** restrict endptr);
float strtof (const char* restrict nptr, char** restrict endptr); // C99
long double strtold (const char* restrict nptr, char** restrict endptr); // C99
long strtol (const char* restrict nptr, char** restrict endptr, int base);
long long strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99
unsigned long strtoul (const char* restrict nptr, char** restrict endptr, int base);
unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99
int rand(void);
void srand(unsigned int seed);
void* calloc(size_t nmemb, size_t size);
void free(void* ptr);
void* malloc(size_t size);
void* realloc(void* ptr, size_t size);
void abort(void);
int atexit(void (*func)(void));
void exit(int status);
void _Exit(int status);
char* getenv(const char* name);
int system(const char* string);
void* bsearch(const void* key, const void* base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *));
void qsort(void* base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *));
int abs( int j);
long abs( long j);
long long abs(long long j); // C++0X
long labs( long j);
long long llabs(long long j); // C99
div_t div( int numer, int denom);
ldiv_t div( long numer, long denom);
lldiv_t div(long long numer, long long denom); // C++0X
ldiv_t ldiv( long numer, long denom);
lldiv_t lldiv(long long numer, long long denom); // C99
int mblen(const char* s, size_t n);
int mbtowc(wchar_t* restrict pwc, const char* restrict s, size_t n);
int wctomb(char* s, wchar_t wchar);
size_t mbstowcs(wchar_t* restrict pwcs, const char* restrict s, size_t n);
size_t wcstombs(char* restrict s, const wchar_t* restrict pwcs, size_t n);
int at_quick_exit(void (*func)(void)) // C++11
void quick_exit(int status); // C++11
void *aligned_alloc(size_t alignment, size_t size); // C11
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/stdlib.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#ifdef __GNUC__
#define _LIBCPP_UNREACHABLE() __builtin_unreachable()
#else
#define _LIBCPP_UNREACHABLE() _VSTD::abort()
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::size_t;
using ::div_t;
using ::ldiv_t;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::lldiv_t;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::atof;
using ::atoi;
using ::atol;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::atoll;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::strtod;
using ::strtof;
using ::strtold;
using ::strtol;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::strtoll;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::strtoul;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::strtoull;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::rand;
using ::srand;
using ::calloc;
using ::free;
using ::malloc;
using ::realloc;
using ::abort;
using ::atexit;
using ::exit;
using ::_Exit;
#ifndef _LIBCPP_WINDOWS_STORE_APP
using ::getenv;
using ::system;
#endif
using ::bsearch;
using ::qsort;
using ::abs;
using ::labs;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::llabs;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::div;
using ::ldiv;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::lldiv;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::mblen;
using ::mbtowc;
using ::wctomb;
using ::mbstowcs;
using ::wcstombs;
#if !defined(_LIBCPP_CXX03_LANG) && defined(_LIBCPP_HAS_QUICK_EXIT)
using ::at_quick_exit;
using ::quick_exit;
#endif
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_C11_FEATURES)
using ::aligned_alloc;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTDLIB

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// -*- C++ -*-
//===--------------------------- cstring ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CSTRING
#define _LIBCPP_CSTRING
/*
cstring synopsis
Macros:
NULL
namespace std
{
Types:
size_t
void* memcpy(void* restrict s1, const void* restrict s2, size_t n);
void* memmove(void* s1, const void* s2, size_t n);
char* strcpy (char* restrict s1, const char* restrict s2);
char* strncpy(char* restrict s1, const char* restrict s2, size_t n);
char* strcat (char* restrict s1, const char* restrict s2);
char* strncat(char* restrict s1, const char* restrict s2, size_t n);
int memcmp(const void* s1, const void* s2, size_t n);
int strcmp (const char* s1, const char* s2);
int strncmp(const char* s1, const char* s2, size_t n);
int strcoll(const char* s1, const char* s2);
size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);
const void* memchr(const void* s, int c, size_t n);
void* memchr( void* s, int c, size_t n);
const char* strchr(const char* s, int c);
char* strchr( char* s, int c);
size_t strcspn(const char* s1, const char* s2);
const char* strpbrk(const char* s1, const char* s2);
char* strpbrk( char* s1, const char* s2);
const char* strrchr(const char* s, int c);
char* strrchr( char* s, int c);
size_t strspn(const char* s1, const char* s2);
const char* strstr(const char* s1, const char* s2);
char* strstr( char* s1, const char* s2);
char* strtok(char* restrict s1, const char* restrict s2);
void* memset(void* s, int c, size_t n);
char* strerror(int errnum);
size_t strlen(const char* s);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/string.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::size_t;
using ::memcpy;
using ::memmove;
using ::strcpy;
using ::strncpy;
using ::strcat;
using ::strncat;
using ::memcmp;
using ::strcmp;
using ::strncmp;
using ::strcoll;
using ::strxfrm;
using ::memchr;
using ::strchr;
using ::strcspn;
using ::strpbrk;
using ::strrchr;
using ::strspn;
using ::strstr;
#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
using ::strtok;
#endif
using ::memset;
using ::strerror;
using ::strlen;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CSTRING

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// -*- C++ -*-
//===---------------------------- ctime -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CTIME
#define _LIBCPP_CTIME
/*
ctime synopsis
Macros:
NULL
CLOCKS_PER_SEC
TIME_UTC // C++17
namespace std
{
Types:
clock_t
size_t
time_t
tm
timespec // C++17
clock_t clock();
double difftime(time_t time1, time_t time0);
time_t mktime(tm* timeptr);
time_t time(time_t* timer);
char* asctime(const tm* timeptr);
char* ctime(const time_t* timer);
tm* gmtime(const time_t* timer);
tm* localtime(const time_t* timer);
size_t strftime(char* restrict s, size_t maxsize, const char* restrict format,
const tm* restrict timeptr);
int timespec_get( struct timespec *ts, int base); // C++17
} // std
*/
#include "third_party/libcxx/__config"
#include "libc/isystem/time.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::clock_t;
using ::size_t;
using ::time_t;
using ::tm;
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_C11_FEATURES)
using ::timespec;
#endif
using ::clock;
using ::difftime;
using ::mktime;
using ::time;
#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
using ::asctime;
using ::ctime;
using ::gmtime;
using ::localtime;
#endif
using ::strftime;
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_TIMESPEC_GET)
using ::timespec_get;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CTIME

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// -*- C++ -*-
//===---------------------------- ctype.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CTYPE_H
#define _LIBCPP_CTYPE_H
/*
ctype.h synopsis
int isalnum(int c);
int isalpha(int c);
int isblank(int c); // C99
int iscntrl(int c);
int isdigit(int c);
int isgraph(int c);
int islower(int c);
int isprint(int c);
int ispunct(int c);
int isspace(int c);
int isupper(int c);
int isxdigit(int c);
int tolower(int c);
int toupper(int c);
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/ctype.h"
#ifdef __cplusplus
#undef isalnum
#undef isalpha
#undef isblank
#undef iscntrl
#undef isdigit
#undef isgraph
#undef islower
#undef isprint
#undef ispunct
#undef isspace
#undef isupper
#undef isxdigit
#undef tolower
#undef toupper
#endif
#endif // _LIBCPP_CTYPE_H

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// -*- C++ -*-
//===--------------------------- cwchar -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CWCHAR
#define _LIBCPP_CWCHAR
/*
cwchar synopsis
Macros:
NULL
WCHAR_MAX
WCHAR_MIN
WEOF
namespace std
{
Types:
mbstate_t
size_t
tm
wint_t
int fwprintf(FILE* restrict stream, const wchar_t* restrict format, ...);
int fwscanf(FILE* restrict stream, const wchar_t* restrict format, ...);
int swprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, ...);
int swscanf(const wchar_t* restrict s, const wchar_t* restrict format, ...);
int vfwprintf(FILE* restrict stream, const wchar_t* restrict format, va_list arg);
int vfwscanf(FILE* restrict stream, const wchar_t* restrict format, va_list arg); // C99
int vswprintf(wchar_t* restrict s, size_t n, const wchar_t* restrict format, va_list arg);
int vswscanf(const wchar_t* restrict s, const wchar_t* restrict format, va_list arg); // C99
int vwprintf(const wchar_t* restrict format, va_list arg);
int vwscanf(const wchar_t* restrict format, va_list arg); // C99
int wprintf(const wchar_t* restrict format, ...);
int wscanf(const wchar_t* restrict format, ...);
wint_t fgetwc(FILE* stream);
wchar_t* fgetws(wchar_t* restrict s, int n, FILE* restrict stream);
wint_t fputwc(wchar_t c, FILE* stream);
int fputws(const wchar_t* restrict s, FILE* restrict stream);
int fwide(FILE* stream, int mode);
wint_t getwc(FILE* stream);
wint_t getwchar();
wint_t putwc(wchar_t c, FILE* stream);
wint_t putwchar(wchar_t c);
wint_t ungetwc(wint_t c, FILE* stream);
double wcstod(const wchar_t* restrict nptr, wchar_t** restrict endptr);
float wcstof(const wchar_t* restrict nptr, wchar_t** restrict endptr); // C99
long double wcstold(const wchar_t* restrict nptr, wchar_t** restrict endptr); // C99
long wcstol(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
long long wcstoll(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base); // C99
unsigned long wcstoul(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base);
unsigned long long wcstoull(const wchar_t* restrict nptr, wchar_t** restrict endptr, int base); // C99
wchar_t* wcscpy(wchar_t* restrict s1, const wchar_t* restrict s2);
wchar_t* wcsncpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
wchar_t* wcscat(wchar_t* restrict s1, const wchar_t* restrict s2);
wchar_t* wcsncat(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
int wcscmp(const wchar_t* s1, const wchar_t* s2);
int wcscoll(const wchar_t* s1, const wchar_t* s2);
int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n);
size_t wcsxfrm(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
const wchar_t* wcschr(const wchar_t* s, wchar_t c);
wchar_t* wcschr( wchar_t* s, wchar_t c);
size_t wcscspn(const wchar_t* s1, const wchar_t* s2);
size_t wcslen(const wchar_t* s);
const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2);
wchar_t* wcspbrk( wchar_t* s1, const wchar_t* s2);
const wchar_t* wcsrchr(const wchar_t* s, wchar_t c);
wchar_t* wcsrchr( wchar_t* s, wchar_t c);
size_t wcsspn(const wchar_t* s1, const wchar_t* s2);
const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2);
wchar_t* wcsstr( wchar_t* s1, const wchar_t* s2);
wchar_t* wcstok(wchar_t* restrict s1, const wchar_t* restrict s2, wchar_t** restrict ptr);
const wchar_t* wmemchr(const wchar_t* s, wchar_t c, size_t n);
wchar_t* wmemchr( wchar_t* s, wchar_t c, size_t n);
int wmemcmp(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
wchar_t* wmemcpy(wchar_t* restrict s1, const wchar_t* restrict s2, size_t n);
wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n);
wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n);
size_t wcsftime(wchar_t* restrict s, size_t maxsize, const wchar_t* restrict format,
const tm* restrict timeptr);
wint_t btowc(int c);
int wctob(wint_t c);
int mbsinit(const mbstate_t* ps);
size_t mbrlen(const char* restrict s, size_t n, mbstate_t* restrict ps);
size_t mbrtowc(wchar_t* restrict pwc, const char* restrict s, size_t n, mbstate_t* restrict ps);
size_t wcrtomb(char* restrict s, wchar_t wc, mbstate_t* restrict ps);
size_t mbsrtowcs(wchar_t* restrict dst, const char** restrict src, size_t len,
mbstate_t* restrict ps);
size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,
mbstate_t* restrict ps);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cwctype"
#include "third_party/libcxx/wchar.h"
#include "libc/time/struct/tm.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::mbstate_t;
using ::size_t;
using ::tm;
using ::wint_t;
using ::FILE;
using ::fwprintf;
using ::fwscanf;
using ::swprintf;
using ::vfwprintf;
using ::vswprintf;
using ::swscanf;
using ::vfwscanf;
using ::vswscanf;
using ::fgetwc;
using ::fgetws;
using ::fputwc;
using ::fputws;
using ::fwide;
using ::getwc;
using ::putwc;
using ::ungetwc;
using ::wcstod;
using ::wcstof;
using ::wcstold;
using ::wcstol;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::wcstoll;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::wcstoul;
#ifndef _LIBCPP_HAS_NO_LONG_LONG
using ::wcstoull;
#endif // _LIBCPP_HAS_NO_LONG_LONG
using ::wcscpy;
using ::wcsncpy;
using ::wcscat;
using ::wcsncat;
using ::wcscmp;
using ::wcscoll;
using ::wcsncmp;
using ::wcsxfrm;
using ::wcschr;
using ::wcspbrk;
using ::wcsrchr;
using ::wcsstr;
using ::wmemchr;
using ::wcscspn;
using ::wcslen;
using ::wcsspn;
using ::wcstok;
using ::wmemcmp;
using ::wmemcpy;
using ::wmemmove;
using ::wmemset;
using ::wcsftime;
using ::btowc;
using ::wctob;
using ::mbsinit;
using ::mbrlen;
using ::mbrtowc;
using ::wcrtomb;
using ::mbsrtowcs;
using ::wcsrtombs;
#ifndef _LIBCPP_HAS_NO_STDIN
using ::getwchar;
using ::vwscanf;
using ::wscanf;
#endif
#ifndef _LIBCPP_HAS_NO_STDOUT
using ::putwchar;
using ::vwprintf;
using ::wprintf;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CWCHAR

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// -*- C++ -*-
//===--------------------------- cwctype ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_CWCTYPE
#define _LIBCPP_CWCTYPE
/*
cwctype synopsis
Macros:
WEOF
namespace std
{
Types:
wint_t
wctrans_t
wctype_t
int iswalnum(wint_t wc);
int iswalpha(wint_t wc);
int iswblank(wint_t wc); // C99
int iswcntrl(wint_t wc);
int iswdigit(wint_t wc);
int iswgraph(wint_t wc);
int iswlower(wint_t wc);
int iswprint(wint_t wc);
int iswpunct(wint_t wc);
int iswspace(wint_t wc);
int iswupper(wint_t wc);
int iswxdigit(wint_t wc);
int iswctype(wint_t wc, wctype_t desc);
wctype_t wctype(const char* property);
wint_t towlower(wint_t wc);
wint_t towupper(wint_t wc);
wint_t towctrans(wint_t wc, wctrans_t desc);
wctrans_t wctrans(const char* property);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cctype"
#include "third_party/libcxx/wctype.h"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
using ::wint_t;
using ::wctrans_t;
using ::wctype_t;
using ::iswalnum;
using ::iswalpha;
using ::iswblank;
using ::iswcntrl;
using ::iswdigit;
using ::iswgraph;
using ::iswlower;
using ::iswprint;
using ::iswpunct;
using ::iswspace;
using ::iswupper;
using ::iswxdigit;
using ::iswctype;
using ::wctype;
using ::towlower;
using ::towupper;
using ::towctrans;
using ::wctrans;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_CWCTYPE

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// -*- C++ -*-
//===-------------------------- errno.h -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_ERRNO_H
#define _LIBCPP_ERRNO_H
/*
errno.h synopsis
Macros:
EDOM
EILSEQ // C99
ERANGE
errno
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/errno.h"
#ifdef __cplusplus
#if !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE)
#ifdef ELAST
static const int __elast1 = ELAST + 1;
static const int __elast2 = ELAST + 2;
#else
static const int __elast1 = 104;
static const int __elast2 = 105;
#endif
#ifdef ENOTRECOVERABLE
#define EOWNERDEAD __elast1
#ifdef ELAST
#undef ELAST
#define ELAST EOWNERDEAD
#endif
#elif defined(EOWNERDEAD)
#define ENOTRECOVERABLE __elast1
#ifdef ELAST
#undef ELAST
#define ELAST ENOTRECOVERABLE
#endif
#else // defined(EOWNERDEAD)
#define EOWNERDEAD __elast1
#define ENOTRECOVERABLE __elast2
#ifdef ELAST
#undef ELAST
#define ELAST ENOTRECOVERABLE
#endif
#endif // defined(EOWNERDEAD)
#endif // !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE)
// supply errno values likely to be missing, particularly on Windows
#ifndef EAFNOSUPPORT
#define EAFNOSUPPORT 9901
#endif
#ifndef EADDRINUSE
#define EADDRINUSE 9902
#endif
#ifndef EADDRNOTAVAIL
#define EADDRNOTAVAIL 9903
#endif
#ifndef EISCONN
#define EISCONN 9904
#endif
#ifndef EBADMSG
#define EBADMSG 9905
#endif
#ifndef ECONNABORTED
#define ECONNABORTED 9906
#endif
#ifndef EALREADY
#define EALREADY 9907
#endif
#ifndef ECONNREFUSED
#define ECONNREFUSED 9908
#endif
#ifndef ECONNRESET
#define ECONNRESET 9909
#endif
#ifndef EDESTADDRREQ
#define EDESTADDRREQ 9910
#endif
#ifndef EHOSTUNREACH
#define EHOSTUNREACH 9911
#endif
#ifndef EIDRM
#define EIDRM 9912
#endif
#ifndef EMSGSIZE
#define EMSGSIZE 9913
#endif
#ifndef ENETDOWN
#define ENETDOWN 9914
#endif
#ifndef ENETRESET
#define ENETRESET 9915
#endif
#ifndef ENETUNREACH
#define ENETUNREACH 9916
#endif
#ifndef ENOBUFS
#define ENOBUFS 9917
#endif
#ifndef ENOLINK
#define ENOLINK 9918
#endif
#ifndef ENODATA
#define ENODATA 9919
#endif
#ifndef ENOMSG
#define ENOMSG 9920
#endif
#ifndef ENOPROTOOPT
#define ENOPROTOOPT 9921
#endif
#ifndef ENOSR
#define ENOSR 9922
#endif
#ifndef ENOTSOCK
#define ENOTSOCK 9923
#endif
#ifndef ENOSTR
#define ENOSTR 9924
#endif
#ifndef ENOTCONN
#define ENOTCONN 9925
#endif
#ifndef ENOTSUP
#define ENOTSUP 9926
#endif
#ifndef ECANCELED
#define ECANCELED 9927
#endif
#ifndef EINPROGRESS
#define EINPROGRESS 9928
#endif
#ifndef EOPNOTSUPP
#define EOPNOTSUPP 9929
#endif
#ifndef EWOULDBLOCK
#define EWOULDBLOCK 9930
#endif
#ifndef EOWNERDEAD
#define EOWNERDEAD 9931
#endif
#ifndef EPROTO
#define EPROTO 9932
#endif
#ifndef EPROTONOSUPPORT
#define EPROTONOSUPPORT 9933
#endif
#ifndef ENOTRECOVERABLE
#define ENOTRECOVERABLE 9934
#endif
#ifndef ETIME
#define ETIME 9935
#endif
#ifndef ETXTBSY
#define ETXTBSY 9936
#endif
#ifndef ETIMEDOUT
#define ETIMEDOUT 9938
#endif
#ifndef ELOOP
#define ELOOP 9939
#endif
#ifndef EOVERFLOW
#define EOVERFLOW 9940
#endif
#ifndef EPROTOTYPE
#define EPROTOTYPE 9941
#endif
#ifndef ENOSYS
#define ENOSYS 9942
#endif
#ifndef EINVAL
#define EINVAL 9943
#endif
#ifndef ERANGE
#define ERANGE 9944
#endif
#ifndef EILSEQ
#define EILSEQ 9945
#endif
// Windows Mobile doesn't appear to define these:
#ifndef E2BIG
#define E2BIG 9946
#endif
#ifndef EDOM
#define EDOM 9947
#endif
#ifndef EFAULT
#define EFAULT 9948
#endif
#ifndef EBADF
#define EBADF 9949
#endif
#ifndef EPIPE
#define EPIPE 9950
#endif
#ifndef EXDEV
#define EXDEV 9951
#endif
#ifndef EBUSY
#define EBUSY 9952
#endif
#ifndef ENOTEMPTY
#define ENOTEMPTY 9953
#endif
#ifndef ENOEXEC
#define ENOEXEC 9954
#endif
#ifndef EEXIST
#define EEXIST 9955
#endif
#ifndef EFBIG
#define EFBIG 9956
#endif
#ifndef ENAMETOOLONG
#define ENAMETOOLONG 9957
#endif
#ifndef ENOTTY
#define ENOTTY 9958
#endif
#ifndef EINTR
#define EINTR 9959
#endif
#ifndef ESPIPE
#define ESPIPE 9960
#endif
#ifndef EIO
#define EIO 9961
#endif
#ifndef EISDIR
#define EISDIR 9962
#endif
#ifndef ECHILD
#define ECHILD 9963
#endif
#ifndef ENOLCK
#define ENOLCK 9964
#endif
#ifndef ENOSPC
#define ENOSPC 9965
#endif
#ifndef ENXIO
#define ENXIO 9966
#endif
#ifndef ENODEV
#define ENODEV 9967
#endif
#ifndef ENOENT
#define ENOENT 9968
#endif
#ifndef ESRCH
#define ESRCH 9969
#endif
#ifndef ENOTDIR
#define ENOTDIR 9970
#endif
#ifndef ENOMEM
#define ENOMEM 9971
#endif
#ifndef EPERM
#define EPERM 9972
#endif
#ifndef EACCES
#define EACCES 9973
#endif
#ifndef EROFS
#define EROFS 9974
#endif
#ifndef EDEADLK
#define EDEADLK 9975
#endif
#ifndef EAGAIN
#define EAGAIN 9976
#endif
#ifndef ENFILE
#define ENFILE 9977
#endif
#ifndef EMFILE
#define EMFILE 9978
#endif
#ifndef EMLINK
#define EMLINK 9979
#endif
#endif // __cplusplus
#endif // _LIBCPP_ERRNO_H

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// -*- C++ -*-
//===-------------------------- exception ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_EXCEPTION
#define _LIBCPP_EXCEPTION
/*
exception synopsis
namespace std
{
class exception
{
public:
exception() noexcept;
exception(const exception&) noexcept;
exception& operator=(const exception&) noexcept;
virtual ~exception() noexcept;
virtual const char* what() const noexcept;
};
class bad_exception
: public exception
{
public:
bad_exception() noexcept;
bad_exception(const bad_exception&) noexcept;
bad_exception& operator=(const bad_exception&) noexcept;
virtual ~bad_exception() noexcept;
virtual const char* what() const noexcept;
};
typedef void (*unexpected_handler)();
unexpected_handler set_unexpected(unexpected_handler f ) noexcept;
unexpected_handler get_unexpected() noexcept;
[[noreturn]] void unexpected();
typedef void (*terminate_handler)();
terminate_handler set_terminate(terminate_handler f ) noexcept;
terminate_handler get_terminate() noexcept;
[[noreturn]] void terminate() noexcept;
bool uncaught_exception() noexcept;
int uncaught_exceptions() noexcept; // C++17
typedef unspecified exception_ptr;
exception_ptr current_exception() noexcept;
void rethrow_exception [[noreturn]] (exception_ptr p);
template<class E> exception_ptr make_exception_ptr(E e) noexcept;
class nested_exception
{
public:
nested_exception() noexcept;
nested_exception(const nested_exception&) noexcept = default;
nested_exception& operator=(const nested_exception&) noexcept = default;
virtual ~nested_exception() = default;
// access functions
[[noreturn]] void rethrow_nested() const;
exception_ptr nested_ptr() const noexcept;
};
template <class T> [[noreturn]] void throw_with_nested(T&& t);
template <class E> void rethrow_if_nested(const E& e);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/cstdlib"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/version"
#if defined(_LIBCPP_ABI_VCRUNTIME)
#include "third_party/libcxx/vcruntime_exception.h"
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
namespace std // purposefully not using versioning namespace
{
#if !defined(_LIBCPP_ABI_VCRUNTIME)
class _LIBCPP_EXCEPTION_ABI exception
{
public:
_LIBCPP_INLINE_VISIBILITY exception() _NOEXCEPT {}
virtual ~exception() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
class _LIBCPP_EXCEPTION_ABI bad_exception
: public exception
{
public:
_LIBCPP_INLINE_VISIBILITY bad_exception() _NOEXCEPT {}
virtual ~bad_exception() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
#endif // !_LIBCPP_ABI_VCRUNTIME
#if _LIBCPP_STD_VER <= 14 \
|| defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS) \
|| defined(_LIBCPP_BUILDING_LIBRARY)
typedef void (*unexpected_handler)();
_LIBCPP_FUNC_VIS unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT;
_LIBCPP_FUNC_VIS unexpected_handler get_unexpected() _NOEXCEPT;
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void unexpected();
#endif
typedef void (*terminate_handler)();
_LIBCPP_FUNC_VIS terminate_handler set_terminate(terminate_handler) _NOEXCEPT;
_LIBCPP_FUNC_VIS terminate_handler get_terminate() _NOEXCEPT;
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void terminate() _NOEXCEPT;
_LIBCPP_FUNC_VIS bool uncaught_exception() _NOEXCEPT;
_LIBCPP_FUNC_VIS _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS int uncaught_exceptions() _NOEXCEPT;
class _LIBCPP_TYPE_VIS exception_ptr;
_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);
#ifndef _LIBCPP_ABI_MICROSOFT
class _LIBCPP_TYPE_VIS exception_ptr
{
void* __ptr_;
public:
_LIBCPP_INLINE_VISIBILITY exception_ptr() _NOEXCEPT : __ptr_() {}
_LIBCPP_INLINE_VISIBILITY exception_ptr(nullptr_t) _NOEXCEPT : __ptr_() {}
exception_ptr(const exception_ptr&) _NOEXCEPT;
exception_ptr& operator=(const exception_ptr&) _NOEXCEPT;
~exception_ptr() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT
{return __ptr_ != nullptr;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT
{return __x.__ptr_ == __y.__ptr_;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT
{return !(__x == __y);}
friend _LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
friend _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);
};
template<class _Ep>
_LIBCPP_INLINE_VISIBILITY exception_ptr
make_exception_ptr(_Ep __e) _NOEXCEPT
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
throw __e;
}
catch (...)
{
return current_exception();
}
#else
((void)__e);
_VSTD::abort();
#endif
}
#else // _LIBCPP_ABI_MICROSOFT
class _LIBCPP_TYPE_VIS exception_ptr
{
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-private-field"
#endif
void* __ptr1_;
void* __ptr2_;
#if defined(__clang__)
#pragma clang diagnostic pop
#endif
public:
exception_ptr() _NOEXCEPT;
exception_ptr(nullptr_t) _NOEXCEPT;
exception_ptr(const exception_ptr& __other) _NOEXCEPT;
exception_ptr& operator=(const exception_ptr& __other) _NOEXCEPT;
exception_ptr& operator=(nullptr_t) _NOEXCEPT;
~exception_ptr() _NOEXCEPT;
_LIBCPP_EXPLICIT operator bool() const _NOEXCEPT;
};
_LIBCPP_FUNC_VIS
bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT;
inline _LIBCPP_INLINE_VISIBILITY
bool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT
{return !(__x == __y);}
_LIBCPP_FUNC_VIS void swap(exception_ptr&, exception_ptr&) _NOEXCEPT;
_LIBCPP_FUNC_VIS exception_ptr __copy_exception_ptr(void *__except, const void* __ptr);
_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr p);
// This is a built-in template function which automagically extracts the required
// information.
template <class _E> void *__GetExceptionInfo(_E);
template<class _Ep>
_LIBCPP_INLINE_VISIBILITY exception_ptr
make_exception_ptr(_Ep __e) _NOEXCEPT
{
return __copy_exception_ptr(_VSTD::addressof(__e), __GetExceptionInfo(__e));
}
#endif // _LIBCPP_ABI_MICROSOFT
// nested_exception
class _LIBCPP_EXCEPTION_ABI nested_exception
{
exception_ptr __ptr_;
public:
nested_exception() _NOEXCEPT;
// nested_exception(const nested_exception&) noexcept = default;
// nested_exception& operator=(const nested_exception&) noexcept = default;
virtual ~nested_exception() _NOEXCEPT;
// access functions
_LIBCPP_NORETURN void rethrow_nested() const;
_LIBCPP_INLINE_VISIBILITY exception_ptr nested_ptr() const _NOEXCEPT {return __ptr_;}
};
template <class _Tp>
struct __nested
: public _Tp,
public nested_exception
{
_LIBCPP_INLINE_VISIBILITY explicit __nested(const _Tp& __t) : _Tp(__t) {}
};
#ifndef _LIBCPP_NO_EXCEPTIONS
template <class _Tp, class _Up, bool>
struct __throw_with_nested;
template <class _Tp, class _Up>
struct __throw_with_nested<_Tp, _Up, true> {
_LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void
__do_throw(_Tp&& __t)
{
throw __nested<_Up>(_VSTD::forward<_Tp>(__t));
}
};
template <class _Tp, class _Up>
struct __throw_with_nested<_Tp, _Up, false> {
_LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void
#ifndef _LIBCPP_CXX03_LANG
__do_throw(_Tp&& __t)
#else
__do_throw (_Tp& __t)
#endif // _LIBCPP_CXX03_LANG
{
throw _VSTD::forward<_Tp>(__t);
}
};
#endif
template <class _Tp>
_LIBCPP_NORETURN
void
throw_with_nested(_Tp&& __t)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
typedef typename decay<_Tp>::type _Up;
static_assert( is_copy_constructible<_Up>::value, "type thrown must be CopyConstructible");
__throw_with_nested<_Tp, _Up,
is_class<_Up>::value &&
!is_base_of<nested_exception, _Up>::value &&
!__libcpp_is_final<_Up>::value>::
__do_throw(_VSTD::forward<_Tp>(__t));
#else
((void)__t);
// FIXME: Make this abort
#endif
}
template <class _From, class _To>
struct __can_dynamic_cast : public _LIBCPP_BOOL_CONSTANT(
is_polymorphic<_From>::value &&
(!is_base_of<_To, _From>::value ||
is_convertible<const _From*, const _To*>::value)) {};
template <class _Ep>
inline _LIBCPP_INLINE_VISIBILITY
void
rethrow_if_nested(const _Ep& __e,
typename enable_if< __can_dynamic_cast<_Ep, nested_exception>::value>::type* = 0)
{
const nested_exception* __nep = dynamic_cast<const nested_exception*>(_VSTD::addressof(__e));
if (__nep)
__nep->rethrow_nested();
}
template <class _Ep>
inline _LIBCPP_INLINE_VISIBILITY
void
rethrow_if_nested(const _Ep&,
typename enable_if<!__can_dynamic_cast<_Ep, nested_exception>::value>::type* = 0)
{
}
} // std
#endif // _LIBCPP_EXCEPTION

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//===------------------------ exception.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/__config"
#include "third_party/libcxx/exception"
#include "third_party/libcxx/new"
#include "third_party/libcxx/typeinfo"
#include "third_party/libcxx/atomic_support.hh"
#include "third_party/libcxx/exception_fallback.hh"
#include "third_party/libcxx/exception_pointer_unimplemented.hh"

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/exception"
#include "third_party/libcxx/cstdio"
#include "third_party/libcxx/atomic_support.hh"
namespace std {
_LIBCPP_SAFE_STATIC static std::terminate_handler __terminate_handler;
_LIBCPP_SAFE_STATIC static std::unexpected_handler __unexpected_handler;
// libcxxrt provides implementations of these functions itself.
unexpected_handler set_unexpected(unexpected_handler func) _NOEXCEPT {
return __libcpp_atomic_exchange(&__unexpected_handler, func);
}
unexpected_handler get_unexpected() _NOEXCEPT {
return __libcpp_atomic_load(&__unexpected_handler);
}
_LIBCPP_NORETURN
void unexpected() {
(*get_unexpected())();
// unexpected handler should not return
terminate();
}
terminate_handler set_terminate(terminate_handler func) _NOEXCEPT {
return __libcpp_atomic_exchange(&__terminate_handler, func);
}
terminate_handler get_terminate() _NOEXCEPT {
return __libcpp_atomic_load(&__terminate_handler);
}
#ifndef __EMSCRIPTEN__ // We provide this in JS
_LIBCPP_NORETURN
void terminate() _NOEXCEPT {
#ifndef _LIBCPP_NO_EXCEPTIONS
try {
#endif // _LIBCPP_NO_EXCEPTIONS
(*get_terminate())();
// handler should not return
fprintf(stderr, "terminate_handler unexpectedly returned\n");
::abort();
#ifndef _LIBCPP_NO_EXCEPTIONS
} catch (...) {
// handler should not throw exception
fprintf(stderr, "terminate_handler unexpectedly threw an exception\n");
::abort();
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
#endif // !__EMSCRIPTEN__
#if !defined(__EMSCRIPTEN__)
bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; }
int uncaught_exceptions() _NOEXCEPT {
// #warning uncaught_exception not yet implemented
fprintf(stderr, "uncaught_exceptions not yet implemented\n");
::abort();
}
#endif // !__EMSCRIPTEN__
exception::~exception() _NOEXCEPT {}
const char* exception::what() const _NOEXCEPT { return "std::exception"; }
bad_exception::~bad_exception() _NOEXCEPT {}
const char* bad_exception::what() const _NOEXCEPT {
return "std::bad_exception";
}
bad_alloc::bad_alloc() _NOEXCEPT {}
bad_alloc::~bad_alloc() _NOEXCEPT {}
const char* bad_alloc::what() const _NOEXCEPT { return "std::bad_alloc"; }
bad_array_new_length::bad_array_new_length() _NOEXCEPT {}
bad_array_new_length::~bad_array_new_length() _NOEXCEPT {}
const char* bad_array_new_length::what() const _NOEXCEPT {
return "bad_array_new_length";
}
bad_cast::bad_cast() _NOEXCEPT {}
bad_typeid::bad_typeid() _NOEXCEPT {}
bad_cast::~bad_cast() _NOEXCEPT {}
const char* bad_cast::what() const _NOEXCEPT { return "std::bad_cast"; }
bad_typeid::~bad_typeid() _NOEXCEPT {}
const char* bad_typeid::what() const _NOEXCEPT { return "std::bad_typeid"; }
} // namespace std

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/stdio.h"
#include "third_party/libcxx/stdlib.h"
#include "third_party/libcxx/exception"
namespace std {
exception_ptr::~exception_ptr() _NOEXCEPT {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
: __ptr_(other.__ptr_) {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
nested_exception::nested_exception() _NOEXCEPT : __ptr_(current_exception()) {}
#if !defined(__GLIBCXX__)
nested_exception::~nested_exception() _NOEXCEPT {}
#endif
_LIBCPP_NORETURN
void nested_exception::rethrow_nested() const {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#if 0
if (__ptr_ == nullptr)
terminate();
rethrow_exception(__ptr_);
#endif // FIXME
}
exception_ptr current_exception() _NOEXCEPT {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
_LIBCPP_NORETURN
void rethrow_exception(exception_ptr p) {
// #warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
} // namespace std

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// clang-format off
//===----------------------- functional.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/functional"
_LIBCPP_BEGIN_NAMESPACE_STD
#ifdef _LIBCPP_ABI_BAD_FUNCTION_CALL_KEY_FUNCTION
bad_function_call::~bad_function_call() _NOEXCEPT
{
}
const char*
bad_function_call::what() const _NOEXCEPT
{
return "std::bad_function_call";
}
#endif
_LIBCPP_END_NAMESPACE_STD

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// clang-format off
//===-------------------------- hash.cpp ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/__hash_table"
#include "third_party/libcxx/algorithm"
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/type_traits"
#ifdef __clang__
#pragma clang diagnostic ignored "-Wtautological-constant-out-of-range-compare"
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace {
// handle all next_prime(i) for i in [1, 210), special case 0
const unsigned small_primes[] =
{
0,
2,
3,
5,
7,
11,
13,
17,
19,
23,
29,
31,
37,
41,
43,
47,
53,
59,
61,
67,
71,
73,
79,
83,
89,
97,
101,
103,
107,
109,
113,
127,
131,
137,
139,
149,
151,
157,
163,
167,
173,
179,
181,
191,
193,
197,
199,
211
};
// potential primes = 210*k + indices[i], k >= 1
// these numbers are not divisible by 2, 3, 5 or 7
// (or any integer 2 <= j <= 10 for that matter).
const unsigned indices[] =
{
1,
11,
13,
17,
19,
23,
29,
31,
37,
41,
43,
47,
53,
59,
61,
67,
71,
73,
79,
83,
89,
97,
101,
103,
107,
109,
113,
121,
127,
131,
137,
139,
143,
149,
151,
157,
163,
167,
169,
173,
179,
181,
187,
191,
193,
197,
199,
209
};
}
// Returns: If n == 0, returns 0. Else returns the lowest prime number that
// is greater than or equal to n.
//
// The algorithm creates a list of small primes, plus an open-ended list of
// potential primes. All prime numbers are potential prime numbers. However
// some potential prime numbers are not prime. In an ideal world, all potential
// prime numbers would be prime. Candidate prime numbers are chosen as the next
// highest potential prime. Then this number is tested for prime by dividing it
// by all potential prime numbers less than the sqrt of the candidate.
//
// This implementation defines potential primes as those numbers not divisible
// by 2, 3, 5, and 7. Other (common) implementations define potential primes
// as those not divisible by 2. A few other implementations define potential
// primes as those not divisible by 2 or 3. By raising the number of small
// primes which the potential prime is not divisible by, the set of potential
// primes more closely approximates the set of prime numbers. And thus there
// are fewer potential primes to search, and fewer potential primes to divide
// against.
template <size_t _Sz = sizeof(size_t)>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if<_Sz == 4, void>::type
__check_for_overflow(size_t N)
{
if (N > 0xFFFFFFFB)
__throw_overflow_error("__next_prime overflow");
}
template <size_t _Sz = sizeof(size_t)>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if<_Sz == 8, void>::type
__check_for_overflow(size_t N)
{
if (N > 0xFFFFFFFFFFFFFFC5ull)
__throw_overflow_error("__next_prime overflow");
}
size_t
__next_prime(size_t n)
{
const size_t L = 210;
const size_t N = sizeof(small_primes) / sizeof(small_primes[0]);
// If n is small enough, search in small_primes
if (n <= small_primes[N-1])
return *std::lower_bound(small_primes, small_primes + N, n);
// Else n > largest small_primes
// Check for overflow
__check_for_overflow(n);
// Start searching list of potential primes: L * k0 + indices[in]
const size_t M = sizeof(indices) / sizeof(indices[0]);
// Select first potential prime >= n
// Known a-priori n >= L
size_t k0 = n / L;
size_t in = static_cast<size_t>(std::lower_bound(indices, indices + M, n - k0 * L)
- indices);
n = L * k0 + indices[in];
while (true)
{
// Divide n by all primes or potential primes (i) until:
// 1. The division is even, so try next potential prime.
// 2. The i > sqrt(n), in which case n is prime.
// It is known a-priori that n is not divisible by 2, 3, 5 or 7,
// so don't test those (j == 5 -> divide by 11 first). And the
// potential primes start with 211, so don't test against the last
// small prime.
for (size_t j = 5; j < N - 1; ++j)
{
const std::size_t p = small_primes[j];
const std::size_t q = n / p;
if (q < p)
return n;
if (n == q * p)
goto next;
}
// n wasn't divisible by small primes, try potential primes
{
size_t i = 211;
while (true)
{
std::size_t q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 10;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 8;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 8;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 6;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 4;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 2;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
i += 10;
q = n / i;
if (q < i)
return n;
if (n == q * i)
break;
// This will loop i to the next "plane" of potential primes
i += 2;
}
}
next:
// n is not prime. Increment n to next potential prime.
if (++in == M)
{
++k0;
in = 0;
}
n = L * k0 + indices[in];
}
}
_LIBCPP_END_NAMESPACE_STD

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// -*- C++ -*-
//===----------------------- initializer_list -----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_INITIALIZER_LIST
#define _LIBCPP_INITIALIZER_LIST
/*
initializer_list synopsis
namespace std
{
template<class E>
class initializer_list
{
public:
typedef E value_type;
typedef const E& reference;
typedef const E& const_reference;
typedef size_t size_type;
typedef const E* iterator;
typedef const E* const_iterator;
initializer_list() noexcept; // constexpr in C++14
size_t size() const noexcept; // constexpr in C++14
const E* begin() const noexcept; // constexpr in C++14
const E* end() const noexcept; // constexpr in C++14
};
template<class E> const E* begin(initializer_list<E> il) noexcept; // constexpr in C++14
template<class E> const E* end(initializer_list<E> il) noexcept; // constexpr in C++14
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cstddef"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
namespace std // purposefully not versioned
{
#ifndef _LIBCPP_CXX03_LANG
template<class _Ep>
class _LIBCPP_TEMPLATE_VIS initializer_list
{
const _Ep* __begin_;
size_t __size_;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
initializer_list(const _Ep* __b, size_t __s) _NOEXCEPT
: __begin_(__b),
__size_(__s)
{}
public:
typedef _Ep value_type;
typedef const _Ep& reference;
typedef const _Ep& const_reference;
typedef size_t size_type;
typedef const _Ep* iterator;
typedef const _Ep* const_iterator;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
initializer_list() _NOEXCEPT : __begin_(nullptr), __size_(0) {}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
size_t size() const _NOEXCEPT {return __size_;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
const _Ep* begin() const _NOEXCEPT {return __begin_;}
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
const _Ep* end() const _NOEXCEPT {return __begin_ + __size_;}
};
template<class _Ep>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
const _Ep*
begin(initializer_list<_Ep> __il) _NOEXCEPT
{
return __il.begin();
}
template<class _Ep>
inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11
const _Ep*
end(initializer_list<_Ep> __il) _NOEXCEPT
{
return __il.end();
}
#endif // !defined(_LIBCPP_CXX03_LANG)
} // std
#endif // _LIBCPP_INITIALIZER_LIST

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// -*- C++ -*-
//===--------------------------- iosfwd -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_IOSFWD
#define _LIBCPP_IOSFWD
/*
iosfwd synopsis
namespace std
{
template<class charT> struct char_traits;
template<> struct char_traits<char>;
template<> struct char_traits<char8_t>; // C++20
template<> struct char_traits<char16_t>;
template<> struct char_traits<char32_t>;
template<> struct char_traits<wchar_t>;
template<class T> class allocator;
class ios_base;
template <class charT, class traits = char_traits<charT> > class basic_ios;
template <class charT, class traits = char_traits<charT> > class basic_streambuf;
template <class charT, class traits = char_traits<charT> > class basic_istream;
template <class charT, class traits = char_traits<charT> > class basic_ostream;
template <class charT, class traits = char_traits<charT> > class basic_iostream;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringbuf;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_istringstream;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_ostringstream;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringstream;
template <class charT, class traits = char_traits<charT> > class basic_filebuf;
template <class charT, class traits = char_traits<charT> > class basic_ifstream;
template <class charT, class traits = char_traits<charT> > class basic_ofstream;
template <class charT, class traits = char_traits<charT> > class basic_fstream;
template <class charT, class traits = char_traits<charT> > class istreambuf_iterator;
template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator;
typedef basic_ios<char> ios;
typedef basic_ios<wchar_t> wios;
typedef basic_streambuf<char> streambuf;
typedef basic_istream<char> istream;
typedef basic_ostream<char> ostream;
typedef basic_iostream<char> iostream;
typedef basic_stringbuf<char> stringbuf;
typedef basic_istringstream<char> istringstream;
typedef basic_ostringstream<char> ostringstream;
typedef basic_stringstream<char> stringstream;
typedef basic_filebuf<char> filebuf;
typedef basic_ifstream<char> ifstream;
typedef basic_ofstream<char> ofstream;
typedef basic_fstream<char> fstream;
typedef basic_streambuf<wchar_t> wstreambuf;
typedef basic_istream<wchar_t> wistream;
typedef basic_ostream<wchar_t> wostream;
typedef basic_iostream<wchar_t> wiostream;
typedef basic_stringbuf<wchar_t> wstringbuf;
typedef basic_istringstream<wchar_t> wistringstream;
typedef basic_ostringstream<wchar_t> wostringstream;
typedef basic_stringstream<wchar_t> wstringstream;
typedef basic_filebuf<wchar_t> wfilebuf;
typedef basic_ifstream<wchar_t> wifstream;
typedef basic_ofstream<wchar_t> wofstream;
typedef basic_fstream<wchar_t> wfstream;
template <class state> class fpos;
typedef fpos<char_traits<char>::state_type> streampos;
typedef fpos<char_traits<wchar_t>::state_type> wstreampos;
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/wchar.h" // for mbstate_t
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
class _LIBCPP_TYPE_VIS ios_base;
template<class _CharT> struct _LIBCPP_TEMPLATE_VIS char_traits;
template<> struct char_traits<char>;
#ifndef _LIBCPP_NO_HAS_CHAR8_T
template<> struct char_traits<char8_t>;
#endif
template<> struct char_traits<char16_t>;
template<> struct char_traits<char32_t>;
template<> struct char_traits<wchar_t>;
template<class _Tp> class _LIBCPP_TEMPLATE_VIS allocator;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_ios;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_streambuf;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_istream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_ostream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_iostream;
template <class _CharT, class _Traits = char_traits<_CharT>,
class _Allocator = allocator<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_stringbuf;
template <class _CharT, class _Traits = char_traits<_CharT>,
class _Allocator = allocator<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_istringstream;
template <class _CharT, class _Traits = char_traits<_CharT>,
class _Allocator = allocator<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_ostringstream;
template <class _CharT, class _Traits = char_traits<_CharT>,
class _Allocator = allocator<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_stringstream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_filebuf;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_ifstream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_ofstream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_fstream;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS istreambuf_iterator;
template <class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator;
typedef basic_ios<char> ios;
typedef basic_ios<wchar_t> wios;
typedef basic_streambuf<char> streambuf;
typedef basic_istream<char> istream;
typedef basic_ostream<char> ostream;
typedef basic_iostream<char> iostream;
typedef basic_stringbuf<char> stringbuf;
typedef basic_istringstream<char> istringstream;
typedef basic_ostringstream<char> ostringstream;
typedef basic_stringstream<char> stringstream;
typedef basic_filebuf<char> filebuf;
typedef basic_ifstream<char> ifstream;
typedef basic_ofstream<char> ofstream;
typedef basic_fstream<char> fstream;
typedef basic_streambuf<wchar_t> wstreambuf;
typedef basic_istream<wchar_t> wistream;
typedef basic_ostream<wchar_t> wostream;
typedef basic_iostream<wchar_t> wiostream;
typedef basic_stringbuf<wchar_t> wstringbuf;
typedef basic_istringstream<wchar_t> wistringstream;
typedef basic_ostringstream<wchar_t> wostringstream;
typedef basic_stringstream<wchar_t> wstringstream;
typedef basic_filebuf<wchar_t> wfilebuf;
typedef basic_ifstream<wchar_t> wifstream;
typedef basic_ofstream<wchar_t> wofstream;
typedef basic_fstream<wchar_t> wfstream;
template <class _State> class _LIBCPP_TEMPLATE_VIS fpos;
typedef fpos<mbstate_t> streampos;
typedef fpos<mbstate_t> wstreampos;
#ifndef _LIBCPP_NO_HAS_CHAR8_T
typedef fpos<mbstate_t> u8streampos;
#endif
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
typedef fpos<mbstate_t> u16streampos;
typedef fpos<mbstate_t> u32streampos;
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
#if defined(_NEWLIB_VERSION)
// On newlib, off_t is 'long int'
typedef long int streamoff; // for char_traits in <string>
#else
typedef long long streamoff; // for char_traits in <string>
#endif
template <class _CharT, // for <stdexcept>
class _Traits = char_traits<_CharT>,
class _Allocator = allocator<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_string;
typedef basic_string<char, char_traits<char>, allocator<char> > string;
typedef basic_string<wchar_t, char_traits<wchar_t>, allocator<wchar_t> > wstring;
// Include other forward declarations here
template <class _Tp, class _Alloc = allocator<_Tp> >
class _LIBCPP_TEMPLATE_VIS vector;
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_IOSFWD

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#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
#───vi: set et ft=make ts=8 tw=8 fenc=utf-8 :vi───────────────────────┘
PKGS += THIRD_PARTY_LIBCXX
THIRD_PARTY_LIBCXX_ARTIFACTS += THIRD_PARTY_LIBCXX_A
THIRD_PARTY_LIBCXX = $(THIRD_PARTY_LIBCXX_A_DEPS) $(THIRD_PARTY_LIBCXX_A)
THIRD_PARTY_LIBCXX_A = o/$(MODE)/third_party/libcxx/libcxx.a
THIRD_PARTY_LIBCXX_A_HDRS = \
third_party/libcxx/__bit_reference \
third_party/libcxx/__config \
third_party/libcxx/__debug \
third_party/libcxx/__functional_base \
third_party/libcxx/__hash_table \
third_party/libcxx/__node_handle \
third_party/libcxx/__nullptr \
third_party/libcxx/__split_buffer \
third_party/libcxx/__tuple \
third_party/libcxx/__undef_macros \
third_party/libcxx/algorithm \
third_party/libcxx/bitset \
third_party/libcxx/cassert \
third_party/libcxx/cerrno \
third_party/libcxx/climits \
third_party/libcxx/cmath \
third_party/libcxx/cstddef \
third_party/libcxx/cstdint \
third_party/libcxx/cstdio \
third_party/libcxx/cstdlib \
third_party/libcxx/cstring \
third_party/libcxx/deque \
third_party/libcxx/initializer_list \
third_party/libcxx/iosfwd \
third_party/libcxx/limits \
third_party/libcxx/list \
third_party/libcxx/map \
third_party/libcxx/memory \
third_party/libcxx/optional \
third_party/libcxx/queue \
third_party/libcxx/set \
third_party/libcxx/stdexcept \
third_party/libcxx/string \
third_party/libcxx/type_traits \
third_party/libcxx/unordered_map \
third_party/libcxx/unordered_set \
third_party/libcxx/vector \
third_party/libcxx/version \
third_party/libcxx/wchar.h \
third_party/libcxx/config_elast.h \
third_party/libcxx/atomic_support.hh \
third_party/libcxx/exception_fallback.hh \
third_party/libcxx/exception_pointer_unimplemented.hh \
third_party/libcxx/new_handler_fallback.hh \
third_party/libcxx/refstring.hh \
third_party/libcxx/stdexcept_default.hh
THIRD_PARTY_LIBCXX_A_SRCS_CC = \
third_party/libcxx/algorithm.cc \
third_party/libcxx/charconv.cc \
third_party/libcxx/functional.cc \
third_party/libcxx/system_error.cc \
third_party/libcxx/random.cc \
third_party/libcxx/hash.cc \
third_party/libcxx/string.cc \
third_party/libcxx/vector.cc \
third_party/libcxx/stdexcept.cc \
third_party/libcxx/exception.cc
THIRD_PARTY_LIBCXX_A_SRCS = \
$(THIRD_PARTY_LIBCXX_A_SRCS_S) \
$(THIRD_PARTY_LIBCXX_A_SRCS_C)
THIRD_PARTY_LIBCXX_A_OBJS = \
$(THIRD_PARTY_LIBCXX_A_SRCS_S:%.S=o/$(MODE)/%.o) \
$(THIRD_PARTY_LIBCXX_A_SRCS_C:%.c=o/$(MODE)/%.o) \
$(THIRD_PARTY_LIBCXX_A_SRCS_CC:%.cc=o/$(MODE)/%.o)
THIRD_PARTY_LIBCXX_A_CHECKS = \
$(THIRD_PARTY_LIBCXX_A).pkg \
$(THIRD_PARTY_LIBCXX_A_HDRS:%=o/$(MODE)/%.okk)
THIRD_PARTY_LIBCXX_A_DIRECTDEPS = \
LIBC_INTRIN \
LIBC_NEXGEN32E \
LIBC_MEM \
LIBC_RUNTIME \
LIBC_RAND \
LIBC_STDIO \
LIBC_FMT \
LIBC_SYSV \
LIBC_STR \
LIBC_STUBS \
LIBC_TINYMATH \
THIRD_PARTY_GDTOA
THIRD_PARTY_LIBCXX_A_DEPS := \
$(call uniq,$(foreach x,$(THIRD_PARTY_LIBCXX_A_DIRECTDEPS),$($(x))))
$(THIRD_PARTY_LIBCXX_A): \
third_party/libcxx/ \
$(THIRD_PARTY_LIBCXX_A).pkg \
$(THIRD_PARTY_LIBCXX_A_OBJS)
$(THIRD_PARTY_LIBCXX_A).pkg: \
$(THIRD_PARTY_LIBCXX_A_OBJS) \
$(foreach x,$(THIRD_PARTY_LIBCXX_A_DIRECTDEPS),$($(x)_A).pkg)
$(THIRD_PARTY_LIBCXX_A_OBJS): \
OVERRIDE_CXXFLAGS += \
-ffunction-sections \
-fdata-sections
THIRD_PARTY_LIBCXX_LIBS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)))
THIRD_PARTY_LIBCXX_SRCS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)_SRCS))
THIRD_PARTY_LIBCXX_HDRS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)_HDRS))
THIRD_PARTY_LIBCXX_INCS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)_INCS))
THIRD_PARTY_LIBCXX_CHECKS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)_CHECKS))
THIRD_PARTY_LIBCXX_OBJS = $(foreach x,$(THIRD_PARTY_LIBCXX_ARTIFACTS),$($(x)_OBJS))
.PHONY: o/$(MODE)/third_party/libcxx
o/$(MODE)/third_party/libcxx: $(THIRD_PARTY_LIBCXX_CHECKS)

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// -*- C++ -*-
//===---------------------------- limits ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_LIMITS
#define _LIBCPP_LIMITS
/*
limits synopsis
namespace std
{
template<class T>
class numeric_limits
{
public:
static constexpr bool is_specialized = false;
static constexpr T min() noexcept;
static constexpr T max() noexcept;
static constexpr T lowest() noexcept;
static constexpr int digits = 0;
static constexpr int digits10 = 0;
static constexpr int max_digits10 = 0;
static constexpr bool is_signed = false;
static constexpr bool is_integer = false;
static constexpr bool is_exact = false;
static constexpr int radix = 0;
static constexpr T epsilon() noexcept;
static constexpr T round_error() noexcept;
static constexpr int min_exponent = 0;
static constexpr int min_exponent10 = 0;
static constexpr int max_exponent = 0;
static constexpr int max_exponent10 = 0;
static constexpr bool has_infinity = false;
static constexpr bool has_quiet_NaN = false;
static constexpr bool has_signaling_NaN = false;
static constexpr float_denorm_style has_denorm = denorm_absent;
static constexpr bool has_denorm_loss = false;
static constexpr T infinity() noexcept;
static constexpr T quiet_NaN() noexcept;
static constexpr T signaling_NaN() noexcept;
static constexpr T denorm_min() noexcept;
static constexpr bool is_iec559 = false;
static constexpr bool is_bounded = false;
static constexpr bool is_modulo = false;
static constexpr bool traps = false;
static constexpr bool tinyness_before = false;
static constexpr float_round_style round_style = round_toward_zero;
};
enum float_round_style
{
round_indeterminate = -1,
round_toward_zero = 0,
round_to_nearest = 1,
round_toward_infinity = 2,
round_toward_neg_infinity = 3
};
enum float_denorm_style
{
denorm_indeterminate = -1,
denorm_absent = 0,
denorm_present = 1
};
template<> class numeric_limits<cv bool>;
template<> class numeric_limits<cv char>;
template<> class numeric_limits<cv signed char>;
template<> class numeric_limits<cv unsigned char>;
template<> class numeric_limits<cv wchar_t>;
template<> class numeric_limits<cv char8_t>; // C++20
template<> class numeric_limits<cv char16_t>;
template<> class numeric_limits<cv char32_t>;
template<> class numeric_limits<cv short>;
template<> class numeric_limits<cv int>;
template<> class numeric_limits<cv long>;
template<> class numeric_limits<cv long long>;
template<> class numeric_limits<cv unsigned short>;
template<> class numeric_limits<cv unsigned int>;
template<> class numeric_limits<cv unsigned long>;
template<> class numeric_limits<cv unsigned long long>;
template<> class numeric_limits<cv float>;
template<> class numeric_limits<cv double>;
template<> class numeric_limits<cv long double>;
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/type_traits"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
#include "third_party/libcxx/version"
_LIBCPP_BEGIN_NAMESPACE_STD
enum float_round_style
{
round_indeterminate = -1,
round_toward_zero = 0,
round_to_nearest = 1,
round_toward_infinity = 2,
round_toward_neg_infinity = 3
};
enum float_denorm_style
{
denorm_indeterminate = -1,
denorm_absent = 0,
denorm_present = 1
};
template <class _Tp, bool = is_arithmetic<_Tp>::value>
class __libcpp_numeric_limits
{
protected:
typedef _Tp type;
static _LIBCPP_CONSTEXPR const bool is_specialized = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return type();}
static _LIBCPP_CONSTEXPR const int digits = 0;
static _LIBCPP_CONSTEXPR const int digits10 = 0;
static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
static _LIBCPP_CONSTEXPR const bool is_signed = false;
static _LIBCPP_CONSTEXPR const bool is_integer = false;
static _LIBCPP_CONSTEXPR const bool is_exact = false;
static _LIBCPP_CONSTEXPR const int radix = 0;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type();}
static _LIBCPP_CONSTEXPR const int min_exponent = 0;
static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
static _LIBCPP_CONSTEXPR const int max_exponent = 0;
static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
static _LIBCPP_CONSTEXPR const bool has_infinity = false;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type();}
static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
static _LIBCPP_CONSTEXPR const bool is_bounded = false;
static _LIBCPP_CONSTEXPR const bool is_modulo = false;
static _LIBCPP_CONSTEXPR const bool traps = false;
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
};
template <class _Tp, int __digits, bool _IsSigned>
struct __libcpp_compute_min
{
static _LIBCPP_CONSTEXPR const _Tp value = _Tp(_Tp(1) << __digits);
};
template <class _Tp, int __digits>
struct __libcpp_compute_min<_Tp, __digits, false>
{
static _LIBCPP_CONSTEXPR const _Tp value = _Tp(0);
};
template <class _Tp>
class __libcpp_numeric_limits<_Tp, true>
{
protected:
typedef _Tp type;
static _LIBCPP_CONSTEXPR const bool is_specialized = true;
static _LIBCPP_CONSTEXPR const bool is_signed = type(-1) < type(0);
static _LIBCPP_CONSTEXPR const int digits = static_cast<int>(sizeof(type) * __CHAR_BIT__ - is_signed);
static _LIBCPP_CONSTEXPR const int digits10 = digits * 3 / 10;
static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
static _LIBCPP_CONSTEXPR const type __min = __libcpp_compute_min<type, digits, is_signed>::value;
static _LIBCPP_CONSTEXPR const type __max = is_signed ? type(type(~0) ^ __min) : type(~0);
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __min;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __max;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return min();}
static _LIBCPP_CONSTEXPR const bool is_integer = true;
static _LIBCPP_CONSTEXPR const bool is_exact = true;
static _LIBCPP_CONSTEXPR const int radix = 2;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type(0);}
static _LIBCPP_CONSTEXPR const int min_exponent = 0;
static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
static _LIBCPP_CONSTEXPR const int max_exponent = 0;
static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
static _LIBCPP_CONSTEXPR const bool has_infinity = false;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type(0);}
static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
static _LIBCPP_CONSTEXPR const bool is_bounded = true;
static _LIBCPP_CONSTEXPR const bool is_modulo = !_VSTD::is_signed<_Tp>::value;
#if defined(__i386__) || defined(__x86_64__) || defined(__pnacl__) || \
defined(__wasm__)
static _LIBCPP_CONSTEXPR const bool traps = true;
#else
static _LIBCPP_CONSTEXPR const bool traps = false;
#endif
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
};
template <>
class __libcpp_numeric_limits<bool, true>
{
protected:
typedef bool type;
static _LIBCPP_CONSTEXPR const bool is_specialized = true;
static _LIBCPP_CONSTEXPR const bool is_signed = false;
static _LIBCPP_CONSTEXPR const int digits = 1;
static _LIBCPP_CONSTEXPR const int digits10 = 0;
static _LIBCPP_CONSTEXPR const int max_digits10 = 0;
static _LIBCPP_CONSTEXPR const type __min = false;
static _LIBCPP_CONSTEXPR const type __max = true;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __min;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __max;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return min();}
static _LIBCPP_CONSTEXPR const bool is_integer = true;
static _LIBCPP_CONSTEXPR const bool is_exact = true;
static _LIBCPP_CONSTEXPR const int radix = 2;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return type(0);}
static _LIBCPP_CONSTEXPR const int min_exponent = 0;
static _LIBCPP_CONSTEXPR const int min_exponent10 = 0;
static _LIBCPP_CONSTEXPR const int max_exponent = 0;
static _LIBCPP_CONSTEXPR const int max_exponent10 = 0;
static _LIBCPP_CONSTEXPR const bool has_infinity = false;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = false;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = false;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_absent;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return type(0);}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return type(0);}
static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
static _LIBCPP_CONSTEXPR const bool is_bounded = true;
static _LIBCPP_CONSTEXPR const bool is_modulo = false;
static _LIBCPP_CONSTEXPR const bool traps = false;
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_toward_zero;
};
template <>
class __libcpp_numeric_limits<float, true>
{
protected:
typedef float type;
static _LIBCPP_CONSTEXPR const bool is_specialized = true;
static _LIBCPP_CONSTEXPR const bool is_signed = true;
static _LIBCPP_CONSTEXPR const int digits = __FLT_MANT_DIG__;
static _LIBCPP_CONSTEXPR const int digits10 = __FLT_DIG__;
static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103l)/100000l;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __FLT_MIN__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __FLT_MAX__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
static _LIBCPP_CONSTEXPR const bool is_integer = false;
static _LIBCPP_CONSTEXPR const bool is_exact = false;
static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __FLT_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5F;}
static _LIBCPP_CONSTEXPR const int min_exponent = __FLT_MIN_EXP__;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __FLT_MIN_10_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent = __FLT_MAX_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __FLT_MAX_10_EXP__;
static _LIBCPP_CONSTEXPR const bool has_infinity = true;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_valf();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nanf("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nansf("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __FLT_DENORM_MIN__;}
static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
static _LIBCPP_CONSTEXPR const bool is_bounded = true;
static _LIBCPP_CONSTEXPR const bool is_modulo = false;
static _LIBCPP_CONSTEXPR const bool traps = false;
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
};
template <>
class __libcpp_numeric_limits<double, true>
{
protected:
typedef double type;
static _LIBCPP_CONSTEXPR const bool is_specialized = true;
static _LIBCPP_CONSTEXPR const bool is_signed = true;
static _LIBCPP_CONSTEXPR const int digits = __DBL_MANT_DIG__;
static _LIBCPP_CONSTEXPR const int digits10 = __DBL_DIG__;
static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103l)/100000l;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __DBL_MIN__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __DBL_MAX__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
static _LIBCPP_CONSTEXPR const bool is_integer = false;
static _LIBCPP_CONSTEXPR const bool is_exact = false;
static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __DBL_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5;}
static _LIBCPP_CONSTEXPR const int min_exponent = __DBL_MIN_EXP__;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __DBL_MIN_10_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent = __DBL_MAX_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __DBL_MAX_10_EXP__;
static _LIBCPP_CONSTEXPR const bool has_infinity = true;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_val();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nan("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nans("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __DBL_DENORM_MIN__;}
static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
static _LIBCPP_CONSTEXPR const bool is_bounded = true;
static _LIBCPP_CONSTEXPR const bool is_modulo = false;
static _LIBCPP_CONSTEXPR const bool traps = false;
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
};
template <>
class __libcpp_numeric_limits<long double, true>
{
protected:
typedef long double type;
static _LIBCPP_CONSTEXPR const bool is_specialized = true;
static _LIBCPP_CONSTEXPR const bool is_signed = true;
static _LIBCPP_CONSTEXPR const int digits = __LDBL_MANT_DIG__;
static _LIBCPP_CONSTEXPR const int digits10 = __LDBL_DIG__;
static _LIBCPP_CONSTEXPR const int max_digits10 = 2+(digits * 30103l)/100000l;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __LDBL_MIN__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __LDBL_MAX__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return -max();}
static _LIBCPP_CONSTEXPR const bool is_integer = false;
static _LIBCPP_CONSTEXPR const bool is_exact = false;
static _LIBCPP_CONSTEXPR const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __LDBL_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return 0.5L;}
static _LIBCPP_CONSTEXPR const int min_exponent = __LDBL_MIN_EXP__;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __LDBL_MIN_10_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent = __LDBL_MAX_EXP__;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __LDBL_MAX_10_EXP__;
static _LIBCPP_CONSTEXPR const bool has_infinity = true;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = true;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = true;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = denorm_present;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __builtin_huge_vall();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __builtin_nanl("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __builtin_nansl("");}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __LDBL_DENORM_MIN__;}
#if (defined(__ppc__) || defined(__ppc64__))
static _LIBCPP_CONSTEXPR const bool is_iec559 = false;
#else
static _LIBCPP_CONSTEXPR const bool is_iec559 = true;
#endif
static _LIBCPP_CONSTEXPR const bool is_bounded = true;
static _LIBCPP_CONSTEXPR const bool is_modulo = false;
static _LIBCPP_CONSTEXPR const bool traps = false;
static _LIBCPP_CONSTEXPR const bool tinyness_before = false;
static _LIBCPP_CONSTEXPR const float_round_style round_style = round_to_nearest;
};
template <class _Tp>
class _LIBCPP_TEMPLATE_VIS numeric_limits
: private __libcpp_numeric_limits<typename remove_cv<_Tp>::type>
{
typedef __libcpp_numeric_limits<typename remove_cv<_Tp>::type> __base;
typedef typename __base::type type;
public:
static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
static _LIBCPP_CONSTEXPR const int digits = __base::digits;
static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
static _LIBCPP_CONSTEXPR const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
};
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_specialized;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::digits;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_signed;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_integer;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_exact;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::radix;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::min_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::min_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<_Tp>::max_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_infinity;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_quiet_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_signaling_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<_Tp>::has_denorm;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::has_denorm_loss;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_iec559;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_bounded;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::is_modulo;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::traps;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<_Tp>::tinyness_before;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_round_style numeric_limits<_Tp>::round_style;
template <class _Tp>
class _LIBCPP_TEMPLATE_VIS numeric_limits<const _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
static _LIBCPP_CONSTEXPR const int digits = __base::digits;
static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
static _LIBCPP_CONSTEXPR const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
};
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_specialized;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::digits;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_signed;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_integer;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_exact;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::radix;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::min_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::min_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const _Tp>::max_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_infinity;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_quiet_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_signaling_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<const _Tp>::has_denorm;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::has_denorm_loss;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_iec559;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_bounded;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::is_modulo;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::traps;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const _Tp>::tinyness_before;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_round_style numeric_limits<const _Tp>::round_style;
template <class _Tp>
class _LIBCPP_TEMPLATE_VIS numeric_limits<volatile _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
static _LIBCPP_CONSTEXPR const int digits = __base::digits;
static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
static _LIBCPP_CONSTEXPR const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
};
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_specialized;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::digits;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_signed;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_integer;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_exact;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::radix;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::min_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::min_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<volatile _Tp>::max_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_infinity;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_quiet_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_signaling_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<volatile _Tp>::has_denorm;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::has_denorm_loss;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_iec559;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_bounded;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::is_modulo;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::traps;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<volatile _Tp>::tinyness_before;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_round_style numeric_limits<volatile _Tp>::round_style;
template <class _Tp>
class _LIBCPP_TEMPLATE_VIS numeric_limits<const volatile _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static _LIBCPP_CONSTEXPR const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type min() _NOEXCEPT {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type max() _NOEXCEPT {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type lowest() _NOEXCEPT {return __base::lowest();}
static _LIBCPP_CONSTEXPR const int digits = __base::digits;
static _LIBCPP_CONSTEXPR const int digits10 = __base::digits10;
static _LIBCPP_CONSTEXPR const int max_digits10 = __base::max_digits10;
static _LIBCPP_CONSTEXPR const bool is_signed = __base::is_signed;
static _LIBCPP_CONSTEXPR const bool is_integer = __base::is_integer;
static _LIBCPP_CONSTEXPR const bool is_exact = __base::is_exact;
static _LIBCPP_CONSTEXPR const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type epsilon() _NOEXCEPT {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type round_error() _NOEXCEPT {return __base::round_error();}
static _LIBCPP_CONSTEXPR const int min_exponent = __base::min_exponent;
static _LIBCPP_CONSTEXPR const int min_exponent10 = __base::min_exponent10;
static _LIBCPP_CONSTEXPR const int max_exponent = __base::max_exponent;
static _LIBCPP_CONSTEXPR const int max_exponent10 = __base::max_exponent10;
static _LIBCPP_CONSTEXPR const bool has_infinity = __base::has_infinity;
static _LIBCPP_CONSTEXPR const bool has_quiet_NaN = __base::has_quiet_NaN;
static _LIBCPP_CONSTEXPR const bool has_signaling_NaN = __base::has_signaling_NaN;
static _LIBCPP_CONSTEXPR const float_denorm_style has_denorm = __base::has_denorm;
static _LIBCPP_CONSTEXPR const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type infinity() _NOEXCEPT {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type quiet_NaN() _NOEXCEPT {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type signaling_NaN() _NOEXCEPT {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static _LIBCPP_CONSTEXPR type denorm_min() _NOEXCEPT {return __base::denorm_min();}
static _LIBCPP_CONSTEXPR const bool is_iec559 = __base::is_iec559;
static _LIBCPP_CONSTEXPR const bool is_bounded = __base::is_bounded;
static _LIBCPP_CONSTEXPR const bool is_modulo = __base::is_modulo;
static _LIBCPP_CONSTEXPR const bool traps = __base::traps;
static _LIBCPP_CONSTEXPR const bool tinyness_before = __base::tinyness_before;
static _LIBCPP_CONSTEXPR const float_round_style round_style = __base::round_style;
};
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_specialized;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::digits;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_digits10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_signed;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_integer;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_exact;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::radix;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::min_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::min_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_exponent;
template <class _Tp>
_LIBCPP_CONSTEXPR const int numeric_limits<const volatile _Tp>::max_exponent10;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_infinity;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_quiet_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_signaling_NaN;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_denorm_style numeric_limits<const volatile _Tp>::has_denorm;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::has_denorm_loss;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_iec559;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_bounded;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::is_modulo;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::traps;
template <class _Tp>
_LIBCPP_CONSTEXPR const bool numeric_limits<const volatile _Tp>::tinyness_before;
template <class _Tp>
_LIBCPP_CONSTEXPR const float_round_style numeric_limits<const volatile _Tp>::round_style;
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_LIMITS

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// -*- C++ -*-
//===--------------------------- limits.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_LIMITS_H
#define _LIBCPP_LIMITS_H
/*
limits.h synopsis
Macros:
CHAR_BIT
SCHAR_MIN
SCHAR_MAX
UCHAR_MAX
CHAR_MIN
CHAR_MAX
MB_LEN_MAX
SHRT_MIN
SHRT_MAX
USHRT_MAX
INT_MIN
INT_MAX
UINT_MAX
LONG_MIN
LONG_MAX
ULONG_MAX
LLONG_MIN // C99
LLONG_MAX // C99
ULLONG_MAX // C99
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#ifndef __GNUC__
#include "libc/limits.h"
#else
// GCC header limits.h recursively includes itself through another header called
// syslimits.h for some reason. This setup breaks down if we directly
// #include_next GCC's limits.h (reasons not entirely clear to me). Therefore,
// we manually re-create the necessary include sequence below:
// Get the system limits.h defines (force recurse into the next level)
#define _GCC_LIMITS_H_
#define _GCC_NEXT_LIMITS_H
#include "libc/limits.h"
// Get the ISO C defines
#undef _GCC_LIMITS_H_
#include "libc/limits.h"
#endif // __GNUC__
#endif // _LIBCPP_LIMITS_H

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// -*- C++ -*-
//===---------------------------- locale.h --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_LOCALE_H
#define _LIBCPP_LOCALE_H
/*
locale.h synopsis
Macros:
LC_ALL
LC_COLLATE
LC_CTYPE
LC_MONETARY
LC_NUMERIC
LC_TIME
Types:
lconv
Functions:
setlocale
localeconv
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/locale.h"
#endif // _LIBCPP_LOCALE_H

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// -*- C++ -*-
//===--------------------------- mutex ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_MUTEX
#define _LIBCPP_MUTEX
/*
mutex synopsis
namespace std
{
class mutex
{
public:
constexpr mutex() noexcept;
~mutex();
mutex(const mutex&) = delete;
mutex& operator=(const mutex&) = delete;
void lock();
bool try_lock();
void unlock();
typedef pthread_mutex_t* native_handle_type;
native_handle_type native_handle();
};
class recursive_mutex
{
public:
recursive_mutex();
~recursive_mutex();
recursive_mutex(const recursive_mutex&) = delete;
recursive_mutex& operator=(const recursive_mutex&) = delete;
void lock();
bool try_lock() noexcept;
void unlock();
typedef pthread_mutex_t* native_handle_type;
native_handle_type native_handle();
};
class timed_mutex
{
public:
timed_mutex();
~timed_mutex();
timed_mutex(const timed_mutex&) = delete;
timed_mutex& operator=(const timed_mutex&) = delete;
void lock();
bool try_lock();
template <class Rep, class Period>
bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
template <class Clock, class Duration>
bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time);
void unlock();
};
class recursive_timed_mutex
{
public:
recursive_timed_mutex();
~recursive_timed_mutex();
recursive_timed_mutex(const recursive_timed_mutex&) = delete;
recursive_timed_mutex& operator=(const recursive_timed_mutex&) = delete;
void lock();
bool try_lock() noexcept;
template <class Rep, class Period>
bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
template <class Clock, class Duration>
bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time);
void unlock();
};
struct defer_lock_t { explicit defer_lock_t() = default; };
struct try_to_lock_t { explicit try_to_lock_t() = default; };
struct adopt_lock_t { explicit adopt_lock_t() = default; };
inline constexpr defer_lock_t defer_lock{};
inline constexpr try_to_lock_t try_to_lock{};
inline constexpr adopt_lock_t adopt_lock{};
template <class Mutex>
class lock_guard
{
public:
typedef Mutex mutex_type;
explicit lock_guard(mutex_type& m);
lock_guard(mutex_type& m, adopt_lock_t);
~lock_guard();
lock_guard(lock_guard const&) = delete;
lock_guard& operator=(lock_guard const&) = delete;
};
template <class... MutexTypes>
class scoped_lock // C++17
{
public:
using mutex_type = Mutex; // If MutexTypes... consists of the single type Mutex
explicit scoped_lock(MutexTypes&... m);
scoped_lock(adopt_lock_t, MutexTypes&... m);
~scoped_lock();
scoped_lock(scoped_lock const&) = delete;
scoped_lock& operator=(scoped_lock const&) = delete;
private:
tuple<MutexTypes&...> pm; // exposition only
};
template <class Mutex>
class unique_lock
{
public:
typedef Mutex mutex_type;
unique_lock() noexcept;
explicit unique_lock(mutex_type& m);
unique_lock(mutex_type& m, defer_lock_t) noexcept;
unique_lock(mutex_type& m, try_to_lock_t);
unique_lock(mutex_type& m, adopt_lock_t);
template <class Clock, class Duration>
unique_lock(mutex_type& m, const chrono::time_point<Clock, Duration>& abs_time);
template <class Rep, class Period>
unique_lock(mutex_type& m, const chrono::duration<Rep, Period>& rel_time);
~unique_lock();
unique_lock(unique_lock const&) = delete;
unique_lock& operator=(unique_lock const&) = delete;
unique_lock(unique_lock&& u) noexcept;
unique_lock& operator=(unique_lock&& u) noexcept;
void lock();
bool try_lock();
template <class Rep, class Period>
bool try_lock_for(const chrono::duration<Rep, Period>& rel_time);
template <class Clock, class Duration>
bool try_lock_until(const chrono::time_point<Clock, Duration>& abs_time);
void unlock();
void swap(unique_lock& u) noexcept;
mutex_type* release() noexcept;
bool owns_lock() const noexcept;
explicit operator bool () const noexcept;
mutex_type* mutex() const noexcept;
};
template <class Mutex>
void swap(unique_lock<Mutex>& x, unique_lock<Mutex>& y) noexcept;
template <class L1, class L2, class... L3>
int try_lock(L1&, L2&, L3&...);
template <class L1, class L2, class... L3>
void lock(L1&, L2&, L3&...);
struct once_flag
{
constexpr once_flag() noexcept;
once_flag(const once_flag&) = delete;
once_flag& operator=(const once_flag&) = delete;
};
template<class Callable, class ...Args>
void call_once(once_flag& flag, Callable&& func, Args&&... args);
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/__mutex_base"
#include "third_party/libcxx/cstdint"
#include "third_party/libcxx/functional"
#include "third_party/libcxx/memory"
#ifndef _LIBCPP_CXX03_LANG
#include "third_party/libcxx/tuple"
#endif
#include "third_party/libcxx/version"
#include "third_party/libcxx/__threading_support"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_HAS_NO_THREADS
class _LIBCPP_TYPE_VIS recursive_mutex
{
__libcpp_recursive_mutex_t __m_;
public:
recursive_mutex();
~recursive_mutex();
private:
recursive_mutex(const recursive_mutex&); // = delete;
recursive_mutex& operator=(const recursive_mutex&); // = delete;
public:
void lock();
bool try_lock() _NOEXCEPT;
void unlock() _NOEXCEPT;
typedef __libcpp_recursive_mutex_t* native_handle_type;
_LIBCPP_INLINE_VISIBILITY
native_handle_type native_handle() {return &__m_;}
};
class _LIBCPP_TYPE_VIS timed_mutex
{
mutex __m_;
condition_variable __cv_;
bool __locked_;
public:
timed_mutex();
~timed_mutex();
private:
timed_mutex(const timed_mutex&); // = delete;
timed_mutex& operator=(const timed_mutex&); // = delete;
public:
void lock();
bool try_lock() _NOEXCEPT;
template <class _Rep, class _Period>
_LIBCPP_INLINE_VISIBILITY
bool try_lock_for(const chrono::duration<_Rep, _Period>& __d)
{return try_lock_until(chrono::steady_clock::now() + __d);}
template <class _Clock, class _Duration>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __t);
void unlock() _NOEXCEPT;
};
template <class _Clock, class _Duration>
bool
timed_mutex::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t)
{
using namespace chrono;
unique_lock<mutex> __lk(__m_);
bool no_timeout = _Clock::now() < __t;
while (no_timeout && __locked_)
no_timeout = __cv_.wait_until(__lk, __t) == cv_status::no_timeout;
if (!__locked_)
{
__locked_ = true;
return true;
}
return false;
}
class _LIBCPP_TYPE_VIS recursive_timed_mutex
{
mutex __m_;
condition_variable __cv_;
size_t __count_;
__thread_id __id_;
public:
recursive_timed_mutex();
~recursive_timed_mutex();
private:
recursive_timed_mutex(const recursive_timed_mutex&); // = delete;
recursive_timed_mutex& operator=(const recursive_timed_mutex&); // = delete;
public:
void lock();
bool try_lock() _NOEXCEPT;
template <class _Rep, class _Period>
_LIBCPP_INLINE_VISIBILITY
bool try_lock_for(const chrono::duration<_Rep, _Period>& __d)
{return try_lock_until(chrono::steady_clock::now() + __d);}
template <class _Clock, class _Duration>
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __t);
void unlock() _NOEXCEPT;
};
template <class _Clock, class _Duration>
bool
recursive_timed_mutex::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t)
{
using namespace chrono;
__thread_id __id = this_thread::get_id();
unique_lock<mutex> lk(__m_);
if (__id == __id_)
{
if (__count_ == numeric_limits<size_t>::max())
return false;
++__count_;
return true;
}
bool no_timeout = _Clock::now() < __t;
while (no_timeout && __count_ != 0)
no_timeout = __cv_.wait_until(lk, __t) == cv_status::no_timeout;
if (__count_ == 0)
{
__count_ = 1;
__id_ = __id;
return true;
}
return false;
}
template <class _L0, class _L1>
int
try_lock(_L0& __l0, _L1& __l1)
{
unique_lock<_L0> __u0(__l0, try_to_lock);
if (__u0.owns_lock())
{
if (__l1.try_lock())
{
__u0.release();
return -1;
}
else
return 1;
}
return 0;
}
#ifndef _LIBCPP_CXX03_LANG
template <class _L0, class _L1, class _L2, class... _L3>
int
try_lock(_L0& __l0, _L1& __l1, _L2& __l2, _L3&... __l3)
{
int __r = 0;
unique_lock<_L0> __u0(__l0, try_to_lock);
if (__u0.owns_lock())
{
__r = try_lock(__l1, __l2, __l3...);
if (__r == -1)
__u0.release();
else
++__r;
}
return __r;
}
#endif // _LIBCPP_CXX03_LANG
template <class _L0, class _L1>
void
lock(_L0& __l0, _L1& __l1)
{
while (true)
{
{
unique_lock<_L0> __u0(__l0);
if (__l1.try_lock())
{
__u0.release();
break;
}
}
__libcpp_thread_yield();
{
unique_lock<_L1> __u1(__l1);
if (__l0.try_lock())
{
__u1.release();
break;
}
}
__libcpp_thread_yield();
}
}
#ifndef _LIBCPP_CXX03_LANG
template <class _L0, class _L1, class _L2, class ..._L3>
void
__lock_first(int __i, _L0& __l0, _L1& __l1, _L2& __l2, _L3& ...__l3)
{
while (true)
{
switch (__i)
{
case 0:
{
unique_lock<_L0> __u0(__l0);
__i = try_lock(__l1, __l2, __l3...);
if (__i == -1)
{
__u0.release();
return;
}
}
++__i;
__libcpp_thread_yield();
break;
case 1:
{
unique_lock<_L1> __u1(__l1);
__i = try_lock(__l2, __l3..., __l0);
if (__i == -1)
{
__u1.release();
return;
}
}
if (__i == sizeof...(_L3) + 1)
__i = 0;
else
__i += 2;
__libcpp_thread_yield();
break;
default:
__lock_first(__i - 2, __l2, __l3..., __l0, __l1);
return;
}
}
}
template <class _L0, class _L1, class _L2, class ..._L3>
inline _LIBCPP_INLINE_VISIBILITY
void
lock(_L0& __l0, _L1& __l1, _L2& __l2, _L3& ...__l3)
{
__lock_first(0, __l0, __l1, __l2, __l3...);
}
template <class _L0>
inline _LIBCPP_INLINE_VISIBILITY
void __unlock(_L0& __l0) {
__l0.unlock();
}
template <class _L0, class _L1>
inline _LIBCPP_INLINE_VISIBILITY
void __unlock(_L0& __l0, _L1& __l1) {
__l0.unlock();
__l1.unlock();
}
template <class _L0, class _L1, class _L2, class ..._L3>
inline _LIBCPP_INLINE_VISIBILITY
void __unlock(_L0& __l0, _L1& __l1, _L2& __l2, _L3&... __l3) {
__l0.unlock();
__l1.unlock();
_VSTD::__unlock(__l2, __l3...);
}
#endif // _LIBCPP_CXX03_LANG
#if _LIBCPP_STD_VER > 14
template <class ..._Mutexes>
class _LIBCPP_TEMPLATE_VIS scoped_lock;
template <>
class _LIBCPP_TEMPLATE_VIS scoped_lock<> {
public:
explicit scoped_lock() {}
~scoped_lock() = default;
_LIBCPP_INLINE_VISIBILITY
explicit scoped_lock(adopt_lock_t) {}
scoped_lock(scoped_lock const&) = delete;
scoped_lock& operator=(scoped_lock const&) = delete;
};
template <class _Mutex>
class _LIBCPP_TEMPLATE_VIS _LIBCPP_THREAD_SAFETY_ANNOTATION(scoped_lockable) scoped_lock<_Mutex> {
public:
typedef _Mutex mutex_type;
private:
mutex_type& __m_;
public:
explicit scoped_lock(mutex_type & __m) _LIBCPP_THREAD_SAFETY_ANNOTATION(acquire_capability(__m))
: __m_(__m) {__m_.lock();}
~scoped_lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(release_capability()) {__m_.unlock();}
_LIBCPP_INLINE_VISIBILITY
explicit scoped_lock(adopt_lock_t, mutex_type& __m) _LIBCPP_THREAD_SAFETY_ANNOTATION(requires_capability(__m))
: __m_(__m) {}
scoped_lock(scoped_lock const&) = delete;
scoped_lock& operator=(scoped_lock const&) = delete;
};
template <class ..._MArgs>
class _LIBCPP_TEMPLATE_VIS scoped_lock
{
static_assert(sizeof...(_MArgs) > 1, "At least 2 lock types required");
typedef tuple<_MArgs&...> _MutexTuple;
public:
_LIBCPP_INLINE_VISIBILITY
explicit scoped_lock(_MArgs&... __margs)
: __t_(__margs...)
{
_VSTD::lock(__margs...);
}
_LIBCPP_INLINE_VISIBILITY
scoped_lock(adopt_lock_t, _MArgs&... __margs)
: __t_(__margs...)
{
}
_LIBCPP_INLINE_VISIBILITY
~scoped_lock() {
typedef typename __make_tuple_indices<sizeof...(_MArgs)>::type _Indices;
__unlock_unpack(_Indices{}, __t_);
}
scoped_lock(scoped_lock const&) = delete;
scoped_lock& operator=(scoped_lock const&) = delete;
private:
template <size_t ..._Indx>
_LIBCPP_INLINE_VISIBILITY
static void __unlock_unpack(__tuple_indices<_Indx...>, _MutexTuple& __mt) {
_VSTD::__unlock(_VSTD::get<_Indx>(__mt)...);
}
_MutexTuple __t_;
};
#endif // _LIBCPP_STD_VER > 14
#endif // !_LIBCPP_HAS_NO_THREADS
struct _LIBCPP_TEMPLATE_VIS once_flag;
#ifndef _LIBCPP_CXX03_LANG
template<class _Callable, class... _Args>
_LIBCPP_INLINE_VISIBILITY
void call_once(once_flag&, _Callable&&, _Args&&...);
#else // _LIBCPP_CXX03_LANG
template<class _Callable>
_LIBCPP_INLINE_VISIBILITY
void call_once(once_flag&, _Callable&);
template<class _Callable>
_LIBCPP_INLINE_VISIBILITY
void call_once(once_flag&, const _Callable&);
#endif // _LIBCPP_CXX03_LANG
struct _LIBCPP_TEMPLATE_VIS once_flag
{
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR
once_flag() _NOEXCEPT : __state_(0) {}
#if defined(_LIBCPP_ABI_MICROSOFT)
typedef uintptr_t _State_type;
#else
typedef unsigned long _State_type;
#endif
private:
once_flag(const once_flag&); // = delete;
once_flag& operator=(const once_flag&); // = delete;
_State_type __state_;
#ifndef _LIBCPP_CXX03_LANG
template<class _Callable, class... _Args>
friend
void call_once(once_flag&, _Callable&&, _Args&&...);
#else // _LIBCPP_CXX03_LANG
template<class _Callable>
friend
void call_once(once_flag&, _Callable&);
template<class _Callable>
friend
void call_once(once_flag&, const _Callable&);
#endif // _LIBCPP_CXX03_LANG
};
#ifndef _LIBCPP_CXX03_LANG
template <class _Fp>
class __call_once_param
{
_Fp& __f_;
public:
_LIBCPP_INLINE_VISIBILITY
explicit __call_once_param(_Fp& __f) : __f_(__f) {}
_LIBCPP_INLINE_VISIBILITY
void operator()()
{
typedef typename __make_tuple_indices<tuple_size<_Fp>::value, 1>::type _Index;
__execute(_Index());
}
private:
template <size_t ..._Indices>
_LIBCPP_INLINE_VISIBILITY
void __execute(__tuple_indices<_Indices...>)
{
__invoke(_VSTD::get<0>(_VSTD::move(__f_)), _VSTD::get<_Indices>(_VSTD::move(__f_))...);
}
};
#else
template <class _Fp>
class __call_once_param
{
_Fp& __f_;
public:
_LIBCPP_INLINE_VISIBILITY
explicit __call_once_param(_Fp& __f) : __f_(__f) {}
_LIBCPP_INLINE_VISIBILITY
void operator()()
{
__f_();
}
};
#endif
template <class _Fp>
void
__call_once_proxy(void* __vp)
{
__call_once_param<_Fp>* __p = static_cast<__call_once_param<_Fp>*>(__vp);
(*__p)();
}
_LIBCPP_FUNC_VIS void __call_once(volatile once_flag::_State_type&, void*,
void (*)(void*));
#ifndef _LIBCPP_CXX03_LANG
template<class _Callable, class... _Args>
inline _LIBCPP_INLINE_VISIBILITY
void
call_once(once_flag& __flag, _Callable&& __func, _Args&&... __args)
{
if (__libcpp_acquire_load(&__flag.__state_) != ~once_flag::_State_type(0))
{
typedef tuple<_Callable&&, _Args&&...> _Gp;
_Gp __f(_VSTD::forward<_Callable>(__func), _VSTD::forward<_Args>(__args)...);
__call_once_param<_Gp> __p(__f);
__call_once(__flag.__state_, &__p, &__call_once_proxy<_Gp>);
}
}
#else // _LIBCPP_CXX03_LANG
template<class _Callable>
inline _LIBCPP_INLINE_VISIBILITY
void
call_once(once_flag& __flag, _Callable& __func)
{
if (__libcpp_acquire_load(&__flag.__state_) != ~once_flag::_State_type(0))
{
__call_once_param<_Callable> __p(__func);
__call_once(__flag.__state_, &__p, &__call_once_proxy<_Callable>);
}
}
template<class _Callable>
inline _LIBCPP_INLINE_VISIBILITY
void
call_once(once_flag& __flag, const _Callable& __func)
{
if (__libcpp_acquire_load(&__flag.__state_) != ~once_flag::_State_type(0))
{
__call_once_param<const _Callable> __p(__func);
__call_once(__flag.__state_, &__p, &__call_once_proxy<const _Callable>);
}
}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_MUTEX

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// -*- C++ -*-
//===----------------------------- new ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_NEW
#define _LIBCPP_NEW
/*
new synopsis
namespace std
{
class bad_alloc
: public exception
{
public:
bad_alloc() noexcept;
bad_alloc(const bad_alloc&) noexcept;
bad_alloc& operator=(const bad_alloc&) noexcept;
virtual const char* what() const noexcept;
};
class bad_array_new_length : public bad_alloc // C++14
{
public:
bad_array_new_length() noexcept;
};
enum class align_val_t : size_t {}; // C++17
struct destroying_delete_t { // C++20
explicit destroying_delete_t() = default;
};
inline constexpr destroying_delete_t destroying_delete{}; // C++20
struct nothrow_t { explicit nothrow_t() = default; };
extern const nothrow_t nothrow;
typedef void (*new_handler)();
new_handler set_new_handler(new_handler new_p) noexcept;
new_handler get_new_handler() noexcept;
// 21.6.4, pointer optimization barrier
template <class T> constexpr T* launder(T* p) noexcept; // C++17
} // std
void* operator new(std::size_t size); // replaceable, nodiscard in C++2a
void* operator new(std::size_t size, std::align_val_t alignment); // replaceable, C++17, nodiscard in C++2a
void* operator new(std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++2a
void* operator new(std::size_t size, std::align_val_t alignment,
const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++2a
void operator delete(void* ptr) noexcept; // replaceable
void operator delete(void* ptr, std::size_t size) noexcept; // replaceable, C++14
void operator delete(void* ptr, std::align_val_t alignment) noexcept; // replaceable, C++17
void operator delete(void* ptr, std::size_t size,
std::align_val_t alignment) noexcept; // replaceable, C++17
void operator delete(void* ptr, const std::nothrow_t&) noexcept; // replaceable
void operator delete(void* ptr, std:align_val_t alignment,
const std::nothrow_t&) noexcept; // replaceable, C++17
void* operator new[](std::size_t size); // replaceable, nodiscard in C++2a
void* operator new[](std::size_t size,
std::align_val_t alignment) noexcept; // replaceable, C++17, nodiscard in C++2a
void* operator new[](std::size_t size, const std::nothrow_t&) noexcept; // replaceable, nodiscard in C++2a
void* operator new[](std::size_t size, std::align_val_t alignment,
const std::nothrow_t&) noexcept; // replaceable, C++17, nodiscard in C++2a
void operator delete[](void* ptr) noexcept; // replaceable
void operator delete[](void* ptr, std::size_t size) noexcept; // replaceable, C++14
void operator delete[](void* ptr,
std::align_val_t alignment) noexcept; // replaceable, C++17
void operator delete[](void* ptr, std::size_t size,
std::align_val_t alignment) noexcept; // replaceable, C++17
void operator delete[](void* ptr, const std::nothrow_t&) noexcept; // replaceable
void operator delete[](void* ptr, std::align_val_t alignment,
const std::nothrow_t&) noexcept; // replaceable, C++17
void* operator new (std::size_t size, void* ptr) noexcept; // nodiscard in C++2a
void* operator new[](std::size_t size, void* ptr) noexcept; // nodiscard in C++2a
void operator delete (void* ptr, void*) noexcept;
void operator delete[](void* ptr, void*) noexcept;
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/exception"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/version"
#ifdef _LIBCPP_NO_EXCEPTIONS
#include "third_party/libcxx/cstdlib"
#endif
#if defined(_LIBCPP_ABI_VCRUNTIME)
#include "third_party/libcxx/new.h"
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#if !defined(__cpp_sized_deallocation) || __cpp_sized_deallocation < 201309L
#define _LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION
#endif
#if !defined(_LIBCPP_BUILDING_LIBRARY) && _LIBCPP_STD_VER < 14 && \
defined(_LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION)
# define _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION
#endif
#if defined(_LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION) || \
defined(_LIBCPP_HAS_NO_LANGUAGE_SIZED_DEALLOCATION)
# define _LIBCPP_HAS_NO_SIZED_DEALLOCATION
#endif
#if !__has_builtin(__builtin_operator_new) || \
__has_builtin(__builtin_operator_new) < 201802L
#define _LIBCPP_HAS_NO_BUILTIN_OVERLOADED_OPERATOR_NEW_DELETE
#endif
namespace std // purposefully not using versioning namespace
{
#if !defined(_LIBCPP_ABI_VCRUNTIME)
struct _LIBCPP_TYPE_VIS nothrow_t { explicit nothrow_t() = default; };
extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;
class _LIBCPP_EXCEPTION_ABI bad_alloc
: public exception
{
public:
bad_alloc() _NOEXCEPT;
virtual ~bad_alloc() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
class _LIBCPP_EXCEPTION_ABI bad_array_new_length
: public bad_alloc
{
public:
bad_array_new_length() _NOEXCEPT;
virtual ~bad_array_new_length() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
typedef void (*new_handler)();
_LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
_LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;
#endif // !_LIBCPP_ABI_VCRUNTIME
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec
#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION) && \
!defined(_LIBCPP_ABI_VCRUNTIME)
#ifndef _LIBCPP_CXX03_LANG
enum class _LIBCPP_ENUM_VIS align_val_t : size_t { };
#else
enum align_val_t { __zero = 0, __max = (size_t)-1 };
#endif
#endif
#if _LIBCPP_STD_VER > 17
// Enable the declaration even if the compiler doesn't support the language
// feature.
struct destroying_delete_t {
explicit destroying_delete_t() = default;
};
_LIBCPP_INLINE_VAR constexpr destroying_delete_t destroying_delete{};
#endif // _LIBCPP_STD_VER > 17
} // std
#if defined(_LIBCPP_CXX03_LANG)
#define _THROW_BAD_ALLOC throw(std::bad_alloc)
#else
#define _THROW_BAD_ALLOC
#endif
#if !defined(_LIBCPP_ABI_VCRUNTIME)
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p) _NOEXCEPT;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, const std::nothrow_t&) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION
_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete(void* __p, std::size_t __sz) _NOEXCEPT;
#endif
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz) _THROW_BAD_ALLOC;
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p) _NOEXCEPT;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, const std::nothrow_t&) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION
_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete[](void* __p, std::size_t __sz) _NOEXCEPT;
#endif
#ifndef _LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t) _NOEXCEPT;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION
_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete(void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
#endif
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t) _THROW_BAD_ALLOC;
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new[](std::size_t __sz, std::align_val_t, const std::nothrow_t&) _NOEXCEPT _LIBCPP_NOALIAS;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t) _NOEXCEPT;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete[](void* __p, std::align_val_t, const std::nothrow_t&) _NOEXCEPT;
#ifndef _LIBCPP_HAS_NO_LIBRARY_SIZED_DEALLOCATION
_LIBCPP_OVERRIDABLE_FUNC_VIS _LIBCPP_AVAILABILITY_SIZED_NEW_DELETE void operator delete[](void* __p, std::size_t __sz, std::align_val_t) _NOEXCEPT;
#endif
#endif
_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new (std::size_t, void* __p) _NOEXCEPT {return __p;}
_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _NOEXCEPT {return __p;}
inline _LIBCPP_INLINE_VISIBILITY void operator delete (void*, void*) _NOEXCEPT {}
inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void*, void*) _NOEXCEPT {}
#endif // !_LIBCPP_ABI_VCRUNTIME
_LIBCPP_BEGIN_NAMESPACE_STD
_LIBCPP_CONSTEXPR inline _LIBCPP_INLINE_VISIBILITY bool __is_overaligned_for_new(size_t __align) _NOEXCEPT {
#ifdef __STDCPP_DEFAULT_NEW_ALIGNMENT__
return __align > __STDCPP_DEFAULT_NEW_ALIGNMENT__;
#else
return __align > alignment_of<max_align_t>::value;
#endif
}
inline _LIBCPP_INLINE_VISIBILITY void *__libcpp_allocate(size_t __size, size_t __align) {
#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
if (__is_overaligned_for_new(__align)) {
const align_val_t __align_val = static_cast<align_val_t>(__align);
# ifdef _LIBCPP_HAS_NO_BUILTIN_OVERLOADED_OPERATOR_NEW_DELETE
return ::operator new(__size, __align_val);
# else
return __builtin_operator_new(__size, __align_val);
# endif
}
#else
((void)__align);
#endif
#ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
return ::operator new(__size);
#else
return __builtin_operator_new(__size);
#endif
}
struct _DeallocateCaller {
static inline _LIBCPP_INLINE_VISIBILITY
void __do_deallocate_handle_size_align(void *__ptr, size_t __size, size_t __align) {
#if defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION)
((void)__align);
return __do_deallocate_handle_size(__ptr, __size);
#else
if (__is_overaligned_for_new(__align)) {
const align_val_t __align_val = static_cast<align_val_t>(__align);
return __do_deallocate_handle_size(__ptr, __size, __align_val);
} else {
return __do_deallocate_handle_size(__ptr, __size);
}
#endif
}
static inline _LIBCPP_INLINE_VISIBILITY
void __do_deallocate_handle_align(void *__ptr, size_t __align) {
#if defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION)
((void)__align);
return __do_call(__ptr);
#else
if (__is_overaligned_for_new(__align)) {
const align_val_t __align_val = static_cast<align_val_t>(__align);
return __do_call(__ptr, __align_val);
} else {
return __do_call(__ptr);
}
#endif
}
private:
static inline void __do_deallocate_handle_size(void *__ptr, size_t __size) {
#ifdef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
((void)__size);
return __do_call(__ptr);
#else
return __do_call(__ptr, __size);
#endif
}
#ifndef _LIBCPP_HAS_NO_ALIGNED_ALLOCATION
static inline void __do_deallocate_handle_size(void *__ptr, size_t __size, align_val_t __align) {
#ifdef _LIBCPP_HAS_NO_SIZED_DEALLOCATION
((void)__size);
return __do_call(__ptr, __align);
#else
return __do_call(__ptr, __size, __align);
#endif
}
#endif
private:
template <class _A1, class _A2>
static inline void __do_call(void *__ptr, _A1 __a1, _A2 __a2) {
#if defined(_LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE) || \
defined(_LIBCPP_HAS_NO_BUILTIN_OVERLOADED_OPERATOR_NEW_DELETE)
return ::operator delete(__ptr, __a1, __a2);
#else
return __builtin_operator_delete(__ptr, __a1, __a2);
#endif
}
template <class _A1>
static inline void __do_call(void *__ptr, _A1 __a1) {
#if defined(_LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE) || \
defined(_LIBCPP_HAS_NO_BUILTIN_OVERLOADED_OPERATOR_NEW_DELETE)
return ::operator delete(__ptr, __a1);
#else
return __builtin_operator_delete(__ptr, __a1);
#endif
}
static inline void __do_call(void *__ptr) {
#ifdef _LIBCPP_HAS_NO_BUILTIN_OPERATOR_NEW_DELETE
return ::operator delete(__ptr);
#else
return __builtin_operator_delete(__ptr);
#endif
}
};
inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate(void* __ptr, size_t __size, size_t __align) {
_DeallocateCaller::__do_deallocate_handle_size_align(__ptr, __size, __align);
}
inline _LIBCPP_INLINE_VISIBILITY void __libcpp_deallocate_unsized(void* __ptr, size_t __align) {
_DeallocateCaller::__do_deallocate_handle_align(__ptr, __align);
}
template <class _Tp>
_LIBCPP_NODISCARD_AFTER_CXX17 inline
_LIBCPP_CONSTEXPR _Tp* __launder(_Tp* __p) _NOEXCEPT
{
static_assert (!(is_function<_Tp>::value), "can't launder functions" );
static_assert (!(is_same<void, typename remove_cv<_Tp>::type>::value), "can't launder cv-void" );
#ifdef _LIBCPP_COMPILER_HAS_BUILTIN_LAUNDER
return __builtin_launder(__p);
#else
return __p;
#endif
}
#if _LIBCPP_STD_VER > 14
template <class _Tp>
_LIBCPP_NODISCARD_AFTER_CXX17 inline _LIBCPP_INLINE_VISIBILITY
constexpr _Tp* launder(_Tp* __p) noexcept
{
return _VSTD::__launder(__p);
}
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_NEW

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//===--------------------------- new.cpp ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/stdlib.h"
#include "third_party/libcxx/new"
#include "third_party/libcxx/atomic_support.hh"
#include "third_party/libcxx/new_handler_fallback.hh"
namespace std {
#ifndef __GLIBCXX__
const nothrow_t nothrow{};
#endif
#ifndef LIBSTDCXX
void __throw_bad_alloc() {
#ifndef _LIBCPP_NO_EXCEPTIONS
throw bad_alloc();
#else
_VSTD::abort();
#endif
}
#endif // !LIBSTDCXX
} // namespace std
#if !defined(__GLIBCXX__) && !defined(_LIBCPP_ABI_VCRUNTIME) && \
!defined(_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS)
// Implement all new and delete operators as weak definitions
// in this shared library, so that they can be overridden by programs
// that define non-weak copies of the functions.
_LIBCPP_WEAK
void* operator new(std::size_t size) _THROW_BAD_ALLOC {
if (size == 0)
size = 1;
void* p;
while ((p = ::malloc(size)) == 0) {
// If malloc fails and there is a new_handler,
// call it to try free up memory.
std::new_handler nh = std::get_new_handler();
if (nh)
nh();
else
#ifndef _LIBCPP_NO_EXCEPTIONS
throw std::bad_alloc();
#else
break;
#endif
}
return p;
}
_LIBCPP_WEAK
void* operator new(size_t size, const std::nothrow_t&) _NOEXCEPT {
void* p = 0;
#ifndef _LIBCPP_NO_EXCEPTIONS
try {
#endif // _LIBCPP_NO_EXCEPTIONS
p = ::operator new(size);
#ifndef _LIBCPP_NO_EXCEPTIONS
} catch (...) {
}
#endif // _LIBCPP_NO_EXCEPTIONS
return p;
}
_LIBCPP_WEAK
void* operator new[](size_t size) _THROW_BAD_ALLOC {
return ::operator new(size);
}
_LIBCPP_WEAK
void* operator new[](size_t size, const std::nothrow_t&) _NOEXCEPT {
void* p = 0;
#ifndef _LIBCPP_NO_EXCEPTIONS
try {
#endif // _LIBCPP_NO_EXCEPTIONS
p = ::operator new[](size);
#ifndef _LIBCPP_NO_EXCEPTIONS
} catch (...) {
}
#endif // _LIBCPP_NO_EXCEPTIONS
return p;
}
_LIBCPP_WEAK
void operator delete(void* ptr)_NOEXCEPT { ::free(ptr); }
_LIBCPP_WEAK
void operator delete(void* ptr, const std::nothrow_t&)_NOEXCEPT {
::operator delete(ptr);
}
_LIBCPP_WEAK
void operator delete(void* ptr, size_t)_NOEXCEPT { ::operator delete(ptr); }
_LIBCPP_WEAK
void operator delete[](void* ptr) _NOEXCEPT { ::operator delete(ptr); }
_LIBCPP_WEAK
void operator delete[](void* ptr, const std::nothrow_t&) _NOEXCEPT {
::operator delete[](ptr);
}
_LIBCPP_WEAK
void operator delete[](void* ptr, size_t) _NOEXCEPT {
::operator delete[](ptr);
}
#if !defined(_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION)
_LIBCPP_WEAK
void* operator new(std::size_t size,
std::align_val_t alignment) _THROW_BAD_ALLOC {
if (size == 0)
size = 1;
if (static_cast<size_t>(alignment) < sizeof(void*))
alignment = std::align_val_t(sizeof(void*));
void* p;
#if defined(_LIBCPP_MSVCRT_LIKE)
while ((p = _aligned_malloc(size, static_cast<size_t>(alignment))) == nullptr)
#else
while (::posix_memalign(&p, static_cast<size_t>(alignment), size) != 0)
#endif
{
// If posix_memalign fails and there is a new_handler,
// call it to try free up memory.
std::new_handler nh = std::get_new_handler();
if (nh)
nh();
else {
#ifndef _LIBCPP_NO_EXCEPTIONS
throw std::bad_alloc();
#else
p = nullptr; // posix_memalign doesn't initialize 'p' on failure
break;
#endif
}
}
return p;
}
_LIBCPP_WEAK
void* operator new(size_t size, std::align_val_t alignment,
const std::nothrow_t&) _NOEXCEPT {
void* p = 0;
#ifndef _LIBCPP_NO_EXCEPTIONS
try {
#endif // _LIBCPP_NO_EXCEPTIONS
p = ::operator new(size, alignment);
#ifndef _LIBCPP_NO_EXCEPTIONS
} catch (...) {
}
#endif // _LIBCPP_NO_EXCEPTIONS
return p;
}
_LIBCPP_WEAK
void* operator new[](size_t size, std::align_val_t alignment) _THROW_BAD_ALLOC {
return ::operator new(size, alignment);
}
_LIBCPP_WEAK
void* operator new[](size_t size, std::align_val_t alignment,
const std::nothrow_t&) _NOEXCEPT {
void* p = 0;
#ifndef _LIBCPP_NO_EXCEPTIONS
try {
#endif // _LIBCPP_NO_EXCEPTIONS
p = ::operator new[](size, alignment);
#ifndef _LIBCPP_NO_EXCEPTIONS
} catch (...) {
}
#endif // _LIBCPP_NO_EXCEPTIONS
return p;
}
_LIBCPP_WEAK
void operator delete(void* ptr, std::align_val_t)_NOEXCEPT {
#if defined(_LIBCPP_MSVCRT_LIKE)
::_aligned_free(ptr);
#else
::free(ptr);
#endif
}
_LIBCPP_WEAK
void operator delete(void* ptr, std::align_val_t alignment,
const std::nothrow_t&)_NOEXCEPT {
::operator delete(ptr, alignment);
}
_LIBCPP_WEAK
void operator delete(void* ptr, size_t, std::align_val_t alignment)_NOEXCEPT {
::operator delete(ptr, alignment);
}
_LIBCPP_WEAK
void operator delete[](void* ptr, std::align_val_t alignment) _NOEXCEPT {
::operator delete(ptr, alignment);
}
_LIBCPP_WEAK
void operator delete[](void* ptr, std::align_val_t alignment,
const std::nothrow_t&) _NOEXCEPT {
::operator delete[](ptr, alignment);
}
_LIBCPP_WEAK
void operator delete[](void* ptr, size_t,
std::align_val_t alignment) _NOEXCEPT {
::operator delete[](ptr, alignment);
}
#endif // !_LIBCPP_HAS_NO_LIBRARY_ALIGNED_ALLOCATION
#endif // !__GLIBCXX__ && !_LIBCPP_ABI_VCRUNTIME && !_LIBCPP_DISABLE_NEW_DELETE_DEFINITIONS

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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/__config"
#include "third_party/libcxx/new"
#include "third_party/libcxx/atomic_support.hh"
namespace std {
_LIBCPP_SAFE_STATIC static std::new_handler __new_handler;
new_handler set_new_handler(new_handler handler) _NOEXCEPT {
return __libcpp_atomic_exchange(&__new_handler, handler);
}
new_handler get_new_handler() _NOEXCEPT {
return __libcpp_atomic_load(&__new_handler);
}
} // namespace std

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// -*- C++ -*-
//===---------------------------- numeric ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_NUMERIC
#define _LIBCPP_NUMERIC
/*
numeric synopsis
namespace std
{
template <class InputIterator, class T>
T
accumulate(InputIterator first, InputIterator last, T init);
template <class InputIterator, class T, class BinaryOperation>
T
accumulate(InputIterator first, InputIterator last, T init, BinaryOperation binary_op);
template<class InputIterator>
typename iterator_traits<InputIterator>::value_type
reduce(InputIterator first, InputIterator last); // C++17
template<class InputIterator, class T>
T
reduce(InputIterator first, InputIterator last, T init); // C++17
template<class InputIterator, class T, class BinaryOperation>
T
reduce(InputIterator first, InputIterator last, T init, BinaryOperation binary_op); // C++17
template <class InputIterator1, class InputIterator2, class T>
T
inner_product(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2, T init);
template <class InputIterator1, class InputIterator2, class T, class BinaryOperation1, class BinaryOperation2>
T
inner_product(InputIterator1 first1, InputIterator1 last1, InputIterator2 first2,
T init, BinaryOperation1 binary_op1, BinaryOperation2 binary_op2);
template<class InputIterator1, class InputIterator2, class T>
T
transform_reduce(InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, T init); // C++17
template<class InputIterator1, class InputIterator2, class T, class BinaryOperation1, class BinaryOperation2>
T
transform_reduce(InputIterator1 first1, InputIterator1 last1,
InputIterator2 first2, T init,
BinaryOperation1 binary_op1, BinaryOperation2 binary_op2); // C++17
template<class InputIterator, class T, class BinaryOperation, class UnaryOperation>
T
transform_reduce(InputIterator first, InputIterator last, T init,
BinaryOperation binary_op, UnaryOperation unary_op); // C++17
template <class InputIterator, class OutputIterator>
OutputIterator
partial_sum(InputIterator first, InputIterator last, OutputIterator result);
template <class InputIterator, class OutputIterator, class BinaryOperation>
OutputIterator
partial_sum(InputIterator first, InputIterator last, OutputIterator result, BinaryOperation binary_op);
template<class InputIterator, class OutputIterator, class T>
OutputIterator
exclusive_scan(InputIterator first, InputIterator last,
OutputIterator result, T init); // C++17
template<class InputIterator, class OutputIterator, class T, class BinaryOperation>
OutputIterator
exclusive_scan(InputIterator first, InputIterator last,
OutputIterator result, T init, BinaryOperation binary_op); // C++17
template<class InputIterator, class OutputIterator>
OutputIterator
inclusive_scan(InputIterator first, InputIterator last, OutputIterator result); // C++17
template<class InputIterator, class OutputIterator, class BinaryOperation>
OutputIterator
inclusive_scan(InputIterator first, InputIterator last,
OutputIterator result, BinaryOperation binary_op); // C++17
template<class InputIterator, class OutputIterator, class BinaryOperation, class T>
OutputIterator
inclusive_scan(InputIterator first, InputIterator last,
OutputIterator result, BinaryOperation binary_op, T init); // C++17
template<class InputIterator, class OutputIterator, class T,
class BinaryOperation, class UnaryOperation>
OutputIterator
transform_exclusive_scan(InputIterator first, InputIterator last,
OutputIterator result, T init,
BinaryOperation binary_op, UnaryOperation unary_op); // C++17
template<class InputIterator, class OutputIterator,
class BinaryOperation, class UnaryOperation>
OutputIterator
transform_inclusive_scan(InputIterator first, InputIterator last,
OutputIterator result,
BinaryOperation binary_op, UnaryOperation unary_op); // C++17
template<class InputIterator, class OutputIterator,
class BinaryOperation, class UnaryOperation, class T>
OutputIterator
transform_inclusive_scan(InputIterator first, InputIterator last,
OutputIterator result,
BinaryOperation binary_op, UnaryOperation unary_op,
T init); // C++17
template <class InputIterator, class OutputIterator>
OutputIterator
adjacent_difference(InputIterator first, InputIterator last, OutputIterator result);
template <class InputIterator, class OutputIterator, class BinaryOperation>
OutputIterator
adjacent_difference(InputIterator first, InputIterator last, OutputIterator result, BinaryOperation binary_op);
template <class ForwardIterator, class T>
void iota(ForwardIterator first, ForwardIterator last, T value);
template <class M, class N>
constexpr common_type_t<M,N> gcd(M m, N n); // C++17
template <class M, class N>
constexpr common_type_t<M,N> lcm(M m, N n); // C++17
integer midpoint(integer a, integer b); // C++20
pointer midpoint(pointer a, pointer b); // C++20
floating_point midpoint(floating_point a, floating_point b); // C++20
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/iterator"
#include "third_party/libcxx/limits" // for numeric_limits
#include "third_party/libcxx/functional"
#include "third_party/libcxx/cmath" // for isnormal
#include "third_party/libcxx/version"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _InputIterator, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init)
{
for (; __first != __last; ++__first)
__init = __init + *__first;
return __init;
}
template <class _InputIterator, class _Tp, class _BinaryOperation>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op)
{
for (; __first != __last; ++__first)
__init = __binary_op(__init, *__first);
return __init;
}
#if _LIBCPP_STD_VER > 14
template <class _InputIterator, class _Tp, class _BinaryOp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
reduce(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOp __b)
{
for (; __first != __last; ++__first)
__init = __b(__init, *__first);
return __init;
}
template <class _InputIterator, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
reduce(_InputIterator __first, _InputIterator __last, _Tp __init)
{
return _VSTD::reduce(__first, __last, __init, _VSTD::plus<>());
}
template <class _InputIterator>
inline _LIBCPP_INLINE_VISIBILITY
typename iterator_traits<_InputIterator>::value_type
reduce(_InputIterator __first, _InputIterator __last)
{
return _VSTD::reduce(__first, __last,
typename iterator_traits<_InputIterator>::value_type{});
}
#endif
template <class _InputIterator1, class _InputIterator2, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _Tp __init)
{
for (; __first1 != __last1; ++__first1, (void) ++__first2)
__init = __init + *__first1 * *__first2;
return __init;
}
template <class _InputIterator1, class _InputIterator2, class _Tp, class _BinaryOperation1, class _BinaryOperation2>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2,
_Tp __init, _BinaryOperation1 __binary_op1, _BinaryOperation2 __binary_op2)
{
for (; __first1 != __last1; ++__first1, (void) ++__first2)
__init = __binary_op1(__init, __binary_op2(*__first1, *__first2));
return __init;
}
#if _LIBCPP_STD_VER > 14
template <class _InputIterator, class _Tp, class _BinaryOp, class _UnaryOp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
transform_reduce(_InputIterator __first, _InputIterator __last,
_Tp __init, _BinaryOp __b, _UnaryOp __u)
{
for (; __first != __last; ++__first)
__init = __b(__init, __u(*__first));
return __init;
}
template <class _InputIterator1, class _InputIterator2,
class _Tp, class _BinaryOp1, class _BinaryOp2>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
transform_reduce(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init, _BinaryOp1 __b1, _BinaryOp2 __b2)
{
for (; __first1 != __last1; ++__first1, (void) ++__first2)
__init = __b1(__init, __b2(*__first1, *__first2));
return __init;
}
template <class _InputIterator1, class _InputIterator2, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp
transform_reduce(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init)
{
return _VSTD::transform_reduce(__first1, __last1, __first2, _VSTD::move(__init),
_VSTD::plus<>(), _VSTD::multiplies<>());
}
#endif
template <class _InputIterator, class _OutputIterator>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
{
if (__first != __last)
{
typename iterator_traits<_InputIterator>::value_type __t(*__first);
*__result = __t;
for (++__first, (void) ++__result; __first != __last; ++__first, (void) ++__result)
{
__t = __t + *__first;
*__result = __t;
}
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _BinaryOperation>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last, _OutputIterator __result,
_BinaryOperation __binary_op)
{
if (__first != __last)
{
typename iterator_traits<_InputIterator>::value_type __t(*__first);
*__result = __t;
for (++__first, (void) ++__result; __first != __last; ++__first, (void) ++__result)
{
__t = __binary_op(__t, *__first);
*__result = __t;
}
}
return __result;
}
#if _LIBCPP_STD_VER > 14
template <class _InputIterator, class _OutputIterator, class _Tp, class _BinaryOp>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
exclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _Tp __init, _BinaryOp __b)
{
if (__first != __last)
{
_Tp __saved = __init;
do
{
__init = __b(__init, *__first);
*__result = __saved;
__saved = __init;
++__result;
} while (++__first != __last);
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
exclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _Tp __init)
{
return _VSTD::exclusive_scan(__first, __last, __result, __init, _VSTD::plus<>());
}
template <class _InputIterator, class _OutputIterator, class _Tp, class _BinaryOp>
_OutputIterator inclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOp __b, _Tp __init)
{
for (; __first != __last; ++__first, (void) ++__result) {
__init = __b(__init, *__first);
*__result = __init;
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _BinaryOp>
_OutputIterator inclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOp __b)
{
if (__first != __last) {
typename std::iterator_traits<_InputIterator>::value_type __init = *__first;
*__result++ = __init;
if (++__first != __last)
return _VSTD::inclusive_scan(__first, __last, __result, __b, __init);
}
return __result;
}
template <class _InputIterator, class _OutputIterator>
_OutputIterator inclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result)
{
return _VSTD::inclusive_scan(__first, __last, __result, std::plus<>());
}
template <class _InputIterator, class _OutputIterator, class _Tp,
class _BinaryOp, class _UnaryOp>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
transform_exclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _Tp __init,
_BinaryOp __b, _UnaryOp __u)
{
if (__first != __last)
{
_Tp __saved = __init;
do
{
__init = __b(__init, __u(*__first));
*__result = __saved;
__saved = __init;
++__result;
} while (++__first != __last);
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _Tp, class _BinaryOp, class _UnaryOp>
_OutputIterator transform_inclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOp __b, _UnaryOp __u, _Tp __init)
{
for (; __first != __last; ++__first, (void) ++__result) {
__init = __b(__init, __u(*__first));
*__result = __init;
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _BinaryOp, class _UnaryOp>
_OutputIterator transform_inclusive_scan(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOp __b, _UnaryOp __u)
{
if (__first != __last) {
typename std::iterator_traits<_InputIterator>::value_type __init = __u(*__first);
*__result++ = __init;
if (++__first != __last)
return _VSTD::transform_inclusive_scan(__first, __last, __result, __b, __u, __init);
}
return __result;
}
#endif
template <class _InputIterator, class _OutputIterator>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
adjacent_difference(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
{
if (__first != __last)
{
typename iterator_traits<_InputIterator>::value_type __t1(*__first);
*__result = __t1;
for (++__first, (void) ++__result; __first != __last; ++__first, (void) ++__result)
{
typename iterator_traits<_InputIterator>::value_type __t2(*__first);
*__result = __t2 - __t1;
__t1 = _VSTD::move(__t2);
}
}
return __result;
}
template <class _InputIterator, class _OutputIterator, class _BinaryOperation>
inline _LIBCPP_INLINE_VISIBILITY
_OutputIterator
adjacent_difference(_InputIterator __first, _InputIterator __last, _OutputIterator __result,
_BinaryOperation __binary_op)
{
if (__first != __last)
{
typename iterator_traits<_InputIterator>::value_type __t1(*__first);
*__result = __t1;
for (++__first, (void) ++__result; __first != __last; ++__first, (void) ++__result)
{
typename iterator_traits<_InputIterator>::value_type __t2(*__first);
*__result = __binary_op(__t2, __t1);
__t1 = _VSTD::move(__t2);
}
}
return __result;
}
template <class _ForwardIterator, class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
void
iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __value_)
{
for (; __first != __last; ++__first, (void) ++__value_)
*__first = __value_;
}
#if _LIBCPP_STD_VER > 14
template <typename _Result, typename _Source, bool _IsSigned = is_signed<_Source>::value> struct __ct_abs;
template <typename _Result, typename _Source>
struct __ct_abs<_Result, _Source, true> {
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
_Result operator()(_Source __t) const noexcept
{
if (__t >= 0) return __t;
if (__t == numeric_limits<_Source>::min()) return -static_cast<_Result>(__t);
return -__t;
}
};
template <typename _Result, typename _Source>
struct __ct_abs<_Result, _Source, false> {
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
_Result operator()(_Source __t) const noexcept { return __t; }
};
template<class _Tp>
_LIBCPP_CONSTEXPR _LIBCPP_HIDDEN
_Tp __gcd(_Tp __m, _Tp __n)
{
static_assert((!is_signed<_Tp>::value), "");
return __n == 0 ? __m : _VSTD::__gcd<_Tp>(__n, __m % __n);
}
template<class _Tp, class _Up>
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
common_type_t<_Tp,_Up>
gcd(_Tp __m, _Up __n)
{
static_assert((is_integral<_Tp>::value && is_integral<_Up>::value), "Arguments to gcd must be integer types");
static_assert((!is_same<typename remove_cv<_Tp>::type, bool>::value), "First argument to gcd cannot be bool" );
static_assert((!is_same<typename remove_cv<_Up>::type, bool>::value), "Second argument to gcd cannot be bool" );
using _Rp = common_type_t<_Tp,_Up>;
using _Wp = make_unsigned_t<_Rp>;
return static_cast<_Rp>(_VSTD::__gcd(
static_cast<_Wp>(__ct_abs<_Rp, _Tp>()(__m)),
static_cast<_Wp>(__ct_abs<_Rp, _Up>()(__n))));
}
template<class _Tp, class _Up>
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
common_type_t<_Tp,_Up>
lcm(_Tp __m, _Up __n)
{
static_assert((is_integral<_Tp>::value && is_integral<_Up>::value), "Arguments to lcm must be integer types");
static_assert((!is_same<typename remove_cv<_Tp>::type, bool>::value), "First argument to lcm cannot be bool" );
static_assert((!is_same<typename remove_cv<_Up>::type, bool>::value), "Second argument to lcm cannot be bool" );
if (__m == 0 || __n == 0)
return 0;
using _Rp = common_type_t<_Tp,_Up>;
_Rp __val1 = __ct_abs<_Rp, _Tp>()(__m) / _VSTD::gcd(__m, __n);
_Rp __val2 = __ct_abs<_Rp, _Up>()(__n);
_LIBCPP_ASSERT((numeric_limits<_Rp>::max() / __val1 > __val2), "Overflow in lcm");
return __val1 * __val2;
}
#endif /* _LIBCPP_STD_VER > 14 */
#if _LIBCPP_STD_VER > 17
template <class _Tp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<is_integral_v<_Tp> && !is_same_v<bool, _Tp> && !is_null_pointer_v<_Tp>, _Tp>
midpoint(_Tp __a, _Tp __b) noexcept
_LIBCPP_DISABLE_UBSAN_UNSIGNED_INTEGER_CHECK
{
using _Up = std::make_unsigned_t<_Tp>;
int __sign = 1;
_Up __m = __a;
_Up __M = __b;
if (__a > __b)
{
__sign = -1;
__m = __b;
__M = __a;
}
return __a + __sign * _Tp(_Up(__M-__m) >> 1);
}
template <class _TPtr>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<is_pointer_v<_TPtr>
&& is_object_v<remove_pointer_t<_TPtr>>
&& ! is_void_v<remove_pointer_t<_TPtr>>
&& (sizeof(remove_pointer_t<_TPtr>) > 0), _TPtr>
midpoint(_TPtr __a, _TPtr __b) noexcept
{
return __a + _VSTD::midpoint(ptrdiff_t(0), __b - __a);
}
template <typename _Tp>
constexpr int __sign(_Tp __val) {
return (_Tp(0) < __val) - (__val < _Tp(0));
}
template <typename _Fp>
constexpr _Fp __fp_abs(_Fp __f) { return __f >= 0 ? __f : -__f; }
template <class _Fp>
_LIBCPP_INLINE_VISIBILITY constexpr
enable_if_t<is_floating_point_v<_Fp>, _Fp>
midpoint(_Fp __a, _Fp __b) noexcept
{
constexpr _Fp __lo = numeric_limits<_Fp>::min()*2;
constexpr _Fp __hi = numeric_limits<_Fp>::max()/2;
return __fp_abs(__a) <= __hi && __fp_abs(__b) <= __hi ? // typical case: overflow is impossible
(__a + __b)/2 : // always correctly rounded
__fp_abs(__a) < __lo ? __a + __b/2 : // not safe to halve a
__fp_abs(__a) < __lo ? __a/2 + __b : // not safe to halve b
__a/2 + __b/2; // otherwise correctly rounded
}
#endif // _LIBCPP_STD_VER > 17
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#if defined(_LIBCPP_HAS_PARALLEL_ALGORITHMS) && _LIBCPP_STD_VER >= 17
# include "third_party/libcxx/__pstl_numeric"
#endif
#endif // _LIBCPP_NUMERIC

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// -*- C++ -*-
//===--------------------------- queue ------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_QUEUE
#define _LIBCPP_QUEUE
/*
queue synopsis
namespace std
{
template <class T, class Container = deque<T>>
class queue
{
public:
typedef Container container_type;
typedef typename container_type::value_type value_type;
typedef typename container_type::reference reference;
typedef typename container_type::const_reference const_reference;
typedef typename container_type::size_type size_type;
protected:
container_type c;
public:
queue() = default;
~queue() = default;
queue(const queue& q) = default;
queue(queue&& q) = default;
queue& operator=(const queue& q) = default;
queue& operator=(queue&& q) = default;
explicit queue(const container_type& c);
explicit queue(container_type&& c)
template <class Alloc>
explicit queue(const Alloc& a);
template <class Alloc>
queue(const container_type& c, const Alloc& a);
template <class Alloc>
queue(container_type&& c, const Alloc& a);
template <class Alloc>
queue(const queue& q, const Alloc& a);
template <class Alloc>
queue(queue&& q, const Alloc& a);
bool empty() const;
size_type size() const;
reference front();
const_reference front() const;
reference back();
const_reference back() const;
void push(const value_type& v);
void push(value_type&& v);
template <class... Args> reference emplace(Args&&... args); // reference in C++17
void pop();
void swap(queue& q) noexcept(is_nothrow_swappable_v<Container>)
};
template<class Container>
queue(Container) -> queue<typename Container::value_type, Container>; // C++17
template<class Container, class Allocator>
queue(Container, Allocator) -> queue<typename Container::value_type, Container>; // C++17
template <class T, class Container>
bool operator==(const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
bool operator< (const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
bool operator!=(const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
bool operator> (const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
bool operator>=(const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
bool operator<=(const queue<T, Container>& x,const queue<T, Container>& y);
template <class T, class Container>
void swap(queue<T, Container>& x, queue<T, Container>& y)
noexcept(noexcept(x.swap(y)));
template <class T, class Container = vector<T>,
class Compare = less<typename Container::value_type>>
class priority_queue
{
public:
typedef Container container_type;
typedef typename container_type::value_type value_type;
typedef typename container_type::reference reference;
typedef typename container_type::const_reference const_reference;
typedef typename container_type::size_type size_type;
protected:
container_type c;
Compare comp;
public:
priority_queue() = default;
~priority_queue() = default;
priority_queue(const priority_queue& q) = default;
priority_queue(priority_queue&& q) = default;
priority_queue& operator=(const priority_queue& q) = default;
priority_queue& operator=(priority_queue&& q) = default;
explicit priority_queue(const Compare& comp);
priority_queue(const Compare& comp, const container_type& c);
explicit priority_queue(const Compare& comp, container_type&& c);
template <class InputIterator>
priority_queue(InputIterator first, InputIterator last,
const Compare& comp = Compare());
template <class InputIterator>
priority_queue(InputIterator first, InputIterator last,
const Compare& comp, const container_type& c);
template <class InputIterator>
priority_queue(InputIterator first, InputIterator last,
const Compare& comp, container_type&& c);
template <class Alloc>
explicit priority_queue(const Alloc& a);
template <class Alloc>
priority_queue(const Compare& comp, const Alloc& a);
template <class Alloc>
priority_queue(const Compare& comp, const container_type& c,
const Alloc& a);
template <class Alloc>
priority_queue(const Compare& comp, container_type&& c,
const Alloc& a);
template <class Alloc>
priority_queue(const priority_queue& q, const Alloc& a);
template <class Alloc>
priority_queue(priority_queue&& q, const Alloc& a);
bool empty() const;
size_type size() const;
const_reference top() const;
void push(const value_type& v);
void push(value_type&& v);
template <class... Args> void emplace(Args&&... args);
void pop();
void swap(priority_queue& q)
noexcept(is_nothrow_swappable_v<Container> &&
is_nothrow_swappable_v<Comp>)
};
template <class Compare, class Container>
priority_queue(Compare, Container)
-> priority_queue<typename Container::value_type, Container, Compare>; // C++17
template<class InputIterator,
class Compare = less<typename iterator_traits<InputIterator>::value_type>,
class Container = vector<typename iterator_traits<InputIterator>::value_type>>
priority_queue(InputIterator, InputIterator, Compare = Compare(), Container = Container())
-> priority_queue<typename iterator_traits<InputIterator>::value_type, Container, Compare>; // C++17
template<class Compare, class Container, class Allocator>
priority_queue(Compare, Container, Allocator)
-> priority_queue<typename Container::value_type, Container, Compare>; // C++17
template <class T, class Container, class Compare>
void swap(priority_queue<T, Container, Compare>& x,
priority_queue<T, Container, Compare>& y)
noexcept(noexcept(x.swap(y)));
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/deque"
#include "third_party/libcxx/vector"
#include "third_party/libcxx/functional"
#include "third_party/libcxx/algorithm"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, class _Container = deque<_Tp> > class _LIBCPP_TEMPLATE_VIS queue;
template <class _Tp, class _Container>
_LIBCPP_INLINE_VISIBILITY
bool
operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y);
template <class _Tp, class _Container>
_LIBCPP_INLINE_VISIBILITY
bool
operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y);
template <class _Tp, class _Container /*= deque<_Tp>*/>
class _LIBCPP_TEMPLATE_VIS queue
{
public:
typedef _Container container_type;
typedef typename container_type::value_type value_type;
typedef typename container_type::reference reference;
typedef typename container_type::const_reference const_reference;
typedef typename container_type::size_type size_type;
static_assert((is_same<_Tp, value_type>::value), "" );
protected:
container_type c;
public:
_LIBCPP_INLINE_VISIBILITY
queue()
_NOEXCEPT_(is_nothrow_default_constructible<container_type>::value)
: c() {}
_LIBCPP_INLINE_VISIBILITY
queue(const queue& __q) : c(__q.c) {}
_LIBCPP_INLINE_VISIBILITY
queue& operator=(const queue& __q) {c = __q.c; return *this;}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
queue(queue&& __q)
_NOEXCEPT_(is_nothrow_move_constructible<container_type>::value)
: c(_VSTD::move(__q.c)) {}
_LIBCPP_INLINE_VISIBILITY
queue& operator=(queue&& __q)
_NOEXCEPT_(is_nothrow_move_assignable<container_type>::value)
{c = _VSTD::move(__q.c); return *this;}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
explicit queue(const container_type& __c) : c(__c) {}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
explicit queue(container_type&& __c) : c(_VSTD::move(__c)) {}
#endif // _LIBCPP_CXX03_LANG
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
explicit queue(const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0)
: c(__a) {}
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
queue(const queue& __q, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0)
: c(__q.c, __a) {}
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
queue(const container_type& __c, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0)
: c(__c, __a) {}
#ifndef _LIBCPP_CXX03_LANG
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
queue(container_type&& __c, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0)
: c(_VSTD::move(__c), __a) {}
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
queue(queue&& __q, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0)
: c(_VSTD::move(__q.c), __a) {}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
bool empty() const {return c.empty();}
_LIBCPP_INLINE_VISIBILITY
size_type size() const {return c.size();}
_LIBCPP_INLINE_VISIBILITY
reference front() {return c.front();}
_LIBCPP_INLINE_VISIBILITY
const_reference front() const {return c.front();}
_LIBCPP_INLINE_VISIBILITY
reference back() {return c.back();}
_LIBCPP_INLINE_VISIBILITY
const_reference back() const {return c.back();}
_LIBCPP_INLINE_VISIBILITY
void push(const value_type& __v) {c.push_back(__v);}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void push(value_type&& __v) {c.push_back(_VSTD::move(__v));}
template <class... _Args>
_LIBCPP_INLINE_VISIBILITY
#if _LIBCPP_STD_VER > 14
decltype(auto) emplace(_Args&&... __args)
{ return c.emplace_back(_VSTD::forward<_Args>(__args)...);}
#else
void emplace(_Args&&... __args)
{ c.emplace_back(_VSTD::forward<_Args>(__args)...);}
#endif
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void pop() {c.pop_front();}
_LIBCPP_INLINE_VISIBILITY
void swap(queue& __q)
_NOEXCEPT_(__is_nothrow_swappable<container_type>::value)
{
using _VSTD::swap;
swap(c, __q.c);
}
template <class _T1, class _C1>
friend
_LIBCPP_INLINE_VISIBILITY
bool
operator==(const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y);
template <class _T1, class _C1>
friend
_LIBCPP_INLINE_VISIBILITY
bool
operator< (const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y);
};
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template<class _Container,
class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type
>
queue(_Container)
-> queue<typename _Container::value_type, _Container>;
template<class _Container,
class _Alloc,
class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type,
class = typename enable_if< __is_allocator<_Alloc>::value, nullptr_t>::type
>
queue(_Container, _Alloc)
-> queue<typename _Container::value_type, _Container>;
#endif
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return __x.c == __y.c;
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return __x.c < __y.c;
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return !(__x == __y);
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator> (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return __y < __x;
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator>=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return !(__x < __y);
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
{
return !(__y < __x);
}
template <class _Tp, class _Container>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if<
__is_swappable<_Container>::value,
void
>::type
swap(queue<_Tp, _Container>& __x, queue<_Tp, _Container>& __y)
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
{
__x.swap(__y);
}
template <class _Tp, class _Container, class _Alloc>
struct _LIBCPP_TEMPLATE_VIS uses_allocator<queue<_Tp, _Container>, _Alloc>
: public uses_allocator<_Container, _Alloc>
{
};
template <class _Tp, class _Container = vector<_Tp>,
class _Compare = less<typename _Container::value_type> >
class _LIBCPP_TEMPLATE_VIS priority_queue
{
public:
typedef _Container container_type;
typedef _Compare value_compare;
typedef typename container_type::value_type value_type;
typedef typename container_type::reference reference;
typedef typename container_type::const_reference const_reference;
typedef typename container_type::size_type size_type;
static_assert((is_same<_Tp, value_type>::value), "" );
protected:
container_type c;
value_compare comp;
public:
_LIBCPP_INLINE_VISIBILITY
priority_queue()
_NOEXCEPT_(is_nothrow_default_constructible<container_type>::value &&
is_nothrow_default_constructible<value_compare>::value)
: c(), comp() {}
_LIBCPP_INLINE_VISIBILITY
priority_queue(const priority_queue& __q) : c(__q.c), comp(__q.comp) {}
_LIBCPP_INLINE_VISIBILITY
priority_queue& operator=(const priority_queue& __q)
{c = __q.c; comp = __q.comp; return *this;}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
priority_queue(priority_queue&& __q)
_NOEXCEPT_(is_nothrow_move_constructible<container_type>::value &&
is_nothrow_move_constructible<value_compare>::value)
: c(_VSTD::move(__q.c)), comp(_VSTD::move(__q.comp)) {}
_LIBCPP_INLINE_VISIBILITY
priority_queue& operator=(priority_queue&& __q)
_NOEXCEPT_(is_nothrow_move_assignable<container_type>::value &&
is_nothrow_move_assignable<value_compare>::value)
{c = _VSTD::move(__q.c); comp = _VSTD::move(__q.comp); return *this;}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
explicit priority_queue(const value_compare& __comp)
: c(), comp(__comp) {}
_LIBCPP_INLINE_VISIBILITY
priority_queue(const value_compare& __comp, const container_type& __c);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
explicit priority_queue(const value_compare& __comp, container_type&& __c);
#endif
template <class _InputIter>
_LIBCPP_INLINE_VISIBILITY
priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp = value_compare());
template <class _InputIter>
_LIBCPP_INLINE_VISIBILITY
priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp, const container_type& __c);
#ifndef _LIBCPP_CXX03_LANG
template <class _InputIter>
_LIBCPP_INLINE_VISIBILITY
priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp, container_type&& __c);
#endif // _LIBCPP_CXX03_LANG
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
explicit priority_queue(const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
priority_queue(const value_compare& __comp, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
priority_queue(const value_compare& __comp, const container_type& __c,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
priority_queue(const priority_queue& __q, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
#ifndef _LIBCPP_CXX03_LANG
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
priority_queue(const value_compare& __comp, container_type&& __c,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
template <class _Alloc>
_LIBCPP_INLINE_VISIBILITY
priority_queue(priority_queue&& __q, const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type* = 0);
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
bool empty() const {return c.empty();}
_LIBCPP_INLINE_VISIBILITY
size_type size() const {return c.size();}
_LIBCPP_INLINE_VISIBILITY
const_reference top() const {return c.front();}
_LIBCPP_INLINE_VISIBILITY
void push(const value_type& __v);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void push(value_type&& __v);
template <class... _Args>
_LIBCPP_INLINE_VISIBILITY
void emplace(_Args&&... __args);
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void pop();
_LIBCPP_INLINE_VISIBILITY
void swap(priority_queue& __q)
_NOEXCEPT_(__is_nothrow_swappable<container_type>::value &&
__is_nothrow_swappable<value_compare>::value);
};
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
template <class _Compare,
class _Container,
class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type,
class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type
>
priority_queue(_Compare, _Container)
-> priority_queue<typename _Container::value_type, _Container, _Compare>;
template<class _InputIterator,
class _Compare = less<typename iterator_traits<_InputIterator>::value_type>,
class _Container = vector<typename iterator_traits<_InputIterator>::value_type>,
class = typename enable_if< __is_input_iterator<_InputIterator>::value, nullptr_t>::type,
class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type,
class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type
>
priority_queue(_InputIterator, _InputIterator, _Compare = _Compare(), _Container = _Container())
-> priority_queue<typename iterator_traits<_InputIterator>::value_type, _Container, _Compare>;
template<class _Compare,
class _Container,
class _Alloc,
class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type,
class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type,
class = typename enable_if< __is_allocator<_Alloc>::value, nullptr_t>::type
>
priority_queue(_Compare, _Container, _Alloc)
-> priority_queue<typename _Container::value_type, _Container, _Compare>;
#endif
template <class _Tp, class _Container, class _Compare>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Compare& __comp,
const container_type& __c)
: c(__c),
comp(__comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
container_type&& __c)
: c(_VSTD::move(__c)),
comp(__comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
template <class _InputIter>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp)
: c(__f, __l),
comp(__comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
template <class _Tp, class _Container, class _Compare>
template <class _InputIter>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp,
const container_type& __c)
: c(__c),
comp(__comp)
{
c.insert(c.end(), __f, __l);
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
template <class _InputIter>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
const value_compare& __comp,
container_type&& __c)
: c(_VSTD::move(__c)),
comp(__comp)
{
c.insert(c.end(), __f, __l);
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(__a)
{
}
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(__a),
comp(__comp)
{
}
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
const container_type& __c,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(__c, __a),
comp(__comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const priority_queue& __q,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(__q.c, __a),
comp(__q.comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
container_type&& __c,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(_VSTD::move(__c), __a),
comp(__comp)
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
template <class _Tp, class _Container, class _Compare>
template <class _Alloc>
inline
priority_queue<_Tp, _Container, _Compare>::priority_queue(priority_queue&& __q,
const _Alloc& __a,
typename enable_if<uses_allocator<container_type,
_Alloc>::value>::type*)
: c(_VSTD::move(__q.c), __a),
comp(_VSTD::move(__q.comp))
{
_VSTD::make_heap(c.begin(), c.end(), comp);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
inline
void
priority_queue<_Tp, _Container, _Compare>::push(const value_type& __v)
{
c.push_back(__v);
_VSTD::push_heap(c.begin(), c.end(), comp);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
inline
void
priority_queue<_Tp, _Container, _Compare>::push(value_type&& __v)
{
c.push_back(_VSTD::move(__v));
_VSTD::push_heap(c.begin(), c.end(), comp);
}
template <class _Tp, class _Container, class _Compare>
template <class... _Args>
inline
void
priority_queue<_Tp, _Container, _Compare>::emplace(_Args&&... __args)
{
c.emplace_back(_VSTD::forward<_Args>(__args)...);
_VSTD::push_heap(c.begin(), c.end(), comp);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Container, class _Compare>
inline
void
priority_queue<_Tp, _Container, _Compare>::pop()
{
_VSTD::pop_heap(c.begin(), c.end(), comp);
c.pop_back();
}
template <class _Tp, class _Container, class _Compare>
inline
void
priority_queue<_Tp, _Container, _Compare>::swap(priority_queue& __q)
_NOEXCEPT_(__is_nothrow_swappable<container_type>::value &&
__is_nothrow_swappable<value_compare>::value)
{
using _VSTD::swap;
swap(c, __q.c);
swap(comp, __q.comp);
}
template <class _Tp, class _Container, class _Compare>
inline _LIBCPP_INLINE_VISIBILITY
typename enable_if<
__is_swappable<_Container>::value
&& __is_swappable<_Compare>::value,
void
>::type
swap(priority_queue<_Tp, _Container, _Compare>& __x,
priority_queue<_Tp, _Container, _Compare>& __y)
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
{
__x.swap(__y);
}
template <class _Tp, class _Container, class _Compare, class _Alloc>
struct _LIBCPP_TEMPLATE_VIS uses_allocator<priority_queue<_Tp, _Container, _Compare>, _Alloc>
: public uses_allocator<_Container, _Alloc>
{
};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_QUEUE

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//===-------------------------- random.cpp --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/__config"
#if defined(_LIBCPP_USING_WIN32_RANDOM)
// Must be defined before including stdlib.h to enable rand_s().
#define _CRT_RAND_S
#endif // defined(_LIBCPP_USING_WIN32_RANDOM)
#include "third_party/libcxx/random"
#include "third_party/libcxx/system_error"
#if defined(__sun__)
#define rename solaris_headers_are_broken
#endif // defined(__sun__)
#include "third_party/libcxx/errno.h"
#include "third_party/libcxx/stdio.h"
#include "third_party/libcxx/stdlib.h"
#if defined(_LIBCPP_USING_GETENTROPY)
#include "libc/isystem/sys/random.h"
#elif defined(_LIBCPP_USING_DEV_RANDOM)
#include "third_party/libcxx/fcntl.h"
#include "third_party/libcxx/unistd.h"
#elif defined(_LIBCPP_USING_NACL_RANDOM)
#include "third_party/libcxx/nacl/nacl_random.h"
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if defined(_LIBCPP_USING_GETENTROPY)
random_device::random_device(const string& __token) {
if (__token != "/dev/urandom")
__throw_system_error(ENOENT,
("random device not supported " + __token).c_str());
}
random_device::~random_device() {}
unsigned random_device::operator()() {
unsigned r;
size_t n = sizeof(r);
int err = getentropy(&r, n);
if (err)
__throw_system_error(errno, "random_device getentropy failed");
return r;
}
#elif defined(_LIBCPP_USING_ARC4_RANDOM)
random_device::random_device(const string& __token) {
if (__token != "/dev/urandom")
__throw_system_error(ENOENT,
("random device not supported " + __token).c_str());
}
random_device::~random_device() {}
unsigned random_device::operator()() { return arc4random(); }
#elif defined(_LIBCPP_USING_DEV_RANDOM)
random_device::random_device(const string& __token)
: __f_(open(__token.c_str(), O_RDONLY)) {
if (__f_ < 0)
__throw_system_error(errno,
("random_device failed to open " + __token).c_str());
}
random_device::~random_device() { close(__f_); }
unsigned random_device::operator()() {
unsigned r;
size_t n = sizeof(r);
char* p = reinterpret_cast<char*>(&r);
while (n > 0) {
ssize_t s = read(__f_, p, n);
if (s == 0)
__throw_system_error(ENODATA, "random_device got EOF");
if (s == -1) {
if (errno != EINTR)
__throw_system_error(errno, "random_device got an unexpected error");
continue;
}
n -= static_cast<size_t>(s);
p += static_cast<size_t>(s);
}
return r;
}
#elif defined(_LIBCPP_USING_NACL_RANDOM)
random_device::random_device(const string& __token) {
if (__token != "/dev/urandom")
__throw_system_error(ENOENT,
("random device not supported " + __token).c_str());
int error = nacl_secure_random_init();
if (error)
__throw_system_error(error,
("random device failed to open " + __token).c_str());
}
random_device::~random_device() {}
unsigned random_device::operator()() {
unsigned r;
size_t n = sizeof(r);
size_t bytes_written;
int error = nacl_secure_random(&r, n, &bytes_written);
if (error != 0)
__throw_system_error(error, "random_device failed getting bytes");
else if (bytes_written != n)
__throw_runtime_error("random_device failed to obtain enough bytes");
return r;
}
#elif defined(_LIBCPP_USING_WIN32_RANDOM)
random_device::random_device(const string& __token) {
if (__token != "/dev/urandom")
__throw_system_error(ENOENT,
("random device not supported " + __token).c_str());
}
random_device::~random_device() {}
unsigned random_device::operator()() {
unsigned r;
errno_t err = rand_s(&r);
if (err)
__throw_system_error(err, "random_device rand_s failed.");
return r;
}
#else
#error "Random device not implemented for this architecture"
#endif
double random_device::entropy() const _NOEXCEPT { return 0; }
_LIBCPP_END_NAMESPACE_STD

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// -*- C++ -*-
//===---------------------------- ratio -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_RATIO
#define _LIBCPP_RATIO
/*
ratio synopsis
namespace std
{
template <intmax_t N, intmax_t D = 1>
class ratio
{
public:
static constexpr intmax_t num;
static constexpr intmax_t den;
typedef ratio<num, den> type;
};
// ratio arithmetic
template <class R1, class R2> using ratio_add = ...;
template <class R1, class R2> using ratio_subtract = ...;
template <class R1, class R2> using ratio_multiply = ...;
template <class R1, class R2> using ratio_divide = ...;
// ratio comparison
template <class R1, class R2> struct ratio_equal;
template <class R1, class R2> struct ratio_not_equal;
template <class R1, class R2> struct ratio_less;
template <class R1, class R2> struct ratio_less_equal;
template <class R1, class R2> struct ratio_greater;
template <class R1, class R2> struct ratio_greater_equal;
// convenience SI typedefs
typedef ratio<1, 1000000000000000000000000> yocto; // not supported
typedef ratio<1, 1000000000000000000000> zepto; // not supported
typedef ratio<1, 1000000000000000000> atto;
typedef ratio<1, 1000000000000000> femto;
typedef ratio<1, 1000000000000> pico;
typedef ratio<1, 1000000000> nano;
typedef ratio<1, 1000000> micro;
typedef ratio<1, 1000> milli;
typedef ratio<1, 100> centi;
typedef ratio<1, 10> deci;
typedef ratio< 10, 1> deca;
typedef ratio< 100, 1> hecto;
typedef ratio< 1000, 1> kilo;
typedef ratio< 1000000, 1> mega;
typedef ratio< 1000000000, 1> giga;
typedef ratio< 1000000000000, 1> tera;
typedef ratio< 1000000000000000, 1> peta;
typedef ratio< 1000000000000000000, 1> exa;
typedef ratio< 1000000000000000000000, 1> zetta; // not supported
typedef ratio<1000000000000000000000000, 1> yotta; // not supported
// 20.11.5, ratio comparison
template <class R1, class R2> inline constexpr bool ratio_equal_v
= ratio_equal<R1, R2>::value; // C++17
template <class R1, class R2> inline constexpr bool ratio_not_equal_v
= ratio_not_equal<R1, R2>::value; // C++17
template <class R1, class R2> inline constexpr bool ratio_less_v
= ratio_less<R1, R2>::value; // C++17
template <class R1, class R2> inline constexpr bool ratio_less_equal_v
= ratio_less_equal<R1, R2>::value; // C++17
template <class R1, class R2> inline constexpr bool ratio_greater_v
= ratio_greater<R1, R2>::value; // C++17
template <class R1, class R2> inline constexpr bool ratio_greater_equal_v
= ratio_greater_equal<R1, R2>::value; // C++17
}
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/cstdint"
#include "third_party/libcxx/climits"
#include "third_party/libcxx/type_traits"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
// __static_gcd
template <intmax_t _Xp, intmax_t _Yp>
struct __static_gcd
{
static const intmax_t value = __static_gcd<_Yp, _Xp % _Yp>::value;
};
template <intmax_t _Xp>
struct __static_gcd<_Xp, 0>
{
static const intmax_t value = _Xp;
};
template <>
struct __static_gcd<0, 0>
{
static const intmax_t value = 1;
};
// __static_lcm
template <intmax_t _Xp, intmax_t _Yp>
struct __static_lcm
{
static const intmax_t value = _Xp / __static_gcd<_Xp, _Yp>::value * _Yp;
};
template <intmax_t _Xp>
struct __static_abs
{
static const intmax_t value = _Xp < 0 ? -_Xp : _Xp;
};
template <intmax_t _Xp>
struct __static_sign
{
static const intmax_t value = _Xp == 0 ? 0 : (_Xp < 0 ? -1 : 1);
};
template <intmax_t _Xp, intmax_t _Yp, intmax_t = __static_sign<_Yp>::value>
class __ll_add;
template <intmax_t _Xp, intmax_t _Yp>
class __ll_add<_Xp, _Yp, 1>
{
static const intmax_t min = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1;
static const intmax_t max = -min;
static_assert(_Xp <= max - _Yp, "overflow in __ll_add");
public:
static const intmax_t value = _Xp + _Yp;
};
template <intmax_t _Xp, intmax_t _Yp>
class __ll_add<_Xp, _Yp, 0>
{
public:
static const intmax_t value = _Xp;
};
template <intmax_t _Xp, intmax_t _Yp>
class __ll_add<_Xp, _Yp, -1>
{
static const intmax_t min = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1;
static const intmax_t max = -min;
static_assert(min - _Yp <= _Xp, "overflow in __ll_add");
public:
static const intmax_t value = _Xp + _Yp;
};
template <intmax_t _Xp, intmax_t _Yp, intmax_t = __static_sign<_Yp>::value>
class __ll_sub;
template <intmax_t _Xp, intmax_t _Yp>
class __ll_sub<_Xp, _Yp, 1>
{
static const intmax_t min = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1;
static const intmax_t max = -min;
static_assert(min + _Yp <= _Xp, "overflow in __ll_sub");
public:
static const intmax_t value = _Xp - _Yp;
};
template <intmax_t _Xp, intmax_t _Yp>
class __ll_sub<_Xp, _Yp, 0>
{
public:
static const intmax_t value = _Xp;
};
template <intmax_t _Xp, intmax_t _Yp>
class __ll_sub<_Xp, _Yp, -1>
{
static const intmax_t min = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1)) + 1;
static const intmax_t max = -min;
static_assert(_Xp <= max + _Yp, "overflow in __ll_sub");
public:
static const intmax_t value = _Xp - _Yp;
};
template <intmax_t _Xp, intmax_t _Yp>
class __ll_mul
{
static const intmax_t nan = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1));
static const intmax_t min = nan + 1;
static const intmax_t max = -min;
static const intmax_t __a_x = __static_abs<_Xp>::value;
static const intmax_t __a_y = __static_abs<_Yp>::value;
static_assert(_Xp != nan && _Yp != nan && __a_x <= max / __a_y, "overflow in __ll_mul");
public:
static const intmax_t value = _Xp * _Yp;
};
template <intmax_t _Yp>
class __ll_mul<0, _Yp>
{
public:
static const intmax_t value = 0;
};
template <intmax_t _Xp>
class __ll_mul<_Xp, 0>
{
public:
static const intmax_t value = 0;
};
template <>
class __ll_mul<0, 0>
{
public:
static const intmax_t value = 0;
};
// Not actually used but left here in case needed in future maintenance
template <intmax_t _Xp, intmax_t _Yp>
class __ll_div
{
static const intmax_t nan = (1LL << (sizeof(intmax_t) * CHAR_BIT - 1));
static const intmax_t min = nan + 1;
static const intmax_t max = -min;
static_assert(_Xp != nan && _Yp != nan && _Yp != 0, "overflow in __ll_div");
public:
static const intmax_t value = _Xp / _Yp;
};
template <intmax_t _Num, intmax_t _Den = 1>
class _LIBCPP_TEMPLATE_VIS ratio
{
static_assert(__static_abs<_Num>::value >= 0, "ratio numerator is out of range");
static_assert(_Den != 0, "ratio divide by 0");
static_assert(__static_abs<_Den>::value > 0, "ratio denominator is out of range");
static _LIBCPP_CONSTEXPR const intmax_t __na = __static_abs<_Num>::value;
static _LIBCPP_CONSTEXPR const intmax_t __da = __static_abs<_Den>::value;
static _LIBCPP_CONSTEXPR const intmax_t __s = __static_sign<_Num>::value * __static_sign<_Den>::value;
static _LIBCPP_CONSTEXPR const intmax_t __gcd = __static_gcd<__na, __da>::value;
public:
static _LIBCPP_CONSTEXPR const intmax_t num = __s * __na / __gcd;
static _LIBCPP_CONSTEXPR const intmax_t den = __da / __gcd;
typedef ratio<num, den> type;
};
template <intmax_t _Num, intmax_t _Den>
_LIBCPP_CONSTEXPR const intmax_t ratio<_Num, _Den>::num;
template <intmax_t _Num, intmax_t _Den>
_LIBCPP_CONSTEXPR const intmax_t ratio<_Num, _Den>::den;
template <class _Tp> struct __is_ratio : false_type {};
template <intmax_t _Num, intmax_t _Den> struct __is_ratio<ratio<_Num, _Den> > : true_type {};
typedef ratio<1LL, 1000000000000000000LL> atto;
typedef ratio<1LL, 1000000000000000LL> femto;
typedef ratio<1LL, 1000000000000LL> pico;
typedef ratio<1LL, 1000000000LL> nano;
typedef ratio<1LL, 1000000LL> micro;
typedef ratio<1LL, 1000LL> milli;
typedef ratio<1LL, 100LL> centi;
typedef ratio<1LL, 10LL> deci;
typedef ratio< 10LL, 1LL> deca;
typedef ratio< 100LL, 1LL> hecto;
typedef ratio< 1000LL, 1LL> kilo;
typedef ratio< 1000000LL, 1LL> mega;
typedef ratio< 1000000000LL, 1LL> giga;
typedef ratio< 1000000000000LL, 1LL> tera;
typedef ratio< 1000000000000000LL, 1LL> peta;
typedef ratio<1000000000000000000LL, 1LL> exa;
template <class _R1, class _R2>
struct __ratio_multiply
{
private:
static const intmax_t __gcd_n1_d2 = __static_gcd<_R1::num, _R2::den>::value;
static const intmax_t __gcd_d1_n2 = __static_gcd<_R1::den, _R2::num>::value;
public:
typedef typename ratio
<
__ll_mul<_R1::num / __gcd_n1_d2, _R2::num / __gcd_d1_n2>::value,
__ll_mul<_R2::den / __gcd_n1_d2, _R1::den / __gcd_d1_n2>::value
>::type type;
};
#ifndef _LIBCPP_CXX03_LANG
template <class _R1, class _R2> using ratio_multiply
= typename __ratio_multiply<_R1, _R2>::type;
#else // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_multiply
: public __ratio_multiply<_R1, _R2>::type {};
#endif // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct __ratio_divide
{
private:
static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value;
static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value;
public:
typedef typename ratio
<
__ll_mul<_R1::num / __gcd_n1_n2, _R2::den / __gcd_d1_d2>::value,
__ll_mul<_R2::num / __gcd_n1_n2, _R1::den / __gcd_d1_d2>::value
>::type type;
};
#ifndef _LIBCPP_CXX03_LANG
template <class _R1, class _R2> using ratio_divide
= typename __ratio_divide<_R1, _R2>::type;
#else // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_divide
: public __ratio_divide<_R1, _R2>::type {};
#endif // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct __ratio_add
{
private:
static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value;
static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value;
public:
typedef typename ratio_multiply
<
ratio<__gcd_n1_n2, _R1::den / __gcd_d1_d2>,
ratio
<
__ll_add
<
__ll_mul<_R1::num / __gcd_n1_n2, _R2::den / __gcd_d1_d2>::value,
__ll_mul<_R2::num / __gcd_n1_n2, _R1::den / __gcd_d1_d2>::value
>::value,
_R2::den
>
>::type type;
};
#ifndef _LIBCPP_CXX03_LANG
template <class _R1, class _R2> using ratio_add
= typename __ratio_add<_R1, _R2>::type;
#else // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_add
: public __ratio_add<_R1, _R2>::type {};
#endif // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct __ratio_subtract
{
private:
static const intmax_t __gcd_n1_n2 = __static_gcd<_R1::num, _R2::num>::value;
static const intmax_t __gcd_d1_d2 = __static_gcd<_R1::den, _R2::den>::value;
public:
typedef typename ratio_multiply
<
ratio<__gcd_n1_n2, _R1::den / __gcd_d1_d2>,
ratio
<
__ll_sub
<
__ll_mul<_R1::num / __gcd_n1_n2, _R2::den / __gcd_d1_d2>::value,
__ll_mul<_R2::num / __gcd_n1_n2, _R1::den / __gcd_d1_d2>::value
>::value,
_R2::den
>
>::type type;
};
#ifndef _LIBCPP_CXX03_LANG
template <class _R1, class _R2> using ratio_subtract
= typename __ratio_subtract<_R1, _R2>::type;
#else // _LIBCPP_CXX03_LANG
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_subtract
: public __ratio_subtract<_R1, _R2>::type {};
#endif // _LIBCPP_CXX03_LANG
// ratio_equal
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_equal
: public _LIBCPP_BOOL_CONSTANT((_R1::num == _R2::num && _R1::den == _R2::den)) {};
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_not_equal
: public _LIBCPP_BOOL_CONSTANT((!ratio_equal<_R1, _R2>::value)) {};
// ratio_less
template <class _R1, class _R2, bool _Odd = false,
intmax_t _Q1 = _R1::num / _R1::den, intmax_t _M1 = _R1::num % _R1::den,
intmax_t _Q2 = _R2::num / _R2::den, intmax_t _M2 = _R2::num % _R2::den>
struct __ratio_less1
{
static const bool value = _Odd ? _Q2 < _Q1 : _Q1 < _Q2;
};
template <class _R1, class _R2, bool _Odd, intmax_t _Qp>
struct __ratio_less1<_R1, _R2, _Odd, _Qp, 0, _Qp, 0>
{
static const bool value = false;
};
template <class _R1, class _R2, bool _Odd, intmax_t _Qp, intmax_t _M2>
struct __ratio_less1<_R1, _R2, _Odd, _Qp, 0, _Qp, _M2>
{
static const bool value = !_Odd;
};
template <class _R1, class _R2, bool _Odd, intmax_t _Qp, intmax_t _M1>
struct __ratio_less1<_R1, _R2, _Odd, _Qp, _M1, _Qp, 0>
{
static const bool value = _Odd;
};
template <class _R1, class _R2, bool _Odd, intmax_t _Qp, intmax_t _M1,
intmax_t _M2>
struct __ratio_less1<_R1, _R2, _Odd, _Qp, _M1, _Qp, _M2>
{
static const bool value = __ratio_less1<ratio<_R1::den, _M1>,
ratio<_R2::den, _M2>, !_Odd>::value;
};
template <class _R1, class _R2, intmax_t _S1 = __static_sign<_R1::num>::value,
intmax_t _S2 = __static_sign<_R2::num>::value>
struct __ratio_less
{
static const bool value = _S1 < _S2;
};
template <class _R1, class _R2>
struct __ratio_less<_R1, _R2, 1LL, 1LL>
{
static const bool value = __ratio_less1<_R1, _R2>::value;
};
template <class _R1, class _R2>
struct __ratio_less<_R1, _R2, -1LL, -1LL>
{
static const bool value = __ratio_less1<ratio<-_R2::num, _R2::den>, ratio<-_R1::num, _R1::den> >::value;
};
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_less
: public _LIBCPP_BOOL_CONSTANT((__ratio_less<_R1, _R2>::value)) {};
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_less_equal
: public _LIBCPP_BOOL_CONSTANT((!ratio_less<_R2, _R1>::value)) {};
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_greater
: public _LIBCPP_BOOL_CONSTANT((ratio_less<_R2, _R1>::value)) {};
template <class _R1, class _R2>
struct _LIBCPP_TEMPLATE_VIS ratio_greater_equal
: public _LIBCPP_BOOL_CONSTANT((!ratio_less<_R1, _R2>::value)) {};
template <class _R1, class _R2>
struct __ratio_gcd
{
typedef ratio<__static_gcd<_R1::num, _R2::num>::value,
__static_lcm<_R1::den, _R2::den>::value> type;
};
#if _LIBCPP_STD_VER > 14 && !defined(_LIBCPP_HAS_NO_VARIABLE_TEMPLATES)
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_equal_v
= ratio_equal<_R1, _R2>::value;
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_not_equal_v
= ratio_not_equal<_R1, _R2>::value;
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_less_v
= ratio_less<_R1, _R2>::value;
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_less_equal_v
= ratio_less_equal<_R1, _R2>::value;
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_greater_v
= ratio_greater<_R1, _R2>::value;
template <class _R1, class _R2>
_LIBCPP_INLINE_VAR _LIBCPP_CONSTEXPR bool ratio_greater_equal_v
= ratio_greater_equal<_R1, _R2>::value;
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_RATIO

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//===------------------------ __refstring ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_REFSTRING_H
#define _LIBCPP_REFSTRING_H
#include "third_party/libcxx/__config"
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/cstring"
#include "third_party/libcxx/atomic_support.hh"
_LIBCPP_BEGIN_NAMESPACE_STD
namespace __refstring_imp {
namespace {
typedef int count_t;
struct _Rep_base {
std::size_t len;
std::size_t cap;
count_t count;
};
inline _Rep_base* rep_from_data(const char* data_) noexcept {
char* data = const_cast<char*>(data_);
return reinterpret_cast<_Rep_base*>(data - sizeof(_Rep_base));
}
inline char* data_from_rep(_Rep_base* rep) noexcept {
char* data = reinterpret_cast<char*>(rep);
return data + sizeof(*rep);
}
#if defined(__APPLE__)
inline const char* compute_gcc_empty_string_storage() _NOEXCEPT {
void* handle = dlopen("/usr/lib/libstdc++.6.dylib", RTLD_NOLOAD);
if (handle == nullptr)
return nullptr;
void* sym = dlsym(handle, "_ZNSs4_Rep20_S_empty_rep_storageE");
if (sym == nullptr)
return nullptr;
return data_from_rep(reinterpret_cast<_Rep_base*>(sym));
}
inline const char* get_gcc_empty_string_storage() _NOEXCEPT {
static const char* p = compute_gcc_empty_string_storage();
return p;
}
#endif
} // namespace
} // namespace __refstring_imp
using namespace __refstring_imp;
inline __libcpp_refstring::__libcpp_refstring(const char* msg) {
std::size_t len = strlen(msg);
_Rep_base* rep =
static_cast<_Rep_base*>(::operator new(sizeof(*rep) + len + 1));
rep->len = len;
rep->cap = len;
rep->count = 0;
char* data = data_from_rep(rep);
std::memcpy(data, msg, len + 1);
__imp_ = data;
}
inline __libcpp_refstring::__libcpp_refstring(
const __libcpp_refstring& s) _NOEXCEPT : __imp_(s.__imp_) {
if (__uses_refcount())
__libcpp_atomic_add(&rep_from_data(__imp_)->count, 1);
}
inline __libcpp_refstring&
__libcpp_refstring::operator=(__libcpp_refstring const& s) _NOEXCEPT {
bool adjust_old_count = __uses_refcount();
struct _Rep_base* old_rep = rep_from_data(__imp_);
__imp_ = s.__imp_;
if (__uses_refcount())
__libcpp_atomic_add(&rep_from_data(__imp_)->count, 1);
if (adjust_old_count) {
if (__libcpp_atomic_add(&old_rep->count, count_t(-1)) < 0) {
::operator delete(old_rep);
}
}
return *this;
}
inline __libcpp_refstring::~__libcpp_refstring() {
if (__uses_refcount()) {
_Rep_base* rep = rep_from_data(__imp_);
if (__libcpp_atomic_add(&rep->count, count_t(-1)) < 0) {
::operator delete(rep);
}
}
}
inline bool __libcpp_refstring::__uses_refcount() const {
#ifdef __APPLE__
return __imp_ != get_gcc_empty_string_storage();
#else
return true;
#endif
}
_LIBCPP_END_NAMESPACE_STD
#endif //_LIBCPP_REFSTRING_H

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// -*- C++ -*-
//===--------------------------- sstream ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_SSTREAM
#define _LIBCPP_SSTREAM
/*
sstream synopsis
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringbuf
: public basic_streambuf<charT, traits>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// 27.8.1.1 Constructors:
explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out);
explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& str,
ios_base::openmode which = ios_base::in | ios_base::out);
basic_stringbuf(basic_stringbuf&& rhs);
// 27.8.1.2 Assign and swap:
basic_stringbuf& operator=(basic_stringbuf&& rhs);
void swap(basic_stringbuf& rhs);
// 27.8.1.3 Get and set:
basic_string<char_type, traits_type, allocator_type> str() const;
void str(const basic_string<char_type, traits_type, allocator_type>& s);
protected:
// 27.8.1.4 Overridden virtual functions:
virtual int_type underflow();
virtual int_type pbackfail(int_type c = traits_type::eof());
virtual int_type overflow (int_type c = traits_type::eof());
virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize);
virtual pos_type seekoff(off_type off, ios_base::seekdir way,
ios_base::openmode which = ios_base::in | ios_base::out);
virtual pos_type seekpos(pos_type sp,
ios_base::openmode which = ios_base::in | ios_base::out);
};
template <class charT, class traits, class Allocator>
void swap(basic_stringbuf<charT, traits, Allocator>& x,
basic_stringbuf<charT, traits, Allocator>& y);
typedef basic_stringbuf<char> stringbuf;
typedef basic_stringbuf<wchar_t> wstringbuf;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_istringstream
: public basic_istream<charT, traits>
{
public:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// 27.8.2.1 Constructors:
explicit basic_istringstream(ios_base::openmode which = ios_base::in);
explicit basic_istringstream(const basic_string<char_type, traits_type,allocator_type>& str,
ios_base::openmode which = ios_base::in);
basic_istringstream(basic_istringstream&& rhs);
// 27.8.2.2 Assign and swap:
basic_istringstream& operator=(basic_istringstream&& rhs);
void swap(basic_istringstream& rhs);
// 27.8.2.3 Members:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const;
void str(const basic_string<char_type, traits_type, allocator_type>& s);
};
template <class charT, class traits, class Allocator>
void swap(basic_istringstream<charT, traits, Allocator>& x,
basic_istringstream<charT, traits, Allocator>& y);
typedef basic_istringstream<char> istringstream;
typedef basic_istringstream<wchar_t> wistringstream;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_ostringstream
: public basic_ostream<charT, traits>
{
public:
// types:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// 27.8.3.1 Constructors/destructor:
explicit basic_ostringstream(ios_base::openmode which = ios_base::out);
explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& str,
ios_base::openmode which = ios_base::out);
basic_ostringstream(basic_ostringstream&& rhs);
// 27.8.3.2 Assign/swap:
basic_ostringstream& operator=(basic_ostringstream&& rhs);
void swap(basic_ostringstream& rhs);
// 27.8.3.3 Members:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const;
void str(const basic_string<char_type, traits_type, allocator_type>& s);
};
template <class charT, class traits, class Allocator>
void swap(basic_ostringstream<charT, traits, Allocator>& x,
basic_ostringstream<charT, traits, Allocator>& y);
typedef basic_ostringstream<char> ostringstream;
typedef basic_ostringstream<wchar_t> wostringstream;
template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
class basic_stringstream
: public basic_iostream<charT, traits>
{
public:
// types:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef Allocator allocator_type;
// constructors/destructor
explicit basic_stringstream(ios_base::openmode which = ios_base::out|ios_base::in);
explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& str,
ios_base::openmode which = ios_base::out|ios_base::in);
basic_stringstream(basic_stringstream&& rhs);
// 27.8.5.1 Assign/swap:
basic_stringstream& operator=(basic_stringstream&& rhs);
void swap(basic_stringstream& rhs);
// Members:
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
basic_string<char_type, traits_type, allocator_type> str() const;
void str(const basic_string<char_type, traits_type, allocator_type>& str);
};
template <class charT, class traits, class Allocator>
void swap(basic_stringstream<charT, traits, Allocator>& x,
basic_stringstream<charT, traits, Allocator>& y);
typedef basic_stringstream<char> stringstream;
typedef basic_stringstream<wchar_t> wstringstream;
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/ostream"
#include "third_party/libcxx/istream"
#include "third_party/libcxx/string"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
// basic_stringbuf
template <class _CharT, class _Traits, class _Allocator>
class _LIBCPP_TEMPLATE_VIS basic_stringbuf
: public basic_streambuf<_CharT, _Traits>
{
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
string_type __str_;
mutable char_type* __hm_;
ios_base::openmode __mode_;
public:
// 27.8.1.1 Constructors:
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_stringbuf(ios_base::openmode __wch = ios_base::in | ios_base::out);
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_stringbuf(const string_type& __s,
ios_base::openmode __wch = ios_base::in | ios_base::out);
#ifndef _LIBCPP_CXX03_LANG
basic_stringbuf(basic_stringbuf&& __rhs);
// 27.8.1.2 Assign and swap:
basic_stringbuf& operator=(basic_stringbuf&& __rhs);
#endif
void swap(basic_stringbuf& __rhs);
// 27.8.1.3 Get and set:
string_type str() const;
void str(const string_type& __s);
protected:
// 27.8.1.4 Overridden virtual functions:
virtual int_type underflow();
virtual int_type pbackfail(int_type __c = traits_type::eof());
virtual int_type overflow (int_type __c = traits_type::eof());
virtual pos_type seekoff(off_type __off, ios_base::seekdir __way,
ios_base::openmode __wch = ios_base::in | ios_base::out);
inline _LIBCPP_INLINE_VISIBILITY
virtual pos_type seekpos(pos_type __sp,
ios_base::openmode __wch = ios_base::in | ios_base::out);
};
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(ios_base::openmode __wch)
: __hm_(0),
__mode_(__wch)
{
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(const string_type& __s,
ios_base::openmode __wch)
: __str_(__s.get_allocator()),
__hm_(0),
__mode_(__wch)
{
str(__s);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(basic_stringbuf&& __rhs)
: __mode_(__rhs.__mode_)
{
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __binp = -1;
ptrdiff_t __ninp = -1;
ptrdiff_t __einp = -1;
if (__rhs.eback() != nullptr)
{
__binp = __rhs.eback() - __p;
__ninp = __rhs.gptr() - __p;
__einp = __rhs.egptr() - __p;
}
ptrdiff_t __bout = -1;
ptrdiff_t __nout = -1;
ptrdiff_t __eout = -1;
if (__rhs.pbase() != nullptr)
{
__bout = __rhs.pbase() - __p;
__nout = __rhs.pptr() - __p;
__eout = __rhs.epptr() - __p;
}
ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__str_ = _VSTD::move(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__binp != -1)
this->setg(__p + __binp, __p + __ninp, __p + __einp);
if (__bout != -1)
{
this->setp(__p + __bout, __p + __eout);
this->__pbump(__nout);
}
__hm_ = __hm == -1 ? nullptr : __p + __hm;
__p = const_cast<char_type*>(__rhs.__str_.data());
__rhs.setg(__p, __p, __p);
__rhs.setp(__p, __p);
__rhs.__hm_ = __p;
this->pubimbue(__rhs.getloc());
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>&
basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs)
{
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __binp = -1;
ptrdiff_t __ninp = -1;
ptrdiff_t __einp = -1;
if (__rhs.eback() != nullptr)
{
__binp = __rhs.eback() - __p;
__ninp = __rhs.gptr() - __p;
__einp = __rhs.egptr() - __p;
}
ptrdiff_t __bout = -1;
ptrdiff_t __nout = -1;
ptrdiff_t __eout = -1;
if (__rhs.pbase() != nullptr)
{
__bout = __rhs.pbase() - __p;
__nout = __rhs.pptr() - __p;
__eout = __rhs.epptr() - __p;
}
ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__str_ = _VSTD::move(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__binp != -1)
this->setg(__p + __binp, __p + __ninp, __p + __einp);
else
this->setg(nullptr, nullptr, nullptr);
if (__bout != -1)
{
this->setp(__p + __bout, __p + __eout);
this->__pbump(__nout);
}
else
this->setp(nullptr, nullptr);
__hm_ = __hm == -1 ? nullptr : __p + __hm;
__mode_ = __rhs.__mode_;
__p = const_cast<char_type*>(__rhs.__str_.data());
__rhs.setg(__p, __p, __p);
__rhs.setp(__p, __p);
__rhs.__hm_ = __p;
this->pubimbue(__rhs.getloc());
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
void
basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs)
{
char_type* __p = const_cast<char_type*>(__rhs.__str_.data());
ptrdiff_t __rbinp = -1;
ptrdiff_t __rninp = -1;
ptrdiff_t __reinp = -1;
if (__rhs.eback() != nullptr)
{
__rbinp = __rhs.eback() - __p;
__rninp = __rhs.gptr() - __p;
__reinp = __rhs.egptr() - __p;
}
ptrdiff_t __rbout = -1;
ptrdiff_t __rnout = -1;
ptrdiff_t __reout = -1;
if (__rhs.pbase() != nullptr)
{
__rbout = __rhs.pbase() - __p;
__rnout = __rhs.pptr() - __p;
__reout = __rhs.epptr() - __p;
}
ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p;
__p = const_cast<char_type*>(__str_.data());
ptrdiff_t __lbinp = -1;
ptrdiff_t __lninp = -1;
ptrdiff_t __leinp = -1;
if (this->eback() != nullptr)
{
__lbinp = this->eback() - __p;
__lninp = this->gptr() - __p;
__leinp = this->egptr() - __p;
}
ptrdiff_t __lbout = -1;
ptrdiff_t __lnout = -1;
ptrdiff_t __leout = -1;
if (this->pbase() != nullptr)
{
__lbout = this->pbase() - __p;
__lnout = this->pptr() - __p;
__leout = this->epptr() - __p;
}
ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p;
_VSTD::swap(__mode_, __rhs.__mode_);
__str_.swap(__rhs.__str_);
__p = const_cast<char_type*>(__str_.data());
if (__rbinp != -1)
this->setg(__p + __rbinp, __p + __rninp, __p + __reinp);
else
this->setg(nullptr, nullptr, nullptr);
if (__rbout != -1)
{
this->setp(__p + __rbout, __p + __reout);
this->__pbump(__rnout);
}
else
this->setp(nullptr, nullptr);
__hm_ = __rhm == -1 ? nullptr : __p + __rhm;
__p = const_cast<char_type*>(__rhs.__str_.data());
if (__lbinp != -1)
__rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp);
else
__rhs.setg(nullptr, nullptr, nullptr);
if (__lbout != -1)
{
__rhs.setp(__p + __lbout, __p + __leout);
__rhs.__pbump(__lnout);
}
else
__rhs.setp(nullptr, nullptr);
__rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm;
locale __tl = __rhs.getloc();
__rhs.pubimbue(this->getloc());
this->pubimbue(__tl);
}
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x,
basic_stringbuf<_CharT, _Traits, _Allocator>& __y)
{
__x.swap(__y);
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>::str() const
{
if (__mode_ & ios_base::out)
{
if (__hm_ < this->pptr())
__hm_ = this->pptr();
return string_type(this->pbase(), __hm_, __str_.get_allocator());
}
else if (__mode_ & ios_base::in)
return string_type(this->eback(), this->egptr(), __str_.get_allocator());
return string_type(__str_.get_allocator());
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_stringbuf<_CharT, _Traits, _Allocator>::str(const string_type& __s)
{
__str_ = __s;
__hm_ = 0;
if (__mode_ & ios_base::in)
{
__hm_ = const_cast<char_type*>(__str_.data()) + __str_.size();
this->setg(const_cast<char_type*>(__str_.data()),
const_cast<char_type*>(__str_.data()),
__hm_);
}
if (__mode_ & ios_base::out)
{
typename string_type::size_type __sz = __str_.size();
__hm_ = const_cast<char_type*>(__str_.data()) + __sz;
__str_.resize(__str_.capacity());
this->setp(const_cast<char_type*>(__str_.data()),
const_cast<char_type*>(__str_.data()) + __str_.size());
if (__mode_ & (ios_base::app | ios_base::ate))
{
while (__sz > INT_MAX)
{
this->pbump(INT_MAX);
__sz -= INT_MAX;
}
if (__sz > 0)
this->pbump(__sz);
}
}
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::underflow()
{
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if (__mode_ & ios_base::in)
{
if (this->egptr() < __hm_)
this->setg(this->eback(), this->gptr(), __hm_);
if (this->gptr() < this->egptr())
return traits_type::to_int_type(*this->gptr());
}
return traits_type::eof();
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c)
{
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if (this->eback() < this->gptr())
{
if (traits_type::eq_int_type(__c, traits_type::eof()))
{
this->setg(this->eback(), this->gptr()-1, __hm_);
return traits_type::not_eof(__c);
}
if ((__mode_ & ios_base::out) ||
traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1]))
{
this->setg(this->eback(), this->gptr()-1, __hm_);
*this->gptr() = traits_type::to_char_type(__c);
return __c;
}
}
return traits_type::eof();
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type
basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c)
{
if (!traits_type::eq_int_type(__c, traits_type::eof()))
{
ptrdiff_t __ninp = this->gptr() - this->eback();
if (this->pptr() == this->epptr())
{
if (!(__mode_ & ios_base::out))
return traits_type::eof();
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
ptrdiff_t __nout = this->pptr() - this->pbase();
ptrdiff_t __hm = __hm_ - this->pbase();
__str_.push_back(char_type());
__str_.resize(__str_.capacity());
char_type* __p = const_cast<char_type*>(__str_.data());
this->setp(__p, __p + __str_.size());
this->__pbump(__nout);
__hm_ = this->pbase() + __hm;
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
return traits_type::eof();
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
__hm_ = _VSTD::max(this->pptr() + 1, __hm_);
if (__mode_ & ios_base::in)
{
char_type* __p = const_cast<char_type*>(__str_.data());
this->setg(__p, __p + __ninp, __hm_);
}
return this->sputc(traits_type::to_char_type(__c));
}
return traits_type::not_eof(__c);
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type
basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off,
ios_base::seekdir __way,
ios_base::openmode __wch)
{
if (__hm_ < this->pptr())
__hm_ = this->pptr();
if ((__wch & (ios_base::in | ios_base::out)) == 0)
return pos_type(-1);
if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out)
&& __way == ios_base::cur)
return pos_type(-1);
const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data();
off_type __noff;
switch (__way)
{
case ios_base::beg:
__noff = 0;
break;
case ios_base::cur:
if (__wch & ios_base::in)
__noff = this->gptr() - this->eback();
else
__noff = this->pptr() - this->pbase();
break;
case ios_base::end:
__noff = __hm;
break;
default:
return pos_type(-1);
}
__noff += __off;
if (__noff < 0 || __hm < __noff)
return pos_type(-1);
if (__noff != 0)
{
if ((__wch & ios_base::in) && this->gptr() == 0)
return pos_type(-1);
if ((__wch & ios_base::out) && this->pptr() == 0)
return pos_type(-1);
}
if (__wch & ios_base::in)
this->setg(this->eback(), this->eback() + __noff, __hm_);
if (__wch & ios_base::out)
{
this->setp(this->pbase(), this->epptr());
this->pbump(__noff);
}
return pos_type(__noff);
}
template <class _CharT, class _Traits, class _Allocator>
typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type
basic_stringbuf<_CharT, _Traits, _Allocator>::seekpos(pos_type __sp,
ios_base::openmode __wch)
{
return seekoff(__sp, ios_base::beg, __wch);
}
// basic_istringstream
template <class _CharT, class _Traits, class _Allocator>
class _LIBCPP_TEMPLATE_VIS basic_istringstream
: public basic_istream<_CharT, _Traits>
{
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
public:
// 27.8.2.1 Constructors:
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_istringstream(ios_base::openmode __wch = ios_base::in);
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_istringstream(const string_type& __s,
ios_base::openmode __wch = ios_base::in);
#ifndef _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
basic_istringstream(basic_istringstream&& __rhs);
// 27.8.2.2 Assign and swap:
basic_istringstream& operator=(basic_istringstream&& __rhs);
#endif // _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
void swap(basic_istringstream& __rhs);
// 27.8.2.3 Members:
inline _LIBCPP_INLINE_VISIBILITY
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
inline _LIBCPP_INLINE_VISIBILITY
string_type str() const;
inline _LIBCPP_INLINE_VISIBILITY
void str(const string_type& __s);
};
template <class _CharT, class _Traits, class _Allocator>
basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(ios_base::openmode __wch)
: basic_istream<_CharT, _Traits>(&__sb_),
__sb_(__wch | ios_base::in)
{
}
template <class _CharT, class _Traits, class _Allocator>
basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(const string_type& __s,
ios_base::openmode __wch)
: basic_istream<_CharT, _Traits>(&__sb_),
__sb_(__s, __wch | ios_base::in)
{
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(basic_istringstream&& __rhs)
: basic_istream<_CharT, _Traits>(_VSTD::move(__rhs)),
__sb_(_VSTD::move(__rhs.__sb_))
{
basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_istringstream<_CharT, _Traits, _Allocator>&
basic_istringstream<_CharT, _Traits, _Allocator>::operator=(basic_istringstream&& __rhs)
{
basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
__sb_ = _VSTD::move(__rhs.__sb_);
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
void basic_istringstream<_CharT, _Traits, _Allocator>::swap(basic_istringstream& __rhs)
{
basic_istream<char_type, traits_type>::swap(__rhs);
__sb_.swap(__rhs.__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x,
basic_istringstream<_CharT, _Traits, _Allocator>& __y)
{
__x.swap(__y);
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>*
basic_istringstream<_CharT, _Traits, _Allocator>::rdbuf() const
{
return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
basic_istringstream<_CharT, _Traits, _Allocator>::str() const
{
return __sb_.str();
}
template <class _CharT, class _Traits, class _Allocator>
void basic_istringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
{
__sb_.str(__s);
}
// basic_ostringstream
template <class _CharT, class _Traits, class _Allocator>
class _LIBCPP_TEMPLATE_VIS basic_ostringstream
: public basic_ostream<_CharT, _Traits>
{
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
public:
// 27.8.2.1 Constructors:
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_ostringstream(ios_base::openmode __wch = ios_base::out);
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_ostringstream(const string_type& __s,
ios_base::openmode __wch = ios_base::out);
#ifndef _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
basic_ostringstream(basic_ostringstream&& __rhs);
// 27.8.2.2 Assign and swap:
basic_ostringstream& operator=(basic_ostringstream&& __rhs);
#endif // _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
void swap(basic_ostringstream& __rhs);
// 27.8.2.3 Members:
inline _LIBCPP_INLINE_VISIBILITY
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
inline _LIBCPP_INLINE_VISIBILITY
string_type str() const;
inline _LIBCPP_INLINE_VISIBILITY
void str(const string_type& __s);
};
template <class _CharT, class _Traits, class _Allocator>
basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(ios_base::openmode __wch)
: basic_ostream<_CharT, _Traits>(&__sb_),
__sb_(__wch | ios_base::out)
{
}
template <class _CharT, class _Traits, class _Allocator>
basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(const string_type& __s,
ios_base::openmode __wch)
: basic_ostream<_CharT, _Traits>(&__sb_),
__sb_(__s, __wch | ios_base::out)
{
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(basic_ostringstream&& __rhs)
: basic_ostream<_CharT, _Traits>(_VSTD::move(__rhs)),
__sb_(_VSTD::move(__rhs.__sb_))
{
basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_ostringstream<_CharT, _Traits, _Allocator>&
basic_ostringstream<_CharT, _Traits, _Allocator>::operator=(basic_ostringstream&& __rhs)
{
basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
__sb_ = _VSTD::move(__rhs.__sb_);
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
void
basic_ostringstream<_CharT, _Traits, _Allocator>::swap(basic_ostringstream& __rhs)
{
basic_ostream<char_type, traits_type>::swap(__rhs);
__sb_.swap(__rhs.__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x,
basic_ostringstream<_CharT, _Traits, _Allocator>& __y)
{
__x.swap(__y);
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>*
basic_ostringstream<_CharT, _Traits, _Allocator>::rdbuf() const
{
return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
basic_ostringstream<_CharT, _Traits, _Allocator>::str() const
{
return __sb_.str();
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_ostringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
{
__sb_.str(__s);
}
// basic_stringstream
template <class _CharT, class _Traits, class _Allocator>
class _LIBCPP_TEMPLATE_VIS basic_stringstream
: public basic_iostream<_CharT, _Traits>
{
public:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
typedef _Allocator allocator_type;
typedef basic_string<char_type, traits_type, allocator_type> string_type;
private:
basic_stringbuf<char_type, traits_type, allocator_type> __sb_;
public:
// 27.8.2.1 Constructors:
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_stringstream(ios_base::openmode __wch = ios_base::in | ios_base::out);
inline _LIBCPP_INLINE_VISIBILITY
explicit basic_stringstream(const string_type& __s,
ios_base::openmode __wch = ios_base::in | ios_base::out);
#ifndef _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
basic_stringstream(basic_stringstream&& __rhs);
// 27.8.2.2 Assign and swap:
basic_stringstream& operator=(basic_stringstream&& __rhs);
#endif // _LIBCPP_CXX03_LANG
inline _LIBCPP_INLINE_VISIBILITY
void swap(basic_stringstream& __rhs);
// 27.8.2.3 Members:
inline _LIBCPP_INLINE_VISIBILITY
basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const;
inline _LIBCPP_INLINE_VISIBILITY
string_type str() const;
inline _LIBCPP_INLINE_VISIBILITY
void str(const string_type& __s);
};
template <class _CharT, class _Traits, class _Allocator>
basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(ios_base::openmode __wch)
: basic_iostream<_CharT, _Traits>(&__sb_),
__sb_(__wch)
{
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(const string_type& __s,
ios_base::openmode __wch)
: basic_iostream<_CharT, _Traits>(&__sb_),
__sb_(__s, __wch)
{
}
#ifndef _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(basic_stringstream&& __rhs)
: basic_iostream<_CharT, _Traits>(_VSTD::move(__rhs)),
__sb_(_VSTD::move(__rhs.__sb_))
{
basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringstream<_CharT, _Traits, _Allocator>&
basic_stringstream<_CharT, _Traits, _Allocator>::operator=(basic_stringstream&& __rhs)
{
basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs));
__sb_ = _VSTD::move(__rhs.__sb_);
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _CharT, class _Traits, class _Allocator>
void
basic_stringstream<_CharT, _Traits, _Allocator>::swap(basic_stringstream& __rhs)
{
basic_iostream<char_type, traits_type>::swap(__rhs);
__sb_.swap(__rhs.__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x,
basic_stringstream<_CharT, _Traits, _Allocator>& __y)
{
__x.swap(__y);
}
template <class _CharT, class _Traits, class _Allocator>
basic_stringbuf<_CharT, _Traits, _Allocator>*
basic_stringstream<_CharT, _Traits, _Allocator>::rdbuf() const
{
return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_);
}
template <class _CharT, class _Traits, class _Allocator>
basic_string<_CharT, _Traits, _Allocator>
basic_stringstream<_CharT, _Traits, _Allocator>::str() const
{
return __sb_.str();
}
template <class _CharT, class _Traits, class _Allocator>
void
basic_stringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s)
{
__sb_.str(__s);
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_SSTREAM

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// -*- C++ -*-
//===--------------------------- stdexcept --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STDEXCEPT
#define _LIBCPP_STDEXCEPT
/*
stdexcept synopsis
namespace std
{
class logic_error;
class domain_error;
class invalid_argument;
class length_error;
class out_of_range;
class runtime_error;
class range_error;
class overflow_error;
class underflow_error;
for each class xxx_error:
class xxx_error : public exception // at least indirectly
{
public:
explicit xxx_error(const string& what_arg);
explicit xxx_error(const char* what_arg);
virtual const char* what() const noexcept // returns what_arg
};
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/exception"
#include "third_party/libcxx/iosfwd" // for string forward decl
#ifdef _LIBCPP_NO_EXCEPTIONS
#include "third_party/libcxx/cstdlib"
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_ABI_VCRUNTIME
class _LIBCPP_HIDDEN __libcpp_refstring
{
const char* __imp_;
bool __uses_refcount() const;
public:
explicit __libcpp_refstring(const char* __msg);
__libcpp_refstring(const __libcpp_refstring& __s) _NOEXCEPT;
__libcpp_refstring& operator=(const __libcpp_refstring& __s) _NOEXCEPT;
~__libcpp_refstring();
const char* c_str() const _NOEXCEPT {return __imp_;}
};
#endif // !_LIBCPP_ABI_VCRUNTIME
_LIBCPP_END_NAMESPACE_STD
namespace std // purposefully not using versioning namespace
{
class _LIBCPP_EXCEPTION_ABI logic_error
: public exception
{
#ifndef _LIBCPP_ABI_VCRUNTIME
private:
_VSTD::__libcpp_refstring __imp_;
public:
explicit logic_error(const string&);
explicit logic_error(const char*);
logic_error(const logic_error&) _NOEXCEPT;
logic_error& operator=(const logic_error&) _NOEXCEPT;
virtual ~logic_error() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
#else
public:
explicit logic_error(const _VSTD::string&); // Symbol uses versioned std::string
_LIBCPP_INLINE_VISIBILITY explicit logic_error(const char* __s) : exception(__s) {}
#endif
};
class _LIBCPP_EXCEPTION_ABI runtime_error
: public exception
{
#ifndef _LIBCPP_ABI_VCRUNTIME
private:
_VSTD::__libcpp_refstring __imp_;
public:
explicit runtime_error(const string&);
explicit runtime_error(const char*);
runtime_error(const runtime_error&) _NOEXCEPT;
runtime_error& operator=(const runtime_error&) _NOEXCEPT;
virtual ~runtime_error() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
#else
public:
explicit runtime_error(const _VSTD::string&); // Symbol uses versioned std::string
_LIBCPP_INLINE_VISIBILITY explicit runtime_error(const char* __s) : exception(__s) {}
#endif // _LIBCPP_ABI_VCRUNTIME
};
class _LIBCPP_EXCEPTION_ABI domain_error
: public logic_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit domain_error(const string& __s) : logic_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit domain_error(const char* __s) : logic_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~domain_error() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI invalid_argument
: public logic_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit invalid_argument(const string& __s) : logic_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit invalid_argument(const char* __s) : logic_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~invalid_argument() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI length_error
: public logic_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit length_error(const string& __s) : logic_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit length_error(const char* __s) : logic_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~length_error() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI out_of_range
: public logic_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit out_of_range(const string& __s) : logic_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit out_of_range(const char* __s) : logic_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~out_of_range() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI range_error
: public runtime_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit range_error(const string& __s) : runtime_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit range_error(const char* __s) : runtime_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~range_error() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI overflow_error
: public runtime_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit overflow_error(const string& __s) : runtime_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit overflow_error(const char* __s) : runtime_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~overflow_error() _NOEXCEPT;
#endif
};
class _LIBCPP_EXCEPTION_ABI underflow_error
: public runtime_error
{
public:
_LIBCPP_INLINE_VISIBILITY explicit underflow_error(const string& __s) : runtime_error(__s) {}
_LIBCPP_INLINE_VISIBILITY explicit underflow_error(const char* __s) : runtime_error(__s) {}
#ifndef _LIBCPP_ABI_VCRUNTIME
virtual ~underflow_error() _NOEXCEPT;
#endif
};
} // std
_LIBCPP_BEGIN_NAMESPACE_STD
// in the dylib
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_runtime_error(const char*);
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_logic_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw logic_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_domain_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw domain_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_invalid_argument(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw invalid_argument(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_length_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw length_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_out_of_range(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw out_of_range(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_range_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw range_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_overflow_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw overflow_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_underflow_error(const char*__msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw underflow_error(__msg);
#else
((void)__msg);
_VSTD::abort();
#endif
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STDEXCEPT

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//===------------------------ stdexcept.cpp -------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/new"
#include "third_party/libcxx/string"
#include "third_party/libcxx/system_error"
#include "third_party/libcxx/stdexcept_default.hh"

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//===--------------------- stdexcept_default.ipp --------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/refstring.hh"
#include "third_party/libcxx/string"
/* For _LIBCPPABI_VERSION */
#if !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) && \
(defined(LIBCXX_BUILDING_LIBCXXABI) || defined(LIBCXXRT))
#include "third_party/libcxx/cxxabi.h"
#endif
static_assert(sizeof(std::__libcpp_refstring) == sizeof(const char*), "");
namespace std // purposefully not using versioning namespace
{
logic_error::logic_error(const string& msg) : __imp_(msg.c_str()) {}
logic_error::logic_error(const char* msg) : __imp_(msg) {}
logic_error::logic_error(const logic_error& le) _NOEXCEPT : __imp_(le.__imp_) {}
logic_error& logic_error::operator=(const logic_error& le) _NOEXCEPT {
__imp_ = le.__imp_;
return *this;
}
runtime_error::runtime_error(const string& msg) : __imp_(msg.c_str()) {}
runtime_error::runtime_error(const char* msg) : __imp_(msg) {}
runtime_error::runtime_error(const runtime_error& re) _NOEXCEPT
: __imp_(re.__imp_) {}
runtime_error& runtime_error::operator=(const runtime_error& re) _NOEXCEPT {
__imp_ = re.__imp_;
return *this;
}
#if !defined(_LIBCPPABI_VERSION) && !defined(LIBSTDCXX)
const char* logic_error::what() const _NOEXCEPT { return __imp_.c_str(); }
const char* runtime_error::what() const _NOEXCEPT { return __imp_.c_str(); }
logic_error::~logic_error() _NOEXCEPT {}
domain_error::~domain_error() _NOEXCEPT {}
invalid_argument::~invalid_argument() _NOEXCEPT {}
length_error::~length_error() _NOEXCEPT {}
out_of_range::~out_of_range() _NOEXCEPT {}
runtime_error::~runtime_error() _NOEXCEPT {}
range_error::~range_error() _NOEXCEPT {}
overflow_error::~overflow_error() _NOEXCEPT {}
underflow_error::~underflow_error() _NOEXCEPT {}
#endif
} // namespace std

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// -*- C++ -*-
//===---------------------------- stdio.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#if defined(__need_FILE) || defined(__need___FILE)
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/stdio.h"
#elif !defined(_LIBCPP_STDIO_H)
#define _LIBCPP_STDIO_H
/*
stdio.h synopsis
Macros:
BUFSIZ
EOF
FILENAME_MAX
FOPEN_MAX
L_tmpnam
NULL
SEEK_CUR
SEEK_END
SEEK_SET
TMP_MAX
_IOFBF
_IOLBF
_IONBF
stderr
stdin
stdout
Types:
FILE
fpos_t
size_t
int remove(const char* filename);
int rename(const char* old, const char* new);
FILE* tmpfile(void);
char* tmpnam(char* s);
int fclose(FILE* stream);
int fflush(FILE* stream);
FILE* fopen(const char* restrict filename, const char* restrict mode);
FILE* freopen(const char* restrict filename, const char * restrict mode,
FILE * restrict stream);
void setbuf(FILE* restrict stream, char* restrict buf);
int setvbuf(FILE* restrict stream, char* restrict buf, int mode, size_t size);
int fprintf(FILE* restrict stream, const char* restrict format, ...);
int fscanf(FILE* restrict stream, const char * restrict format, ...);
int printf(const char* restrict format, ...);
int scanf(const char* restrict format, ...);
int snprintf(char* restrict s, size_t n, const char* restrict format, ...); // C99
int sprintf(char* restrict s, const char* restrict format, ...);
int sscanf(const char* restrict s, const char* restrict format, ...);
int vfprintf(FILE* restrict stream, const char* restrict format, va_list arg);
int vfscanf(FILE* restrict stream, const char* restrict format, va_list arg); // C99
int vprintf(const char* restrict format, va_list arg);
int vscanf(const char* restrict format, va_list arg); // C99
int vsnprintf(char* restrict s, size_t n, const char* restrict format, // C99
va_list arg);
int vsprintf(char* restrict s, const char* restrict format, va_list arg);
int vsscanf(const char* restrict s, const char* restrict format, va_list arg); // C99
int fgetc(FILE* stream);
char* fgets(char* restrict s, int n, FILE* restrict stream);
int fputc(int c, FILE* stream);
int fputs(const char* restrict s, FILE* restrict stream);
int getc(FILE* stream);
int getchar(void);
char* gets(char* s); // removed in C++14
int putc(int c, FILE* stream);
int putchar(int c);
int puts(const char* s);
int ungetc(int c, FILE* stream);
size_t fread(void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
size_t fwrite(const void* restrict ptr, size_t size, size_t nmemb,
FILE* restrict stream);
int fgetpos(FILE* restrict stream, fpos_t* restrict pos);
int fseek(FILE* stream, long offset, int whence);
int fsetpos(FILE*stream, const fpos_t* pos);
long ftell(FILE* stream);
void rewind(FILE* stream);
void clearerr(FILE* stream);
int feof(FILE* stream);
int ferror(FILE* stream);
void perror(const char* s);
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/stdio.h"
#ifdef __cplusplus
#undef getc
#undef putc
#undef clearerr
#undef feof
#undef ferror
#endif
#endif // _LIBCPP_STDIO_H

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// -*- C++ -*-
//===--------------------------- stdlib.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#if defined(__need_malloc_and_calloc) || defined(_LIBCPP_STDLIB_INCLUDE_NEXT)
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#if defined(_LIBCPP_STDLIB_INCLUDE_NEXT)
#undef _LIBCPP_STDLIB_INCLUDE_NEXT
#endif
#include "libc/isystem/stdlib.h"
#elif !defined(_LIBCPP_STDLIB_H)
#define _LIBCPP_STDLIB_H
/*
stdlib.h synopsis
Macros:
EXIT_FAILURE
EXIT_SUCCESS
MB_CUR_MAX
NULL
RAND_MAX
Types:
size_t
div_t
ldiv_t
lldiv_t // C99
double atof (const char* nptr);
int atoi (const char* nptr);
long atol (const char* nptr);
long long atoll(const char* nptr); // C99
double strtod (const char* restrict nptr, char** restrict endptr);
float strtof (const char* restrict nptr, char** restrict endptr); // C99
long double strtold (const char* restrict nptr, char** restrict endptr); // C99
long strtol (const char* restrict nptr, char** restrict endptr, int base);
long long strtoll (const char* restrict nptr, char** restrict endptr, int base); // C99
unsigned long strtoul (const char* restrict nptr, char** restrict endptr, int base);
unsigned long long strtoull(const char* restrict nptr, char** restrict endptr, int base); // C99
int rand(void);
void srand(unsigned int seed);
void* calloc(size_t nmemb, size_t size);
void free(void* ptr);
void* malloc(size_t size);
void* realloc(void* ptr, size_t size);
void abort(void);
int atexit(void (*func)(void));
void exit(int status);
void _Exit(int status);
char* getenv(const char* name);
int system(const char* string);
void* bsearch(const void* key, const void* base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *));
void qsort(void* base, size_t nmemb, size_t size,
int (*compar)(const void *, const void *));
int abs( int j);
long abs( long j);
long long abs(long long j); // C++0X
long labs( long j);
long long llabs(long long j); // C99
div_t div( int numer, int denom);
ldiv_t div( long numer, long denom);
lldiv_t div(long long numer, long long denom); // C++0X
ldiv_t ldiv( long numer, long denom);
lldiv_t lldiv(long long numer, long long denom); // C99
int mblen(const char* s, size_t n);
int mbtowc(wchar_t* restrict pwc, const char* restrict s, size_t n);
int wctomb(char* s, wchar_t wchar);
size_t mbstowcs(wchar_t* restrict pwcs, const char* restrict s, size_t n);
size_t wcstombs(char* restrict s, const wchar_t* restrict pwcs, size_t n);
int at_quick_exit(void (*func)(void)) // C++11
void quick_exit(int status); // C++11
void *aligned_alloc(size_t alignment, size_t size); // C11
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/stdlib.h"
#ifdef __cplusplus
#include "third_party/libcxx/math.h"
#endif // __cplusplus
#endif // _LIBCPP_STDLIB_H

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// -*- C++ -*-
//===------------------------- streambuf ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STEAMBUF
#define _LIBCPP_STEAMBUF
/*
streambuf synopsis
namespace std
{
template <class charT, class traits = char_traits<charT> >
class basic_streambuf
{
public:
// types:
typedef charT char_type;
typedef traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
virtual ~basic_streambuf();
// 27.6.2.2.1 locales:
locale pubimbue(const locale& loc);
locale getloc() const;
// 27.6.2.2.2 buffer and positioning:
basic_streambuf* pubsetbuf(char_type* s, streamsize n);
pos_type pubseekoff(off_type off, ios_base::seekdir way,
ios_base::openmode which = ios_base::in | ios_base::out);
pos_type pubseekpos(pos_type sp,
ios_base::openmode which = ios_base::in | ios_base::out);
int pubsync();
// Get and put areas:
// 27.6.2.2.3 Get area:
streamsize in_avail();
int_type snextc();
int_type sbumpc();
int_type sgetc();
streamsize sgetn(char_type* s, streamsize n);
// 27.6.2.2.4 Putback:
int_type sputbackc(char_type c);
int_type sungetc();
// 27.6.2.2.5 Put area:
int_type sputc(char_type c);
streamsize sputn(const char_type* s, streamsize n);
protected:
basic_streambuf();
basic_streambuf(const basic_streambuf& rhs);
basic_streambuf& operator=(const basic_streambuf& rhs);
void swap(basic_streambuf& rhs);
// 27.6.2.3.2 Get area:
char_type* eback() const;
char_type* gptr() const;
char_type* egptr() const;
void gbump(int n);
void setg(char_type* gbeg, char_type* gnext, char_type* gend);
// 27.6.2.3.3 Put area:
char_type* pbase() const;
char_type* pptr() const;
char_type* epptr() const;
void pbump(int n);
void setp(char_type* pbeg, char_type* pend);
// 27.6.2.4 virtual functions:
// 27.6.2.4.1 Locales:
virtual void imbue(const locale& loc);
// 27.6.2.4.2 Buffer management and positioning:
virtual basic_streambuf* setbuf(char_type* s, streamsize n);
virtual pos_type seekoff(off_type off, ios_base::seekdir way,
ios_base::openmode which = ios_base::in | ios_base::out);
virtual pos_type seekpos(pos_type sp,
ios_base::openmode which = ios_base::in | ios_base::out);
virtual int sync();
// 27.6.2.4.3 Get area:
virtual streamsize showmanyc();
virtual streamsize xsgetn(char_type* s, streamsize n);
virtual int_type underflow();
virtual int_type uflow();
// 27.6.2.4.4 Putback:
virtual int_type pbackfail(int_type c = traits_type::eof());
// 27.6.2.4.5 Put area:
virtual streamsize xsputn(const char_type* s, streamsize n);
virtual int_type overflow (int_type c = traits_type::eof());
};
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/iosfwd"
#include "third_party/libcxx/ios"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _CharT, class _Traits>
class _LIBCPP_TEMPLATE_VIS basic_streambuf
{
public:
// types:
typedef _CharT char_type;
typedef _Traits traits_type;
typedef typename traits_type::int_type int_type;
typedef typename traits_type::pos_type pos_type;
typedef typename traits_type::off_type off_type;
static_assert((is_same<_CharT, typename traits_type::char_type>::value),
"traits_type::char_type must be the same type as CharT");
virtual ~basic_streambuf();
// 27.6.2.2.1 locales:
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
locale pubimbue(const locale& __loc) {
imbue(__loc);
locale __r = __loc_;
__loc_ = __loc;
return __r;
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
locale getloc() const { return __loc_; }
// 27.6.2.2.2 buffer and positioning:
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
basic_streambuf* pubsetbuf(char_type* __s, streamsize __n)
{ return setbuf(__s, __n); }
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
pos_type pubseekoff(off_type __off, ios_base::seekdir __way,
ios_base::openmode __which = ios_base::in | ios_base::out)
{ return seekoff(__off, __way, __which); }
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
pos_type pubseekpos(pos_type __sp,
ios_base::openmode __which = ios_base::in | ios_base::out)
{ return seekpos(__sp, __which); }
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int pubsync() { return sync(); }
// Get and put areas:
// 27.6.2.2.3 Get area:
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
streamsize in_avail() {
if (__ninp_ < __einp_)
return static_cast<streamsize>(__einp_ - __ninp_);
return showmanyc();
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type snextc() {
if (sbumpc() == traits_type::eof())
return traits_type::eof();
return sgetc();
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type sbumpc() {
if (__ninp_ == __einp_)
return uflow();
return traits_type::to_int_type(*__ninp_++);
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type sgetc() {
if (__ninp_ == __einp_)
return underflow();
return traits_type::to_int_type(*__ninp_);
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
streamsize sgetn(char_type* __s, streamsize __n)
{ return xsgetn(__s, __n); }
// 27.6.2.2.4 Putback:
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type sputbackc(char_type __c) {
if (__binp_ == __ninp_ || !traits_type::eq(__c, __ninp_[-1]))
return pbackfail(traits_type::to_int_type(__c));
return traits_type::to_int_type(*--__ninp_);
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type sungetc() {
if (__binp_ == __ninp_)
return pbackfail();
return traits_type::to_int_type(*--__ninp_);
}
// 27.6.2.2.5 Put area:
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
int_type sputc(char_type __c) {
if (__nout_ == __eout_)
return overflow(traits_type::to_int_type(__c));
*__nout_++ = __c;
return traits_type::to_int_type(__c);
}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
streamsize sputn(const char_type* __s, streamsize __n)
{ return xsputn(__s, __n); }
protected:
basic_streambuf();
basic_streambuf(const basic_streambuf& __rhs);
basic_streambuf& operator=(const basic_streambuf& __rhs);
void swap(basic_streambuf& __rhs);
// 27.6.2.3.2 Get area:
_LIBCPP_INLINE_VISIBILITY char_type* eback() const {return __binp_;}
_LIBCPP_INLINE_VISIBILITY char_type* gptr() const {return __ninp_;}
_LIBCPP_INLINE_VISIBILITY char_type* egptr() const {return __einp_;}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
void gbump(int __n) { __ninp_ += __n; }
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
void setg(char_type* __gbeg, char_type* __gnext, char_type* __gend) {
__binp_ = __gbeg;
__ninp_ = __gnext;
__einp_ = __gend;
}
// 27.6.2.3.3 Put area:
_LIBCPP_INLINE_VISIBILITY char_type* pbase() const {return __bout_;}
_LIBCPP_INLINE_VISIBILITY char_type* pptr() const {return __nout_;}
_LIBCPP_INLINE_VISIBILITY char_type* epptr() const {return __eout_;}
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
void pbump(int __n) { __nout_ += __n; }
_LIBCPP_INLINE_VISIBILITY
void __pbump(streamsize __n) { __nout_ += __n; }
inline _LIBCPP_HIDE_FROM_ABI_AFTER_V1
void setp(char_type* __pbeg, char_type* __pend) {
__bout_ = __nout_ = __pbeg;
__eout_ = __pend;
}
// 27.6.2.4 virtual functions:
// 27.6.2.4.1 Locales:
virtual void imbue(const locale& __loc);
// 27.6.2.4.2 Buffer management and positioning:
virtual basic_streambuf* setbuf(char_type* __s, streamsize __n);
virtual pos_type seekoff(off_type __off, ios_base::seekdir __way,
ios_base::openmode __which = ios_base::in | ios_base::out);
virtual pos_type seekpos(pos_type __sp,
ios_base::openmode __which = ios_base::in | ios_base::out);
virtual int sync();
// 27.6.2.4.3 Get area:
virtual streamsize showmanyc();
virtual streamsize xsgetn(char_type* __s, streamsize __n);
virtual int_type underflow();
virtual int_type uflow();
// 27.6.2.4.4 Putback:
virtual int_type pbackfail(int_type __c = traits_type::eof());
// 27.6.2.4.5 Put area:
virtual streamsize xsputn(const char_type* __s, streamsize __n);
virtual int_type overflow(int_type __c = traits_type::eof());
private:
locale __loc_;
char_type* __binp_;
char_type* __ninp_;
char_type* __einp_;
char_type* __bout_;
char_type* __nout_;
char_type* __eout_;
};
template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::~basic_streambuf()
{
}
template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf()
: __binp_(0),
__ninp_(0),
__einp_(0),
__bout_(0),
__nout_(0),
__eout_(0)
{
}
template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>::basic_streambuf(const basic_streambuf& __sb)
: __loc_(__sb.__loc_),
__binp_(__sb.__binp_),
__ninp_(__sb.__ninp_),
__einp_(__sb.__einp_),
__bout_(__sb.__bout_),
__nout_(__sb.__nout_),
__eout_(__sb.__eout_)
{
}
template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>&
basic_streambuf<_CharT, _Traits>::operator=(const basic_streambuf& __sb)
{
__loc_ = __sb.__loc_;
__binp_ = __sb.__binp_;
__ninp_ = __sb.__ninp_;
__einp_ = __sb.__einp_;
__bout_ = __sb.__bout_;
__nout_ = __sb.__nout_;
__eout_ = __sb.__eout_;
return *this;
}
template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::swap(basic_streambuf& __sb)
{
_VSTD::swap(__loc_, __sb.__loc_);
_VSTD::swap(__binp_, __sb.__binp_);
_VSTD::swap(__ninp_, __sb.__ninp_);
_VSTD::swap(__einp_, __sb.__einp_);
_VSTD::swap(__bout_, __sb.__bout_);
_VSTD::swap(__nout_, __sb.__nout_);
_VSTD::swap(__eout_, __sb.__eout_);
}
template <class _CharT, class _Traits>
void
basic_streambuf<_CharT, _Traits>::imbue(const locale&)
{
}
template <class _CharT, class _Traits>
basic_streambuf<_CharT, _Traits>*
basic_streambuf<_CharT, _Traits>::setbuf(char_type*, streamsize)
{
return this;
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekoff(off_type, ios_base::seekdir,
ios_base::openmode)
{
return pos_type(off_type(-1));
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::pos_type
basic_streambuf<_CharT, _Traits>::seekpos(pos_type, ios_base::openmode)
{
return pos_type(off_type(-1));
}
template <class _CharT, class _Traits>
int
basic_streambuf<_CharT, _Traits>::sync()
{
return 0;
}
template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::showmanyc()
{
return 0;
}
template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsgetn(char_type* __s, streamsize __n)
{
const int_type __eof = traits_type::eof();
int_type __c;
streamsize __i = 0;
while(__i < __n)
{
if (__ninp_ < __einp_)
{
const streamsize __len = _VSTD::min(static_cast<streamsize>(INT_MAX),
_VSTD::min(__einp_ - __ninp_, __n - __i));
traits_type::copy(__s, __ninp_, __len);
__s += __len;
__i += __len;
this->gbump(__len);
}
else if ((__c = uflow()) != __eof)
{
*__s = traits_type::to_char_type(__c);
++__s;
++__i;
}
else
break;
}
return __i;
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::underflow()
{
return traits_type::eof();
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::uflow()
{
if (underflow() == traits_type::eof())
return traits_type::eof();
return traits_type::to_int_type(*__ninp_++);
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::pbackfail(int_type)
{
return traits_type::eof();
}
template <class _CharT, class _Traits>
streamsize
basic_streambuf<_CharT, _Traits>::xsputn(const char_type* __s, streamsize __n)
{
streamsize __i = 0;
int_type __eof = traits_type::eof();
while( __i < __n)
{
if (__nout_ >= __eout_)
{
if (overflow(traits_type::to_int_type(*__s)) == __eof)
break;
++__s;
++__i;
}
else
{
streamsize __chunk_size = _VSTD::min(__eout_ - __nout_, __n - __i);
traits_type::copy(__nout_, __s, __chunk_size);
__nout_ += __chunk_size;
__s += __chunk_size;
__i += __chunk_size;
}
}
return __i;
}
template <class _CharT, class _Traits>
typename basic_streambuf<_CharT, _Traits>::int_type
basic_streambuf<_CharT, _Traits>::overflow(int_type)
{
return traits_type::eof();
}
#ifndef _LIBCPP_DO_NOT_ASSUME_STREAMS_EXPLICIT_INSTANTIATION_IN_DYLIB
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_streambuf<char>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_streambuf<wchar_t>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<char>)
_LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<wchar_t>)
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_STEAMBUF

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// clang-format off
//===------------------------- string.cpp ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/string"
#include "third_party/libcxx/charconv"
#include "third_party/libcxx/cstdlib"
#include "third_party/libcxx/cwchar"
#include "third_party/libcxx/cerrno"
#include "third_party/libcxx/limits"
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/stdio.h"
#include "third_party/libcxx/__debug"
_LIBCPP_BEGIN_NAMESPACE_STD
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS __basic_string_common<true>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_string<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS basic_string<wchar_t>;
template
string
operator+<char, char_traits<char>, allocator<char> >(char const*, string const&);
namespace
{
template<typename T>
inline
void throw_helper( const string& msg )
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw T( msg );
#else
fprintf(stderr, "%s\n", msg.c_str());
_VSTD::abort();
#endif
}
inline
void throw_from_string_out_of_range( const string& func )
{
throw_helper<out_of_range>(func + ": out of range");
}
inline
void throw_from_string_invalid_arg( const string& func )
{
throw_helper<invalid_argument>(func + ": no conversion");
}
// as_integer
template<typename V, typename S, typename F>
inline
V
as_integer_helper(const string& func, const S& str, size_t* idx, int base, F f)
{
typename S::value_type* ptr = nullptr;
const typename S::value_type* const p = str.c_str();
typename remove_reference<decltype(errno)>::type errno_save = errno;
errno = 0;
V r = f(p, &ptr, base);
swap(errno, errno_save);
if (errno_save == ERANGE)
throw_from_string_out_of_range(func);
if (ptr == p)
throw_from_string_invalid_arg(func);
if (idx)
*idx = static_cast<size_t>(ptr - p);
return r;
}
template<typename V, typename S>
inline
V
as_integer(const string& func, const S& s, size_t* idx, int base);
// string
template<>
inline
int
as_integer(const string& func, const string& s, size_t* idx, int base )
{
// Use long as no Standard string to integer exists.
long r = as_integer_helper<long>( func, s, idx, base, strtol );
if (r < numeric_limits<int>::min() || numeric_limits<int>::max() < r)
throw_from_string_out_of_range(func);
return static_cast<int>(r);
}
template<>
inline
long
as_integer(const string& func, const string& s, size_t* idx, int base )
{
return as_integer_helper<long>( func, s, idx, base, strtol );
}
template<>
inline
unsigned long
as_integer( const string& func, const string& s, size_t* idx, int base )
{
return as_integer_helper<unsigned long>( func, s, idx, base, strtoul );
}
template<>
inline
long long
as_integer( const string& func, const string& s, size_t* idx, int base )
{
return as_integer_helper<long long>( func, s, idx, base, strtoll );
}
template<>
inline
unsigned long long
as_integer( const string& func, const string& s, size_t* idx, int base )
{
return as_integer_helper<unsigned long long>( func, s, idx, base, strtoull );
}
// wstring
template<>
inline
int
as_integer( const string& func, const wstring& s, size_t* idx, int base )
{
// Use long as no Stantard string to integer exists.
long r = as_integer_helper<long>( func, s, idx, base, wcstol );
if (r < numeric_limits<int>::min() || numeric_limits<int>::max() < r)
throw_from_string_out_of_range(func);
return static_cast<int>(r);
}
template<>
inline
long
as_integer( const string& func, const wstring& s, size_t* idx, int base )
{
return as_integer_helper<long>( func, s, idx, base, wcstol );
}
template<>
inline
unsigned long
as_integer( const string& func, const wstring& s, size_t* idx, int base )
{
return as_integer_helper<unsigned long>( func, s, idx, base, wcstoul );
}
template<>
inline
long long
as_integer( const string& func, const wstring& s, size_t* idx, int base )
{
return as_integer_helper<long long>( func, s, idx, base, wcstoll );
}
template<>
inline
unsigned long long
as_integer( const string& func, const wstring& s, size_t* idx, int base )
{
return as_integer_helper<unsigned long long>( func, s, idx, base, wcstoull );
}
// as_float
template<typename V, typename S, typename F>
inline
V
as_float_helper(const string& func, const S& str, size_t* idx, F f )
{
typename S::value_type* ptr = nullptr;
const typename S::value_type* const p = str.c_str();
typename remove_reference<decltype(errno)>::type errno_save = errno;
errno = 0;
V r = f(p, &ptr);
swap(errno, errno_save);
if (errno_save == ERANGE)
throw_from_string_out_of_range(func);
if (ptr == p)
throw_from_string_invalid_arg(func);
if (idx)
*idx = static_cast<size_t>(ptr - p);
return r;
}
template<typename V, typename S>
inline
V as_float( const string& func, const S& s, size_t* idx = nullptr );
template<>
inline
float
as_float( const string& func, const string& s, size_t* idx )
{
return as_float_helper<float>( func, s, idx, strtof );
}
template<>
inline
double
as_float(const string& func, const string& s, size_t* idx )
{
return as_float_helper<double>( func, s, idx, strtod );
}
template<>
inline
long double
as_float( const string& func, const string& s, size_t* idx )
{
return as_float_helper<long double>( func, s, idx, strtold );
}
template<>
inline
float
as_float( const string& func, const wstring& s, size_t* idx )
{
return as_float_helper<float>( func, s, idx, wcstof );
}
template<>
inline
double
as_float( const string& func, const wstring& s, size_t* idx )
{
return as_float_helper<double>( func, s, idx, wcstod );
}
template<>
inline
long double
as_float( const string& func, const wstring& s, size_t* idx )
{
return as_float_helper<long double>( func, s, idx, wcstold );
}
} // unnamed namespace
int
stoi(const string& str, size_t* idx, int base)
{
return as_integer<int>( "stoi", str, idx, base );
}
int
stoi(const wstring& str, size_t* idx, int base)
{
return as_integer<int>( "stoi", str, idx, base );
}
long
stol(const string& str, size_t* idx, int base)
{
return as_integer<long>( "stol", str, idx, base );
}
long
stol(const wstring& str, size_t* idx, int base)
{
return as_integer<long>( "stol", str, idx, base );
}
unsigned long
stoul(const string& str, size_t* idx, int base)
{
return as_integer<unsigned long>( "stoul", str, idx, base );
}
unsigned long
stoul(const wstring& str, size_t* idx, int base)
{
return as_integer<unsigned long>( "stoul", str, idx, base );
}
long long
stoll(const string& str, size_t* idx, int base)
{
return as_integer<long long>( "stoll", str, idx, base );
}
long long
stoll(const wstring& str, size_t* idx, int base)
{
return as_integer<long long>( "stoll", str, idx, base );
}
unsigned long long
stoull(const string& str, size_t* idx, int base)
{
return as_integer<unsigned long long>( "stoull", str, idx, base );
}
unsigned long long
stoull(const wstring& str, size_t* idx, int base)
{
return as_integer<unsigned long long>( "stoull", str, idx, base );
}
float
stof(const string& str, size_t* idx)
{
return as_float<float>( "stof", str, idx );
}
float
stof(const wstring& str, size_t* idx)
{
return as_float<float>( "stof", str, idx );
}
double
stod(const string& str, size_t* idx)
{
return as_float<double>( "stod", str, idx );
}
double
stod(const wstring& str, size_t* idx)
{
return as_float<double>( "stod", str, idx );
}
long double
stold(const string& str, size_t* idx)
{
return as_float<long double>( "stold", str, idx );
}
long double
stold(const wstring& str, size_t* idx)
{
return as_float<long double>( "stold", str, idx );
}
// to_string
namespace
{
// as_string
template<typename S, typename P, typename V >
inline
S
as_string(P sprintf_like, S s, const typename S::value_type* fmt, V a)
{
typedef typename S::size_type size_type;
size_type available = s.size();
while (true)
{
int status = sprintf_like(&s[0], available + 1, fmt, a);
if ( status >= 0 )
{
size_type used = static_cast<size_type>(status);
if ( used <= available )
{
s.resize( used );
break;
}
available = used; // Assume this is advice of how much space we need.
}
else
available = available * 2 + 1;
s.resize(available);
}
return s;
}
template <class S>
struct initial_string;
template <>
struct initial_string<string>
{
string
operator()() const
{
string s;
s.resize(s.capacity());
return s;
}
};
template <>
struct initial_string<wstring>
{
wstring
operator()() const
{
wstring s(20, wchar_t());
s.resize(s.capacity());
return s;
}
};
typedef int (*wide_printf)(wchar_t* __restrict, size_t, const wchar_t*__restrict, ...);
inline
wide_printf
get_swprintf()
{
#ifndef _LIBCPP_MSVCRT
return swprintf;
#else
return static_cast<int (__cdecl*)(wchar_t* __restrict, size_t, const wchar_t*__restrict, ...)>(_snwprintf);
#endif
}
template <typename S, typename V>
S i_to_string(const V v)
{
// numeric_limits::digits10 returns value less on 1 than desired for unsigned numbers.
// For example, for 1-byte unsigned value digits10 is 2 (999 can not be represented),
// so we need +1 here.
constexpr size_t bufsize = numeric_limits<V>::digits10 + 2; // +1 for minus, +1 for digits10
char buf[bufsize];
const auto res = to_chars(buf, buf + bufsize, v);
_LIBCPP_ASSERT(res.ec == errc(), "bufsize must be large enough to accomodate the value");
return S(buf, res.ptr);
}
} // unnamed namespace
string to_string (int val) { return i_to_string< string>(val); }
string to_string (long val) { return i_to_string< string>(val); }
string to_string (long long val) { return i_to_string< string>(val); }
string to_string (unsigned val) { return i_to_string< string>(val); }
string to_string (unsigned long val) { return i_to_string< string>(val); }
string to_string (unsigned long long val) { return i_to_string< string>(val); }
wstring to_wstring(int val) { return i_to_string<wstring>(val); }
wstring to_wstring(long val) { return i_to_string<wstring>(val); }
wstring to_wstring(long long val) { return i_to_string<wstring>(val); }
wstring to_wstring(unsigned val) { return i_to_string<wstring>(val); }
wstring to_wstring(unsigned long val) { return i_to_string<wstring>(val); }
wstring to_wstring(unsigned long long val) { return i_to_string<wstring>(val); }
string to_string (float val) { return as_string(snprintf, initial_string< string>()(), "%f", val); }
string to_string (double val) { return as_string(snprintf, initial_string< string>()(), "%f", val); }
string to_string (long double val) { return as_string(snprintf, initial_string< string>()(), "%Lf", val); }
wstring to_wstring(float val) { return as_string(get_swprintf(), initial_string<wstring>()(), L"%f", val); }
wstring to_wstring(double val) { return as_string(get_swprintf(), initial_string<wstring>()(), L"%f", val); }
wstring to_wstring(long double val) { return as_string(get_swprintf(), initial_string<wstring>()(), L"%Lf", val); }
_LIBCPP_END_NAMESPACE_STD

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// -*- C++ -*-
//===--------------------------- string.h ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STRING_H
#define _LIBCPP_STRING_H
/*
string.h synopsis
Macros:
NULL
Types:
size_t
void* memcpy(void* restrict s1, const void* restrict s2, size_t n);
void* memmove(void* s1, const void* s2, size_t n);
char* strcpy (char* restrict s1, const char* restrict s2);
char* strncpy(char* restrict s1, const char* restrict s2, size_t n);
char* strcat (char* restrict s1, const char* restrict s2);
char* strncat(char* restrict s1, const char* restrict s2, size_t n);
int memcmp(const void* s1, const void* s2, size_t n);
int strcmp (const char* s1, const char* s2);
int strncmp(const char* s1, const char* s2, size_t n);
int strcoll(const char* s1, const char* s2);
size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);
const void* memchr(const void* s, int c, size_t n);
void* memchr( void* s, int c, size_t n);
const char* strchr(const char* s, int c);
char* strchr( char* s, int c);
size_t strcspn(const char* s1, const char* s2);
const char* strpbrk(const char* s1, const char* s2);
char* strpbrk( char* s1, const char* s2);
const char* strrchr(const char* s, int c);
char* strrchr( char* s, int c);
size_t strspn(const char* s1, const char* s2);
const char* strstr(const char* s1, const char* s2);
char* strstr( char* s1, const char* s2);
char* strtok(char* restrict s1, const char* restrict s2);
void* memset(void* s, int c, size_t n);
char* strerror(int errnum);
size_t strlen(const char* s);
*/
#include "third_party/libcxx/__config"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include "libc/isystem/string.h"
// MSVCRT, GNU libc and its derivates may already have the correct prototype in
// <string.h>. This macro can be defined by users if their C library provides
// the right signature.
#if defined(__CORRECT_ISO_CPP_STRING_H_PROTO) || defined(_LIBCPP_MSVCRT) || \
defined(__sun__) || defined(_STRING_H_CPLUSPLUS_98_CONFORMANCE_)
#define _LIBCPP_STRING_H_HAS_CONST_OVERLOADS
#endif
#if defined(__cplusplus) && !defined(_LIBCPP_STRING_H_HAS_CONST_OVERLOADS) && \
defined(_LIBCPP_PREFERRED_OVERLOAD)
extern "C++" {
inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strchr(const char* __s,
int __c) {
return (char*)strchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
strchr(const char* __s, int __c) {
return __libcpp_strchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
strchr(char* __s, int __c) {
return __libcpp_strchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strpbrk(const char* __s1,
const char* __s2) {
return (char*)strpbrk(__s1, __s2);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
strpbrk(const char* __s1, const char* __s2) {
return __libcpp_strpbrk(__s1, __s2);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
strpbrk(char* __s1, const char* __s2) {
return __libcpp_strpbrk(__s1, __s2);
}
inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strrchr(const char* __s,
int __c) {
return (char*)strrchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
strrchr(const char* __s, int __c) {
return __libcpp_strrchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
strrchr(char* __s, int __c) {
return __libcpp_strrchr(__s, __c);
}
inline _LIBCPP_INLINE_VISIBILITY void* __libcpp_memchr(const void* __s, int __c,
size_t __n) {
return (void*)memchr(__s, __c, __n);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const void*
memchr(const void* __s, int __c, size_t __n) {
return __libcpp_memchr(__s, __c, __n);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD void*
memchr(void* __s, int __c, size_t __n) {
return __libcpp_memchr(__s, __c, __n);
}
inline _LIBCPP_INLINE_VISIBILITY char* __libcpp_strstr(const char* __s1,
const char* __s2) {
return (char*)strstr(__s1, __s2);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD const char*
strstr(const char* __s1, const char* __s2) {
return __libcpp_strstr(__s1, __s2);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD char*
strstr(char* __s1, const char* __s2) {
return __libcpp_strstr(__s1, __s2);
}
}
#endif
#endif // _LIBCPP_STRING_H

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// -*- C++ -*-
//===------------------------ string_view ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STRING_VIEW
#define _LIBCPP_STRING_VIEW
#pragma GCC diagnostic ignored "-Wliteral-suffix"
/*
string_view synopsis
namespace std {
// 7.2, Class template basic_string_view
template<class charT, class traits = char_traits<charT>>
class basic_string_view;
// 7.9, basic_string_view non-member comparison functions
template<class charT, class traits>
constexpr bool operator==(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator!=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator< (basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator> (basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator<=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
template<class charT, class traits>
constexpr bool operator>=(basic_string_view<charT, traits> x,
basic_string_view<charT, traits> y) noexcept;
// see below, sufficient additional overloads of comparison functions
// 7.10, Inserters and extractors
template<class charT, class traits>
basic_ostream<charT, traits>&
operator<<(basic_ostream<charT, traits>& os,
basic_string_view<charT, traits> str);
// basic_string_view typedef names
typedef basic_string_view<char> string_view;
typedef basic_string_view<char16_t> u16string_view;
typedef basic_string_view<char32_t> u32string_view;
typedef basic_string_view<wchar_t> wstring_view;
template<class charT, class traits = char_traits<charT>>
class basic_string_view {
public:
// types
typedef traits traits_type;
typedef charT value_type;
typedef charT* pointer;
typedef const charT* const_pointer;
typedef charT& reference;
typedef const charT& const_reference;
typedef implementation-defined const_iterator;
typedef const_iterator iterator;
typedef reverse_iterator<const_iterator> const_reverse_iterator;
typedef const_reverse_iterator reverse_iterator;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
static constexpr size_type npos = size_type(-1);
// 7.3, basic_string_view constructors and assignment operators
constexpr basic_string_view() noexcept;
constexpr basic_string_view(const basic_string_view&) noexcept = default;
basic_string_view& operator=(const basic_string_view&) noexcept = default;
template<class Allocator>
constexpr basic_string_view(const charT* str);
constexpr basic_string_view(const charT* str, size_type len);
// 7.4, basic_string_view iterator support
constexpr const_iterator begin() const noexcept;
constexpr const_iterator end() const noexcept;
constexpr const_iterator cbegin() const noexcept;
constexpr const_iterator cend() const noexcept;
const_reverse_iterator rbegin() const noexcept;
const_reverse_iterator rend() const noexcept;
const_reverse_iterator crbegin() const noexcept;
const_reverse_iterator crend() const noexcept;
// 7.5, basic_string_view capacity
constexpr size_type size() const noexcept;
constexpr size_type length() const noexcept;
constexpr size_type max_size() const noexcept;
constexpr bool empty() const noexcept;
// 7.6, basic_string_view element access
constexpr const_reference operator[](size_type pos) const;
constexpr const_reference at(size_type pos) const;
constexpr const_reference front() const;
constexpr const_reference back() const;
constexpr const_pointer data() const noexcept;
// 7.7, basic_string_view modifiers
constexpr void remove_prefix(size_type n);
constexpr void remove_suffix(size_type n);
constexpr void swap(basic_string_view& s) noexcept;
size_type copy(charT* s, size_type n, size_type pos = 0) const;
constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
constexpr int compare(basic_string_view s) const noexcept;
constexpr int compare(size_type pos1, size_type n1, basic_string_view s) const;
constexpr int compare(size_type pos1, size_type n1,
basic_string_view s, size_type pos2, size_type n2) const;
constexpr int compare(const charT* s) const;
constexpr int compare(size_type pos1, size_type n1, const charT* s) const;
constexpr int compare(size_type pos1, size_type n1,
const charT* s, size_type n2) const;
constexpr size_type find(basic_string_view s, size_type pos = 0) const noexcept;
constexpr size_type find(charT c, size_type pos = 0) const noexcept;
constexpr size_type find(const charT* s, size_type pos, size_type n) const;
constexpr size_type find(const charT* s, size_type pos = 0) const;
constexpr size_type rfind(basic_string_view s, size_type pos = npos) const noexcept;
constexpr size_type rfind(charT c, size_type pos = npos) const noexcept;
constexpr size_type rfind(const charT* s, size_type pos, size_type n) const;
constexpr size_type rfind(const charT* s, size_type pos = npos) const;
constexpr size_type find_first_of(basic_string_view s, size_type pos = 0) const noexcept;
constexpr size_type find_first_of(charT c, size_type pos = 0) const noexcept;
constexpr size_type find_first_of(const charT* s, size_type pos, size_type n) const;
constexpr size_type find_first_of(const charT* s, size_type pos = 0) const;
constexpr size_type find_last_of(basic_string_view s, size_type pos = npos) const noexcept;
constexpr size_type find_last_of(charT c, size_type pos = npos) const noexcept;
constexpr size_type find_last_of(const charT* s, size_type pos, size_type n) const;
constexpr size_type find_last_of(const charT* s, size_type pos = npos) const;
constexpr size_type find_first_not_of(basic_string_view s, size_type pos = 0) const noexcept;
constexpr size_type find_first_not_of(charT c, size_type pos = 0) const noexcept;
constexpr size_type find_first_not_of(const charT* s, size_type pos, size_type n) const;
constexpr size_type find_first_not_of(const charT* s, size_type pos = 0) const;
constexpr size_type find_last_not_of(basic_string_view s, size_type pos = npos) const noexcept;
constexpr size_type find_last_not_of(charT c, size_type pos = npos) const noexcept;
constexpr size_type find_last_not_of(const charT* s, size_type pos, size_type n) const;
constexpr size_type find_last_not_of(const charT* s, size_type pos = npos) const;
constexpr bool starts_with(basic_string_view s) const noexcept; // C++2a
constexpr bool starts_with(charT c) const noexcept; // C++2a
constexpr bool starts_with(const charT* s) const; // C++2a
constexpr bool ends_with(basic_string_view s) const noexcept; // C++2a
constexpr bool ends_with(charT c) const noexcept; // C++2a
constexpr bool ends_with(const charT* s) const; // C++2a
private:
const_pointer data_; // exposition only
size_type size_; // exposition only
};
// 7.11, Hash support
template <class T> struct hash;
template <> struct hash<string_view>;
template <> struct hash<u16string_view>;
template <> struct hash<u32string_view>;
template <> struct hash<wstring_view>;
constexpr basic_string_view<char> operator "" sv( const char *str, size_t len ) noexcept;
constexpr basic_string_view<wchar_t> operator "" sv( const wchar_t *str, size_t len ) noexcept;
constexpr basic_string_view<char16_t> operator "" sv( const char16_t *str, size_t len ) noexcept;
constexpr basic_string_view<char32_t> operator "" sv( const char32_t *str, size_t len ) noexcept;
} // namespace std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/__string"
#include "third_party/libcxx/iosfwd"
#include "third_party/libcxx/algorithm"
#include "third_party/libcxx/iterator"
#include "third_party/libcxx/limits"
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/version"
#include "third_party/libcxx/__debug"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include "third_party/libcxx/__undef_macros"
_LIBCPP_BEGIN_NAMESPACE_STD
template<class _CharT, class _Traits = char_traits<_CharT> >
class _LIBCPP_TEMPLATE_VIS basic_string_view {
public:
// types
typedef _Traits traits_type;
typedef _CharT value_type;
typedef _CharT* pointer;
typedef const _CharT* const_pointer;
typedef _CharT& reference;
typedef const _CharT& const_reference;
typedef const_pointer const_iterator; // See [string.view.iterators]
typedef const_iterator iterator;
typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator;
typedef const_reverse_iterator reverse_iterator;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
static _LIBCPP_CONSTEXPR const size_type npos = -1; // size_type(-1);
static_assert((!is_array<value_type>::value), "Character type of basic_string_view must not be an array");
static_assert(( is_standard_layout<value_type>::value), "Character type of basic_string_view must be standard-layout");
static_assert(( is_trivial<value_type>::value), "Character type of basic_string_view must be trivial");
static_assert((is_same<_CharT, typename traits_type::char_type>::value),
"traits_type::char_type must be the same type as CharT");
// [string.view.cons], construct/copy
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view() _NOEXCEPT : __data (nullptr), __size(0) {}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view(const basic_string_view&) _NOEXCEPT = default;
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
basic_string_view& operator=(const basic_string_view&) _NOEXCEPT = default;
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view(const _CharT* __s, size_type __len) _NOEXCEPT
: __data(__s), __size(__len)
{
#if _LIBCPP_STD_VER > 11
_LIBCPP_ASSERT(__len == 0 || __s != nullptr, "string_view::string_view(_CharT *, size_t): received nullptr");
#endif
}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view(const _CharT* __s)
: __data(__s), __size(std::__char_traits_length_checked<_Traits>(__s)) {}
// [string.view.iterators], iterators
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT { return cbegin(); }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT { return cend(); }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_iterator cbegin() const _NOEXCEPT { return __data; }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_iterator cend() const _NOEXCEPT { return __data + __size; }
_LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(cend()); }
_LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY
const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(cbegin()); }
_LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crbegin() const _NOEXCEPT { return const_reverse_iterator(cend()); }
_LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY
const_reverse_iterator crend() const _NOEXCEPT { return const_reverse_iterator(cbegin()); }
// [string.view.capacity], capacity
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
size_type size() const _NOEXCEPT { return __size; }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
size_type length() const _NOEXCEPT { return __size; }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
size_type max_size() const _NOEXCEPT { return numeric_limits<size_type>::max(); }
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
bool empty() const _NOEXCEPT { return __size == 0; }
// [string.view.access], element access
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_reference operator[](size_type __pos) const _NOEXCEPT { return __data[__pos]; }
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_reference at(size_type __pos) const
{
return __pos >= size()
? (__throw_out_of_range("string_view::at"), __data[0])
: __data[__pos];
}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_reference front() const _NOEXCEPT
{
return _LIBCPP_ASSERT(!empty(), "string_view::front(): string is empty"), __data[0];
}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_reference back() const _NOEXCEPT
{
return _LIBCPP_ASSERT(!empty(), "string_view::back(): string is empty"), __data[__size-1];
}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
const_pointer data() const _NOEXCEPT { return __data; }
// [string.view.modifiers], modifiers:
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
void remove_prefix(size_type __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__n <= size(), "remove_prefix() can't remove more than size()");
__data += __n;
__size -= __n;
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
void remove_suffix(size_type __n) _NOEXCEPT
{
_LIBCPP_ASSERT(__n <= size(), "remove_suffix() can't remove more than size()");
__size -= __n;
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
void swap(basic_string_view& __other) _NOEXCEPT
{
const value_type *__p = __data;
__data = __other.__data;
__other.__data = __p;
size_type __sz = __size;
__size = __other.__size;
__other.__size = __sz;
}
_LIBCPP_INLINE_VISIBILITY
size_type copy(_CharT* __s, size_type __n, size_type __pos = 0) const
{
if (__pos > size())
__throw_out_of_range("string_view::copy");
size_type __rlen = _VSTD::min(__n, size() - __pos);
_Traits::copy(__s, data() + __pos, __rlen);
return __rlen;
}
_LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY
basic_string_view substr(size_type __pos = 0, size_type __n = npos) const
{
return __pos > size()
? (__throw_out_of_range("string_view::substr"), basic_string_view())
: basic_string_view(data() + __pos, _VSTD::min(__n, size() - __pos));
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 int compare(basic_string_view __sv) const _NOEXCEPT
{
size_type __rlen = _VSTD::min( size(), __sv.size());
int __retval = _Traits::compare(data(), __sv.data(), __rlen);
if ( __retval == 0 ) // first __rlen chars matched
__retval = size() == __sv.size() ? 0 : ( size() < __sv.size() ? -1 : 1 );
return __retval;
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
int compare(size_type __pos1, size_type __n1, basic_string_view __sv) const
{
return substr(__pos1, __n1).compare(__sv);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
int compare( size_type __pos1, size_type __n1,
basic_string_view __sv, size_type __pos2, size_type __n2) const
{
return substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2));
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
int compare(const _CharT* __s) const _NOEXCEPT
{
return compare(basic_string_view(__s));
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
int compare(size_type __pos1, size_type __n1, const _CharT* __s) const
{
return substr(__pos1, __n1).compare(basic_string_view(__s));
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
int compare(size_type __pos1, size_type __n1, const _CharT* __s, size_type __n2) const
{
return substr(__pos1, __n1).compare(basic_string_view(__s, __n2));
}
// find
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find(basic_string_view __s, size_type __pos = 0) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find(): received nullptr");
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find(_CharT __c, size_type __pos = 0) const _NOEXCEPT
{
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find(): received nullptr");
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find(const _CharT* __s, size_type __pos = 0) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::find(): received nullptr");
return __str_find<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
// rfind
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type rfind(basic_string_view __s, size_type __pos = npos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find(): received nullptr");
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type rfind(_CharT __c, size_type __pos = npos) const _NOEXCEPT
{
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type rfind(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::rfind(): received nullptr");
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type rfind(const _CharT* __s, size_type __pos=npos) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::rfind(): received nullptr");
return __str_rfind<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
// find_first_of
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_of(basic_string_view __s, size_type __pos = 0) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_first_of(): received nullptr");
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_of(_CharT __c, size_type __pos = 0) const _NOEXCEPT
{ return find(__c, __pos); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_of(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_first_of(): received nullptr");
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_of(const _CharT* __s, size_type __pos=0) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::find_first_of(): received nullptr");
return __str_find_first_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
// find_last_of
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_of(basic_string_view __s, size_type __pos=npos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_last_of(): received nullptr");
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_of(_CharT __c, size_type __pos = npos) const _NOEXCEPT
{ return rfind(__c, __pos); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_of(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_last_of(): received nullptr");
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_of(const _CharT* __s, size_type __pos=npos) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::find_last_of(): received nullptr");
return __str_find_last_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
// find_first_not_of
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(basic_string_view __s, size_type __pos=0) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_first_not_of(): received nullptr");
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(_CharT __c, size_type __pos=0) const _NOEXCEPT
{
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_first_not_of(): received nullptr");
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_first_not_of(const _CharT* __s, size_type __pos=0) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::find_first_not_of(): received nullptr");
return __str_find_first_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
// find_last_not_of
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(basic_string_view __s, size_type __pos=npos) const _NOEXCEPT
{
_LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_last_not_of(): received nullptr");
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s.data(), __pos, __s.size());
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(_CharT __c, size_type __pos=npos) const _NOEXCEPT
{
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __c, __pos);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const
{
_LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_last_not_of(): received nullptr");
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, __n);
}
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
size_type find_last_not_of(const _CharT* __s, size_type __pos=npos) const
{
_LIBCPP_ASSERT(__s != nullptr, "string_view::find_last_not_of(): received nullptr");
return __str_find_last_not_of<value_type, size_type, traits_type, npos>
(data(), size(), __s, __pos, traits_type::length(__s));
}
#if _LIBCPP_STD_VER > 17
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(basic_string_view __s) const _NOEXCEPT
{ return size() >= __s.size() && compare(0, __s.size(), __s) == 0; }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(value_type __c) const _NOEXCEPT
{ return !empty() && _Traits::eq(front(), __c); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool starts_with(const value_type* __s) const _NOEXCEPT
{ return starts_with(basic_string_view(__s)); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(basic_string_view __s) const _NOEXCEPT
{ return size() >= __s.size() && compare(size() - __s.size(), npos, __s) == 0; }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(value_type __c) const _NOEXCEPT
{ return !empty() && _Traits::eq(back(), __c); }
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool ends_with(const value_type* __s) const _NOEXCEPT
{ return ends_with(basic_string_view(__s)); }
#endif
private:
const value_type* __data;
size_type __size;
};
// [string.view.comparison]
// operator ==
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator==(basic_string_view<_CharT, _Traits> __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size()) return false;
return __lhs.compare(__rhs) == 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator==(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size()) return false;
return __lhs.compare(__rhs) == 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator==(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size()) return false;
return __lhs.compare(__rhs) == 0;
}
// operator !=
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator!=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size())
return true;
return __lhs.compare(__rhs) != 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator!=(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size())
return true;
return __lhs.compare(__rhs) != 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator!=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
if ( __lhs.size() != __rhs.size())
return true;
return __lhs.compare(__rhs) != 0;
}
// operator <
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) < 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) < 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) < 0;
}
// operator >
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator> (basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) > 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator>(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) > 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator>(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) > 0;
}
// operator <=
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) <= 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<=(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) <= 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator<=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) <= 0;
}
// operator >=
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator>=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) >= 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator>=(basic_string_view<_CharT, _Traits> __lhs,
typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) >= 0;
}
template<class _CharT, class _Traits>
_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
bool operator>=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs,
basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT
{
return __lhs.compare(__rhs) >= 0;
}
template<class _CharT, class _Traits>
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
basic_string_view<_CharT, _Traits> __str);
typedef basic_string_view<char> string_view;
#ifndef _LIBCPP_NO_HAS_CHAR8_T
typedef basic_string_view<char8_t> u8string_view;
#endif
typedef basic_string_view<char16_t> u16string_view;
typedef basic_string_view<char32_t> u32string_view;
typedef basic_string_view<wchar_t> wstring_view;
// [string.view.hash]
template<class _CharT>
struct _LIBCPP_TEMPLATE_VIS hash<basic_string_view<_CharT, char_traits<_CharT> > >
: public unary_function<basic_string_view<_CharT, char_traits<_CharT> >, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const basic_string_view<_CharT, char_traits<_CharT> > __val) const _NOEXCEPT {
return __do_string_hash(__val.data(), __val.data() + __val.size());
}
};
#if _LIBCPP_STD_VER > 11
inline namespace literals
{
inline namespace string_view_literals
{
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
basic_string_view<char> operator "" sv(const char *__str, size_t __len) _NOEXCEPT
{
return basic_string_view<char> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
basic_string_view<wchar_t> operator "" sv(const wchar_t *__str, size_t __len) _NOEXCEPT
{
return basic_string_view<wchar_t> (__str, __len);
}
#ifndef _LIBCPP_NO_HAS_CHAR8_T
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
basic_string_view<char8_t> operator "" sv(const char8_t *__str, size_t __len) _NOEXCEPT
{
return basic_string_view<char8_t> (__str, __len);
}
#endif
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
basic_string_view<char16_t> operator "" sv(const char16_t *__str, size_t __len) _NOEXCEPT
{
return basic_string_view<char16_t> (__str, __len);
}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
basic_string_view<char32_t> operator "" sv(const char32_t *__str, size_t __len) _NOEXCEPT
{
return basic_string_view<char32_t> (__str, __len);
}
}
}
#endif
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_STRING_VIEW

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// -*- C++ -*-
//===---------------------------- system_error ----------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_SYSTEM_ERROR
#define _LIBCPP_SYSTEM_ERROR
/*
system_error synopsis
namespace std
{
class error_category
{
public:
virtual ~error_category() noexcept;
constexpr error_category();
error_category(const error_category&) = delete;
error_category& operator=(const error_category&) = delete;
virtual const char* name() const noexcept = 0;
virtual error_condition default_error_condition(int ev) const noexcept;
virtual bool equivalent(int code, const error_condition& condition) const noexcept;
virtual bool equivalent(const error_code& code, int condition) const noexcept;
virtual string message(int ev) const = 0;
bool operator==(const error_category& rhs) const noexcept;
bool operator!=(const error_category& rhs) const noexcept;
bool operator<(const error_category& rhs) const noexcept;
};
const error_category& generic_category() noexcept;
const error_category& system_category() noexcept;
template <class T> struct is_error_code_enum
: public false_type {};
template <class T> struct is_error_condition_enum
: public false_type {};
template <class _Tp>
inline constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value; // C++17
template <class _Tp>
inline constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value; // C++17
class error_code
{
public:
// constructors:
error_code() noexcept;
error_code(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code(ErrorCodeEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorCodeEnum>
error_code& operator=(ErrorCodeEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
error_condition default_error_condition() const noexcept;
string message() const;
explicit operator bool() const noexcept;
};
// non-member functions:
bool operator<(const error_code& lhs, const error_code& rhs) noexcept;
template <class charT, class traits>
basic_ostream<charT,traits>&
operator<<(basic_ostream<charT,traits>& os, const error_code& ec);
class error_condition
{
public:
// constructors:
error_condition() noexcept;
error_condition(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition(ErrorConditionEnum e) noexcept;
// modifiers:
void assign(int val, const error_category& cat) noexcept;
template <class ErrorConditionEnum>
error_condition& operator=(ErrorConditionEnum e) noexcept;
void clear() noexcept;
// observers:
int value() const noexcept;
const error_category& category() const noexcept;
string message() const noexcept;
explicit operator bool() const noexcept;
};
bool operator<(const error_condition& lhs, const error_condition& rhs) noexcept;
class system_error
: public runtime_error
{
public:
system_error(error_code ec, const string& what_arg);
system_error(error_code ec, const char* what_arg);
system_error(error_code ec);
system_error(int ev, const error_category& ecat, const string& what_arg);
system_error(int ev, const error_category& ecat, const char* what_arg);
system_error(int ev, const error_category& ecat);
const error_code& code() const noexcept;
const char* what() const noexcept;
};
template <> struct is_error_condition_enum<errc>
: true_type { }
error_code make_error_code(errc e) noexcept;
error_condition make_error_condition(errc e) noexcept;
// Comparison operators:
bool operator==(const error_code& lhs, const error_code& rhs) noexcept;
bool operator==(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator==(const error_condition& lhs, const error_code& rhs) noexcept;
bool operator==(const error_condition& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_code& lhs, const error_condition& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_code& rhs) noexcept;
bool operator!=(const error_condition& lhs, const error_condition& rhs) noexcept;
template <> struct hash<std::error_code>;
template <> struct hash<std::error_condition>;
} // std
*/
#include "third_party/libcxx/__errc"
#include "third_party/libcxx/type_traits"
#include "third_party/libcxx/stdexcept"
#include "third_party/libcxx/__functional_base"
#include "third_party/libcxx/string"
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// is_error_code_enum
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS is_error_code_enum
: public false_type {};
#if _LIBCPP_STD_VER > 14
template <class _Tp>
_LIBCPP_INLINE_VAR constexpr size_t is_error_code_enum_v = is_error_code_enum<_Tp>::value;
#endif
// is_error_condition_enum
template <class _Tp>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum
: public false_type {};
#if _LIBCPP_STD_VER > 14
template <class _Tp>
_LIBCPP_INLINE_VAR constexpr size_t is_error_condition_enum_v = is_error_condition_enum<_Tp>::value;
#endif
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum<errc>
: true_type { };
#ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
template <>
struct _LIBCPP_TEMPLATE_VIS is_error_condition_enum<errc::__lx>
: true_type { };
#endif
class _LIBCPP_TYPE_VIS error_condition;
class _LIBCPP_TYPE_VIS error_code;
// class error_category
class _LIBCPP_HIDDEN __do_message;
class _LIBCPP_TYPE_VIS error_category
{
public:
virtual ~error_category() _NOEXCEPT;
#if defined(_LIBCPP_BUILDING_LIBRARY) && \
defined(_LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS)
error_category() _NOEXCEPT;
#else
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX11 error_category() _NOEXCEPT _LIBCPP_DEFAULT
#endif
private:
error_category(const error_category&);// = delete;
error_category& operator=(const error_category&);// = delete;
public:
virtual const char* name() const _NOEXCEPT = 0;
virtual error_condition default_error_condition(int __ev) const _NOEXCEPT;
virtual bool equivalent(int __code, const error_condition& __condition) const _NOEXCEPT;
virtual bool equivalent(const error_code& __code, int __condition) const _NOEXCEPT;
virtual string message(int __ev) const = 0;
_LIBCPP_INLINE_VISIBILITY
bool operator==(const error_category& __rhs) const _NOEXCEPT {return this == &__rhs;}
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const error_category& __rhs) const _NOEXCEPT {return !(*this == __rhs);}
_LIBCPP_INLINE_VISIBILITY
bool operator< (const error_category& __rhs) const _NOEXCEPT {return this < &__rhs;}
friend class _LIBCPP_HIDDEN __do_message;
};
class _LIBCPP_HIDDEN __do_message
: public error_category
{
public:
virtual string message(int ev) const;
};
_LIBCPP_FUNC_VIS const error_category& generic_category() _NOEXCEPT;
_LIBCPP_FUNC_VIS const error_category& system_category() _NOEXCEPT;
class _LIBCPP_TYPE_VIS error_condition
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_INLINE_VISIBILITY
error_condition() _NOEXCEPT : __val_(0), __cat_(&generic_category()) {}
_LIBCPP_INLINE_VISIBILITY
error_condition(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_INLINE_VISIBILITY
error_condition(_Ep __e,
typename enable_if<is_error_condition_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_condition(__e);}
_LIBCPP_INLINE_VISIBILITY
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_error_condition_enum<_Ep>::value,
error_condition&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_condition(__e); return *this;}
_LIBCPP_INLINE_VISIBILITY
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &generic_category();
}
_LIBCPP_INLINE_VISIBILITY
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_INLINE_VISIBILITY
const error_category& category() const _NOEXCEPT {return *__cat_;}
string message() const;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_condition
make_error_condition(errc __e) _NOEXCEPT
{
return error_condition(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() < __y.category()
|| (__x.category() == __y.category() && __x.value() < __y.value());
}
// error_code
class _LIBCPP_TYPE_VIS error_code
{
int __val_;
const error_category* __cat_;
public:
_LIBCPP_INLINE_VISIBILITY
error_code() _NOEXCEPT : __val_(0), __cat_(&system_category()) {}
_LIBCPP_INLINE_VISIBILITY
error_code(int __val, const error_category& __cat) _NOEXCEPT
: __val_(__val), __cat_(&__cat) {}
template <class _Ep>
_LIBCPP_INLINE_VISIBILITY
error_code(_Ep __e,
typename enable_if<is_error_code_enum<_Ep>::value>::type* = 0
) _NOEXCEPT
{*this = make_error_code(__e);}
_LIBCPP_INLINE_VISIBILITY
void assign(int __val, const error_category& __cat) _NOEXCEPT
{
__val_ = __val;
__cat_ = &__cat;
}
template <class _Ep>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
is_error_code_enum<_Ep>::value,
error_code&
>::type
operator=(_Ep __e) _NOEXCEPT
{*this = make_error_code(__e); return *this;}
_LIBCPP_INLINE_VISIBILITY
void clear() _NOEXCEPT
{
__val_ = 0;
__cat_ = &system_category();
}
_LIBCPP_INLINE_VISIBILITY
int value() const _NOEXCEPT {return __val_;}
_LIBCPP_INLINE_VISIBILITY
const error_category& category() const _NOEXCEPT {return *__cat_;}
_LIBCPP_INLINE_VISIBILITY
error_condition default_error_condition() const _NOEXCEPT
{return __cat_->default_error_condition(__val_);}
string message() const;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_EXPLICIT
operator bool() const _NOEXCEPT {return __val_ != 0;}
};
inline _LIBCPP_INLINE_VISIBILITY
error_code
make_error_code(errc __e) _NOEXCEPT
{
return error_code(static_cast<int>(__e), generic_category());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator<(const error_code& __x, const error_code& __y) _NOEXCEPT
{
return __x.category() < __y.category()
|| (__x.category() == __y.category() && __x.value() < __y.value());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_code& __x, const error_code& __y) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_code& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category().equivalent(__x.value(), __y)
|| __y.category().equivalent(__x, __y.value());
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_condition& __x, const error_code& __y) _NOEXCEPT
{
return __y == __x;
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator==(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{
return __x.category() == __y.category() && __x.value() == __y.value();
}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_code& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_code& __y) _NOEXCEPT
{return !(__x == __y);}
inline _LIBCPP_INLINE_VISIBILITY
bool
operator!=(const error_condition& __x, const error_condition& __y) _NOEXCEPT
{return !(__x == __y);}
template <>
struct _LIBCPP_TEMPLATE_VIS hash<error_code>
: public unary_function<error_code, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const error_code& __ec) const _NOEXCEPT
{
return static_cast<size_t>(__ec.value());
}
};
template <>
struct _LIBCPP_TEMPLATE_VIS hash<error_condition>
: public unary_function<error_condition, size_t>
{
_LIBCPP_INLINE_VISIBILITY
size_t operator()(const error_condition& __ec) const _NOEXCEPT
{
return static_cast<size_t>(__ec.value());
}
};
// system_error
class _LIBCPP_TYPE_VIS system_error
: public runtime_error
{
error_code __ec_;
public:
system_error(error_code __ec, const string& __what_arg);
system_error(error_code __ec, const char* __what_arg);
system_error(error_code __ec);
system_error(int __ev, const error_category& __ecat, const string& __what_arg);
system_error(int __ev, const error_category& __ecat, const char* __what_arg);
system_error(int __ev, const error_category& __ecat);
~system_error() _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
const error_code& code() const _NOEXCEPT {return __ec_;}
private:
static string __init(const error_code&, string);
};
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS
void __throw_system_error(int ev, const char* what_arg);
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_SYSTEM_ERROR

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//===---------------------- system_error.cpp ------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/__config"
#include "third_party/libcxx/system_error"
#include "third_party/libcxx/config_elast.h"
#include "third_party/libcxx/cerrno"
#include "third_party/libcxx/cstring"
#include "third_party/libcxx/cstdio"
#include "third_party/libcxx/cstdlib"
#include "third_party/libcxx/string"
#include "third_party/libcxx/string.h"
#include "third_party/libcxx/__debug"
#if defined(__ANDROID__)
#include "third_party/libcxx/android/api-level.h"
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
// class error_category
#if defined( \
_LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS)
error_category::error_category() _NOEXCEPT {}
#endif
error_category::~error_category() _NOEXCEPT {}
error_condition
error_category::default_error_condition(int ev) const _NOEXCEPT {
return error_condition(ev, *this);
}
bool error_category::equivalent(
int code, const error_condition& condition) const _NOEXCEPT {
return default_error_condition(code) == condition;
}
bool error_category::equivalent(const error_code& code,
int condition) const _NOEXCEPT {
return *this == code.category() && code.value() == condition;
}
#if !defined(_LIBCPP_HAS_NO_THREADS)
namespace {
// GLIBC also uses 1024 as the maximum buffer size internally.
constexpr size_t strerror_buff_size = 1024;
string do_strerror_r(int ev);
#if defined(_LIBCPP_MSVCRT_LIKE)
string do_strerror_r(int ev) {
char buffer[strerror_buff_size];
if (::strerror_s(buffer, strerror_buff_size, ev) == 0)
return string(buffer);
std::snprintf(buffer, strerror_buff_size, "unknown error %d", ev);
return string(buffer);
}
#else
// Only one of the two following functions will be used, depending on
// the return type of strerror_r:
// For the GNU variant, a char* return value:
__attribute__((unused)) const char*
handle_strerror_r_return(char* strerror_return, char* buffer) {
// GNU always returns a string pointer in its return value. The
// string might point to either the input buffer, or a static
// buffer, but we don't care which.
return strerror_return;
}
// For the POSIX variant: an int return value.
__attribute__((unused)) const char*
handle_strerror_r_return(int strerror_return, char* buffer) {
// The POSIX variant either:
// - fills in the provided buffer and returns 0
// - returns a positive error value, or
// - returns -1 and fills in errno with an error value.
if (strerror_return == 0)
return buffer;
// Only handle EINVAL. Other errors abort.
int new_errno = strerror_return == -1 ? errno : strerror_return;
if (new_errno == EINVAL)
return "";
_LIBCPP_ASSERT(new_errno == ERANGE, "unexpected error from ::strerror_r");
// FIXME maybe? 'strerror_buff_size' is likely to exceed the
// maximum error size so ERANGE shouldn't be returned.
std::abort();
}
// This function handles both GNU and POSIX variants, dispatching to
// one of the two above functions.
string do_strerror_r(int ev) {
char buffer[strerror_buff_size];
// Preserve errno around the call. (The C++ standard requires that
// system_error functions not modify errno).
const int old_errno = errno;
const char* error_message = handle_strerror_r_return(
::strerror_r(ev, buffer, strerror_buff_size), buffer);
// If we didn't get any message, print one now.
if (!error_message[0]) {
std::snprintf(buffer, strerror_buff_size, "Unknown error %d", ev);
error_message = buffer;
}
errno = old_errno;
return string(error_message);
}
#endif
} // end namespace
#endif
string __do_message::message(int ev) const {
#if defined(_LIBCPP_HAS_NO_THREADS)
return string(::strerror(ev));
#else
return do_strerror_r(ev);
#endif
}
class _LIBCPP_HIDDEN __generic_error_category : public __do_message {
public:
virtual const char* name() const _NOEXCEPT;
virtual string message(int ev) const;
};
const char* __generic_error_category::name() const _NOEXCEPT {
return "generic";
}
string __generic_error_category::message(int ev) const {
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return string("unspecified generic_category error");
#endif // _LIBCPP_ELAST
return __do_message::message(ev);
}
const error_category& generic_category() _NOEXCEPT {
static __generic_error_category s;
return s;
}
class _LIBCPP_HIDDEN __system_error_category : public __do_message {
public:
virtual const char* name() const _NOEXCEPT;
virtual string message(int ev) const;
virtual error_condition default_error_condition(int ev) const _NOEXCEPT;
};
const char* __system_error_category::name() const _NOEXCEPT { return "system"; }
string __system_error_category::message(int ev) const {
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return string("unspecified system_category error");
#endif // _LIBCPP_ELAST
return __do_message::message(ev);
}
error_condition
__system_error_category::default_error_condition(int ev) const _NOEXCEPT {
#ifdef _LIBCPP_ELAST
if (ev > _LIBCPP_ELAST)
return error_condition(ev, system_category());
#endif // _LIBCPP_ELAST
return error_condition(ev, generic_category());
}
const error_category& system_category() _NOEXCEPT {
static __system_error_category s;
return s;
}
// error_condition
string error_condition::message() const { return __cat_->message(__val_); }
// error_code
string error_code::message() const { return __cat_->message(__val_); }
// system_error
string system_error::__init(const error_code& ec, string what_arg) {
if (ec) {
if (!what_arg.empty())
what_arg += ": ";
what_arg += ec.message();
}
return what_arg;
}
system_error::system_error(error_code ec, const string& what_arg)
: runtime_error(__init(ec, what_arg)), __ec_(ec) {}
system_error::system_error(error_code ec, const char* what_arg)
: runtime_error(__init(ec, what_arg)), __ec_(ec) {}
system_error::system_error(error_code ec)
: runtime_error(__init(ec, "")), __ec_(ec) {}
system_error::system_error(int ev, const error_category& ecat,
const string& what_arg)
: runtime_error(__init(error_code(ev, ecat), what_arg)),
__ec_(error_code(ev, ecat)) {}
system_error::system_error(int ev, const error_category& ecat,
const char* what_arg)
: runtime_error(__init(error_code(ev, ecat), what_arg)),
__ec_(error_code(ev, ecat)) {}
system_error::system_error(int ev, const error_category& ecat)
: runtime_error(__init(error_code(ev, ecat), "")),
__ec_(error_code(ev, ecat)) {}
system_error::~system_error() _NOEXCEPT {}
void __throw_system_error(int ev, const char* what_arg) {
#ifndef _LIBCPP_NO_EXCEPTIONS
throw system_error(error_code(ev, system_category()), what_arg);
#else
(void)ev;
(void)what_arg;
_VSTD::abort();
#endif
}
_LIBCPP_END_NAMESPACE_STD

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// -*- C++ -*-
//===-------------------------- typeinfo ----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef __LIBCPP_TYPEINFO
#define __LIBCPP_TYPEINFO
/*
typeinfo synopsis
namespace std {
class type_info
{
public:
virtual ~type_info();
bool operator==(const type_info& rhs) const noexcept;
bool operator!=(const type_info& rhs) const noexcept;
bool before(const type_info& rhs) const noexcept;
size_t hash_code() const noexcept;
const char* name() const noexcept;
type_info(const type_info& rhs) = delete;
type_info& operator=(const type_info& rhs) = delete;
};
class bad_cast
: public exception
{
public:
bad_cast() noexcept;
bad_cast(const bad_cast&) noexcept;
bad_cast& operator=(const bad_cast&) noexcept;
virtual const char* what() const noexcept;
};
class bad_typeid
: public exception
{
public:
bad_typeid() noexcept;
bad_typeid(const bad_typeid&) noexcept;
bad_typeid& operator=(const bad_typeid&) noexcept;
virtual const char* what() const noexcept;
};
} // std
*/
#include "third_party/libcxx/__config"
#include "third_party/libcxx/exception"
#include "third_party/libcxx/cstddef"
#include "third_party/libcxx/cstdint"
#ifdef _LIBCPP_NO_EXCEPTIONS
#include "third_party/libcxx/cstdlib"
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#if defined(_LIBCPP_ABI_VCRUNTIME)
#include "third_party/libcxx/vcruntime_typeinfo.h"
#else
namespace std // purposefully not using versioning namespace
{
#if defined(_LIBCPP_ABI_MICROSOFT)
class _LIBCPP_EXCEPTION_ABI type_info
{
type_info& operator=(const type_info&);
type_info(const type_info&);
mutable struct {
const char *__undecorated_name;
const char __decorated_name[1];
} __data;
int __compare(const type_info &__rhs) const _NOEXCEPT;
public:
_LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
virtual ~type_info();
const char *name() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool before(const type_info& __arg) const _NOEXCEPT {
return __compare(__arg) < 0;
}
size_t hash_code() const _NOEXCEPT;
_LIBCPP_INLINE_VISIBILITY
bool operator==(const type_info& __arg) const _NOEXCEPT {
return __compare(__arg) == 0;
}
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const type_info& __arg) const _NOEXCEPT
{ return !operator==(__arg); }
};
#else // !defined(_LIBCPP_ABI_MICROSOFT)
// ========================================================================== //
// Implementations
// ========================================================================== //
// ------------------------------------------------------------------------- //
// Unique
// ------------------------------------------------------------------------- //
// This implementation of type_info assumes a unique copy of the RTTI for a
// given type inside a program. This is a valid assumption when abiding to
// Itanium ABI (http://itanium-cxx-abi.github.io/cxx-abi/abi.html#vtable-components).
// Under this assumption, we can always compare the addresses of the type names
// to implement equality-comparison of type_infos instead of having to perform
// a deep string comparison.
// -------------------------------------------------------------------------- //
// NonUnique
// -------------------------------------------------------------------------- //
// This implementation of type_info does not assume there is always a unique
// copy of the RTTI for a given type inside a program. For various reasons
// the linker may have failed to merge every copy of a types RTTI
// (For example: -Bsymbolic or llvm.org/PR37398). Under this assumption, two
// type_infos are equal if their addresses are equal or if a deep string
// comparison is equal.
// -------------------------------------------------------------------------- //
// NonUniqueARMRTTIBit
// -------------------------------------------------------------------------- //
// This implementation of type_info does not assume always a unique copy of
// the RTTI for a given type inside a program. It packs the pointer to the
// type name into a uintptr_t and reserves the high bit of that pointer (which
// is assumed to be free for use under the ABI in use) to represent whether
// that specific copy of the RTTI can be assumed unique inside the program.
// To implement equality-comparison of type_infos, we check whether BOTH
// type_infos are guaranteed unique, and if so, we simply compare the addresses
// of their type names instead of doing a deep string comparison, which is
// faster. If at least one of the type_infos can't guarantee uniqueness, we
// have no choice but to fall back to a deep string comparison.
//
// This implementation is specific to ARM64 on Apple platforms.
//
// Note that the compiler is the one setting (or unsetting) the high bit of
// the pointer when it constructs the type_info, depending on whether it can
// guarantee uniqueness for that specific type_info.
struct __type_info_implementations {
struct __string_impl_base {
typedef const char* __type_name_t;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
_LIBCPP_CONSTEXPR static const char* __type_name_to_string(__type_name_t __v) _NOEXCEPT {
return __v;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
_LIBCPP_CONSTEXPR static __type_name_t __string_to_type_name(const char* __v) _NOEXCEPT {
return __v;
}
};
struct __unique_impl : __string_impl_base {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static size_t __hash(__type_name_t __v) _NOEXCEPT {
return reinterpret_cast<size_t>(__v);
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __eq(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
return __lhs == __rhs;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __lt(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
return __lhs < __rhs;
}
};
struct __non_unique_impl : __string_impl_base {
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static size_t __hash(__type_name_t __ptr) _NOEXCEPT {
size_t __hash = 5381;
while (unsigned char __c = static_cast<unsigned char>(*__ptr++))
__hash = (__hash * 33) ^ __c;
return __hash;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __eq(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
return __lhs == __rhs || __builtin_strcmp(__lhs, __rhs) == 0;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __lt(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
return __builtin_strcmp(__lhs, __rhs) < 0;
}
};
struct __non_unique_arm_rtti_bit_impl {
typedef uintptr_t __type_name_t;
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static const char* __type_name_to_string(__type_name_t __v) _NOEXCEPT {
return reinterpret_cast<const char*>(__v &
~__non_unique_rtti_bit::value);
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static __type_name_t __string_to_type_name(const char* __v) _NOEXCEPT {
return reinterpret_cast<__type_name_t>(__v);
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static size_t __hash(__type_name_t __v) _NOEXCEPT {
if (__is_type_name_unique(__v))
return reinterpret_cast<size_t>(__v);
return __non_unique_impl::__hash(__type_name_to_string(__v));
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __eq(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
if (__lhs == __rhs)
return true;
if (__is_type_name_unique(__lhs, __rhs))
return false;
return __builtin_strcmp(__type_name_to_string(__lhs), __type_name_to_string(__rhs)) == 0;
}
_LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
static bool __lt(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
if (__is_type_name_unique(__lhs, __rhs))
return __lhs < __rhs;
return __builtin_strcmp(__type_name_to_string(__lhs), __type_name_to_string(__rhs)) < 0;
}
private:
// The unique bit is the top bit. It is expected that __type_name_t is 64 bits when
// this implementation is actually used.
typedef std::integral_constant<__type_name_t,
(1ULL << ((__CHAR_BIT__ * sizeof(__type_name_t)) - 1))> __non_unique_rtti_bit;
_LIBCPP_INLINE_VISIBILITY
static bool __is_type_name_unique(__type_name_t __lhs) _NOEXCEPT {
return !(__lhs & __non_unique_rtti_bit::value);
}
_LIBCPP_INLINE_VISIBILITY
static bool __is_type_name_unique(__type_name_t __lhs, __type_name_t __rhs) _NOEXCEPT {
return !((__lhs & __rhs) & __non_unique_rtti_bit::value);
}
};
typedef
#if defined(__APPLE__) && defined(__LP64__) && !defined(__x86_64__)
__non_unique_arm_rtti_bit_impl
#elif _LIBCPP_HAS_MERGED_TYPEINFO_NAMES_DEFAULT == 0
__non_unique_impl
#elif _LIBCPP_HAS_MERGED_TYPEINFO_NAMES_DEFAULT == 1
__unique_impl
#else
# error invalid configuration for _LIBCPP_HAS_MERGED_TYPEINFO_NAMES_DEFAULT
#endif
__impl;
};
class _LIBCPP_EXCEPTION_ABI type_info
{
type_info& operator=(const type_info&);
type_info(const type_info&);
protected:
typedef __type_info_implementations::__impl __impl;
__impl::__type_name_t __type_name;
_LIBCPP_INLINE_VISIBILITY
explicit type_info(const char* __n)
: __type_name(__impl::__string_to_type_name(__n)) {}
public:
_LIBCPP_AVAILABILITY_TYPEINFO_VTABLE
virtual ~type_info();
_LIBCPP_INLINE_VISIBILITY
const char* name() const _NOEXCEPT
{
return __impl::__type_name_to_string(__type_name);
}
_LIBCPP_INLINE_VISIBILITY
bool before(const type_info& __arg) const _NOEXCEPT
{
return __impl::__lt(__type_name, __arg.__type_name);
}
_LIBCPP_INLINE_VISIBILITY
size_t hash_code() const _NOEXCEPT
{
return __impl::__hash(__type_name);
}
_LIBCPP_INLINE_VISIBILITY
bool operator==(const type_info& __arg) const _NOEXCEPT
{
return __impl::__eq(__type_name, __arg.__type_name);
}
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const type_info& __arg) const _NOEXCEPT
{ return !operator==(__arg); }
};
#endif // defined(_LIBCPP_ABI_MICROSOFT)
class _LIBCPP_EXCEPTION_ABI bad_cast
: public exception
{
public:
bad_cast() _NOEXCEPT;
virtual ~bad_cast() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
class _LIBCPP_EXCEPTION_ABI bad_typeid
: public exception
{
public:
bad_typeid() _NOEXCEPT;
virtual ~bad_typeid() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT;
};
} // std
#endif // defined(_LIBCPP_ABI_VCRUNTIME)
_LIBCPP_BEGIN_NAMESPACE_STD
_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
void __throw_bad_cast()
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw bad_cast();
#else
_VSTD::abort();
#endif
}
_LIBCPP_END_NAMESPACE_STD
#endif // __LIBCPP_TYPEINFO

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