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Release Cosmopolitan v3.6.0

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This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
This commit is contained in:
Justine Tunney 2024-07-23 03:16:17 -07:00
parent 62ace3623a
commit 5660ec4741
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GPG key ID: BE714B4575D6E328
1585 changed files with 117353 additions and 271644 deletions
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80
third_party/libcxx/sso_allocator.h vendored Normal file
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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_SSO_ALLOCATOR_H
#define _LIBCPP_SSO_ALLOCATOR_H
#include <__config>
#include <cstddef>
#include <memory>
#include <new>
#include <type_traits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, size_t _Np>
class _LIBCPP_HIDDEN __sso_allocator;
template <size_t _Np>
class _LIBCPP_HIDDEN __sso_allocator<void, _Np> {
public:
typedef const void* const_pointer;
typedef void value_type;
};
template <class _Tp, size_t _Np>
class _LIBCPP_HIDDEN __sso_allocator {
alignas(_Tp) std::byte buf_[sizeof(_Tp) * _Np];
bool __allocated_;
public:
typedef size_t size_type;
typedef _Tp* pointer;
typedef _Tp value_type;
template <class U>
struct rebind {
using other = __sso_allocator<U, _Np>;
};
_LIBCPP_HIDE_FROM_ABI __sso_allocator() throw() : __allocated_(false) {}
_LIBCPP_HIDE_FROM_ABI __sso_allocator(const __sso_allocator&) throw() : __allocated_(false) {}
template <class _Up>
_LIBCPP_HIDE_FROM_ABI __sso_allocator(const __sso_allocator<_Up, _Np>&) throw() : __allocated_(false) {}
private:
__sso_allocator& operator=(const __sso_allocator&);
public:
_LIBCPP_HIDE_FROM_ABI pointer allocate(size_type __n, typename __sso_allocator<void, _Np>::const_pointer = nullptr) {
if (!__allocated_ && __n <= _Np) {
__allocated_ = true;
return (pointer)&buf_;
}
return allocator<_Tp>().allocate(__n);
}
_LIBCPP_HIDE_FROM_ABI void deallocate(pointer __p, size_type __n) {
if (__p == (pointer)&buf_)
__allocated_ = false;
else
allocator<_Tp>().deallocate(__p, __n);
}
_LIBCPP_HIDE_FROM_ABI size_type max_size() const throw() { return size_type(~0) / sizeof(_Tp); }
_LIBCPP_HIDE_FROM_ABI bool operator==(const __sso_allocator& __a) const { return &buf_ == &__a.buf_; }
_LIBCPP_HIDE_FROM_ABI bool operator!=(const __sso_allocator& __a) const { return &buf_ != &__a.buf_; }
};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_SSO_ALLOCATOR_H