mirror of
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Upgrade to 2022-era LLVM LIBCXX
This commit is contained in:
Justine Tunney
parent
2f4ca71f26
commit
8e68384e15
2078 changed files with 165657 additions and 65010 deletions
489
third_party/libcxx/__split_buffer
vendored
489
third_party/libcxx/__split_buffer
vendored
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@ -1,182 +1,229 @@
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// -*- C++ -*-
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#ifndef _LIBCPP_SPLIT_BUFFER
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#define _LIBCPP_SPLIT_BUFFER
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "third_party/libcxx/__config"
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#include "third_party/libcxx/type_traits"
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#include "third_party/libcxx/algorithm"
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#ifndef _LIBCPP___SPLIT_BUFFER
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#define _LIBCPP___SPLIT_BUFFER
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#include <__algorithm/max.h>
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#include <__algorithm/move.h>
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#include <__algorithm/move_backward.h>
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#include <__config>
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#include <__iterator/distance.h>
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#include <__iterator/iterator_traits.h>
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#include <__iterator/move_iterator.h>
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#include <__memory/allocate_at_least.h>
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#include <__memory/allocator.h>
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#include <__memory/allocator_traits.h>
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#include <__memory/compressed_pair.h>
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#include <__memory/pointer_traits.h>
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#include <__memory/swap_allocator.h>
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#include <__type_traits/add_lvalue_reference.h>
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#include <__type_traits/enable_if.h>
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#include <__type_traits/integral_constant.h>
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#include <__type_traits/is_nothrow_default_constructible.h>
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#include <__type_traits/is_nothrow_move_assignable.h>
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#include <__type_traits/is_nothrow_move_constructible.h>
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#include <__type_traits/is_swappable.h>
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#include <__type_traits/is_trivially_destructible.h>
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#include <__type_traits/remove_reference.h>
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#include <__utility/forward.h>
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#include <__utility/move.h>
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#include <cstddef>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include "third_party/libcxx/__undef_macros"
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <bool>
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class __split_buffer_common
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{
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protected:
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void __throw_length_error() const;
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void __throw_out_of_range() const;
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};
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// __split_buffer allocates a contiguous chunk of memory and stores objects in the range [__begin_, __end_).
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// It has uninitialized memory in the ranges [__first_, __begin_) and [__end_, __end_cap_.first()). That allows
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// it to grow both in the front and back without having to move the data.
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template <class _Tp, class _Allocator = allocator<_Tp> >
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struct __split_buffer
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: private __split_buffer_common<true>
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{
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private:
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__split_buffer(const __split_buffer&);
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__split_buffer& operator=(const __split_buffer&);
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public:
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typedef _Tp value_type;
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typedef _Allocator allocator_type;
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typedef typename remove_reference<allocator_type>::type __alloc_rr;
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typedef allocator_traits<__alloc_rr> __alloc_traits;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef typename __alloc_traits::size_type size_type;
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typedef typename __alloc_traits::difference_type difference_type;
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typedef typename __alloc_traits::pointer pointer;
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typedef typename __alloc_traits::const_pointer const_pointer;
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typedef pointer iterator;
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typedef const_pointer const_iterator;
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using value_type = _Tp;
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using allocator_type = _Allocator;
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using __alloc_rr = __libcpp_remove_reference_t<allocator_type>;
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using __alloc_traits = allocator_traits<__alloc_rr>;
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using reference = value_type&;
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using const_reference = const value_type&;
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using size_type = typename __alloc_traits::size_type;
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using difference_type = typename __alloc_traits::difference_type;
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using pointer = typename __alloc_traits::pointer;
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using const_pointer = typename __alloc_traits::const_pointer;
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using iterator = pointer;
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using const_iterator = const_pointer;
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pointer __first_;
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pointer __begin_;
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pointer __end_;
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__compressed_pair<pointer, allocator_type> __end_cap_;
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pointer __first_;
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pointer __begin_;
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pointer __end_;
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__compressed_pair<pointer, allocator_type> __end_cap_;
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typedef typename add_lvalue_reference<allocator_type>::type __alloc_ref;
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typedef typename add_lvalue_reference<allocator_type>::type __alloc_const_ref;
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using __alloc_ref = __add_lvalue_reference_t<allocator_type>;
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using __alloc_const_ref = __add_lvalue_reference_t<allocator_type>;
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_LIBCPP_INLINE_VISIBILITY __alloc_rr& __alloc() _NOEXCEPT {return __end_cap_.second();}
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_LIBCPP_INLINE_VISIBILITY const __alloc_rr& __alloc() const _NOEXCEPT {return __end_cap_.second();}
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_LIBCPP_INLINE_VISIBILITY pointer& __end_cap() _NOEXCEPT {return __end_cap_.first();}
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_LIBCPP_INLINE_VISIBILITY const pointer& __end_cap() const _NOEXCEPT {return __end_cap_.first();}
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__split_buffer(const __split_buffer&) = delete;
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__split_buffer& operator=(const __split_buffer&) = delete;
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_LIBCPP_INLINE_VISIBILITY
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__split_buffer()
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_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value);
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_LIBCPP_INLINE_VISIBILITY
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explicit __split_buffer(__alloc_rr& __a);
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_LIBCPP_INLINE_VISIBILITY
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explicit __split_buffer(const __alloc_rr& __a);
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__split_buffer(size_type __cap, size_type __start, __alloc_rr& __a);
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~__split_buffer();
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI __split_buffer()
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_NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value)
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: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __default_init_tag()) {}
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#ifndef _LIBCPP_CXX03_LANG
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__split_buffer(__split_buffer&& __c)
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_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
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__split_buffer(__split_buffer&& __c, const __alloc_rr& __a);
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__split_buffer& operator=(__split_buffer&& __c)
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_NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value &&
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is_nothrow_move_assignable<allocator_type>::value) ||
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!__alloc_traits::propagate_on_container_move_assignment::value);
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI explicit __split_buffer(__alloc_rr& __a)
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: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a) {}
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_LIBCPP_INLINE_VISIBILITY iterator begin() _NOEXCEPT {return __begin_;}
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_LIBCPP_INLINE_VISIBILITY const_iterator begin() const _NOEXCEPT {return __begin_;}
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_LIBCPP_INLINE_VISIBILITY iterator end() _NOEXCEPT {return __end_;}
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_LIBCPP_INLINE_VISIBILITY const_iterator end() const _NOEXCEPT {return __end_;}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI explicit __split_buffer(const __alloc_rr& __a)
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: __first_(nullptr), __begin_(nullptr), __end_(nullptr), __end_cap_(nullptr, __a) {}
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_LIBCPP_INLINE_VISIBILITY
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void clear() _NOEXCEPT
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{__destruct_at_end(__begin_);}
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_LIBCPP_INLINE_VISIBILITY size_type size() const {return static_cast<size_type>(__end_ - __begin_);}
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_LIBCPP_INLINE_VISIBILITY bool empty() const {return __end_ == __begin_;}
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_LIBCPP_INLINE_VISIBILITY size_type capacity() const {return static_cast<size_type>(__end_cap() - __first_);}
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_LIBCPP_INLINE_VISIBILITY size_type __front_spare() const {return static_cast<size_type>(__begin_ - __first_);}
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_LIBCPP_INLINE_VISIBILITY size_type __back_spare() const {return static_cast<size_type>(__end_cap() - __end_);}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
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__split_buffer(size_type __cap, size_type __start, __alloc_rr& __a);
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_LIBCPP_INLINE_VISIBILITY reference front() {return *__begin_;}
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_LIBCPP_INLINE_VISIBILITY const_reference front() const {return *__begin_;}
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_LIBCPP_INLINE_VISIBILITY reference back() {return *(__end_ - 1);}
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_LIBCPP_INLINE_VISIBILITY const_reference back() const {return *(__end_ - 1);}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI __split_buffer(__split_buffer&& __c)
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_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value);
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void reserve(size_type __n);
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void shrink_to_fit() _NOEXCEPT;
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void push_front(const_reference __x);
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_LIBCPP_INLINE_VISIBILITY void push_back(const_reference __x);
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#ifndef _LIBCPP_CXX03_LANG
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void push_front(value_type&& __x);
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void push_back(value_type&& __x);
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template <class... _Args>
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void emplace_back(_Args&&... __args);
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#endif // !defined(_LIBCPP_CXX03_LANG)
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI __split_buffer(__split_buffer&& __c, const __alloc_rr& __a);
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_LIBCPP_INLINE_VISIBILITY void pop_front() {__destruct_at_begin(__begin_+1);}
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_LIBCPP_INLINE_VISIBILITY void pop_back() {__destruct_at_end(__end_-1);}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI __split_buffer& operator=(__split_buffer&& __c)
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_NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value &&
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is_nothrow_move_assignable<allocator_type>::value) ||
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!__alloc_traits::propagate_on_container_move_assignment::value);
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void __construct_at_end(size_type __n);
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void __construct_at_end(size_type __n, const_reference __x);
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template <class _InputIter>
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typename enable_if
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<
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__is_input_iterator<_InputIter>::value &&
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!__is_forward_iterator<_InputIter>::value,
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void
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>::type
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__construct_at_end(_InputIter __first, _InputIter __last);
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template <class _ForwardIterator>
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typename enable_if
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<
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__is_forward_iterator<_ForwardIterator>::value,
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void
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>::type
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__construct_at_end(_ForwardIterator __first, _ForwardIterator __last);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI ~__split_buffer();
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_LIBCPP_INLINE_VISIBILITY void __destruct_at_begin(pointer __new_begin)
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{__destruct_at_begin(__new_begin, is_trivially_destructible<value_type>());}
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_LIBCPP_INLINE_VISIBILITY
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void __destruct_at_begin(pointer __new_begin, false_type);
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_LIBCPP_INLINE_VISIBILITY
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void __destruct_at_begin(pointer __new_begin, true_type);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI __alloc_rr& __alloc() _NOEXCEPT { return __end_cap_.second(); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const __alloc_rr& __alloc() const _NOEXCEPT {
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return __end_cap_.second();
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}
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_LIBCPP_INLINE_VISIBILITY
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void __destruct_at_end(pointer __new_last) _NOEXCEPT
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{__destruct_at_end(__new_last, false_type());}
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_LIBCPP_INLINE_VISIBILITY
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void __destruct_at_end(pointer __new_last, false_type) _NOEXCEPT;
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_LIBCPP_INLINE_VISIBILITY
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void __destruct_at_end(pointer __new_last, true_type) _NOEXCEPT;
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI pointer& __end_cap() _NOEXCEPT { return __end_cap_.first(); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const pointer& __end_cap() const _NOEXCEPT {
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return __end_cap_.first();
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}
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void swap(__split_buffer& __x)
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_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value||
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__is_nothrow_swappable<__alloc_rr>::value);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI iterator begin() _NOEXCEPT { return __begin_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const_iterator begin() const _NOEXCEPT { return __begin_; }
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bool __invariants() const;
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI iterator end() _NOEXCEPT { return __end_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const_iterator end() const _NOEXCEPT { return __end_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void clear() _NOEXCEPT { __destruct_at_end(__begin_); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI size_type size() const {
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return static_cast<size_type>(__end_ - __begin_);
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI bool empty() const { return __end_ == __begin_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI size_type capacity() const {
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return static_cast<size_type>(__end_cap() - __first_);
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI size_type __front_spare() const {
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return static_cast<size_type>(__begin_ - __first_);
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI size_type __back_spare() const {
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return static_cast<size_type>(__end_cap() - __end_);
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI reference front() { return *__begin_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const_reference front() const { return *__begin_; }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI reference back() { return *(__end_ - 1); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI const_reference back() const { return *(__end_ - 1); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void reserve(size_type __n);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void shrink_to_fit() _NOEXCEPT;
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void push_front(const_reference __x);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void push_back(const_reference __x);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void push_front(value_type&& __x);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void push_back(value_type&& __x);
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template <class... _Args>
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void emplace_back(_Args&&... __args);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void pop_front() { __destruct_at_begin(__begin_ + 1); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void pop_back() { __destruct_at_end(__end_ - 1); }
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __construct_at_end(size_type __n);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __construct_at_end(size_type __n, const_reference __x);
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template <class _InputIter>
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
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__enable_if_t<__has_exactly_input_iterator_category<_InputIter>::value>
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__construct_at_end(_InputIter __first, _InputIter __last);
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template <class _ForwardIterator>
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
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__enable_if_t<__has_forward_iterator_category<_ForwardIterator>::value>
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__construct_at_end(_ForwardIterator __first, _ForwardIterator __last);
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template <class _Iterator, class _Sentinel>
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
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void __construct_at_end_with_sentinel(_Iterator __first, _Sentinel __last);
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template <class _Iterator>
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI
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void __construct_at_end_with_size(_Iterator __first, size_type __n);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_begin(pointer __new_begin) {
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__destruct_at_begin(__new_begin, is_trivially_destructible<value_type>());
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_begin(pointer __new_begin, false_type);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_begin(pointer __new_begin, true_type);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_end(pointer __new_last) _NOEXCEPT {
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__destruct_at_end(__new_last, false_type());
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_end(pointer __new_last, false_type) _NOEXCEPT;
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void __destruct_at_end(pointer __new_last, true_type) _NOEXCEPT;
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI void swap(__split_buffer& __x)
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_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || __is_nothrow_swappable<__alloc_rr>::value);
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI bool __invariants() const;
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private:
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_LIBCPP_INLINE_VISIBILITY
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void __move_assign_alloc(__split_buffer& __c, true_type)
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_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
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{
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__alloc() = _VSTD::move(__c.__alloc());
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}
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_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI 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
|
||||
{}
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI 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_;
|
||||
};
|
||||
struct _ConstructTransaction {
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI explicit _ConstructTransaction(
|
||||
pointer* __p, size_type __n) _NOEXCEPT
|
||||
: __pos_(*__p),
|
||||
__end_(*__p + __n),
|
||||
__dest_(__p) {}
|
||||
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI ~_ConstructTransaction() { *__dest_ = __pos_; }
|
||||
|
||||
pointer __pos_;
|
||||
const pointer __end_;
|
||||
|
||||
private:
|
||||
pointer* __dest_;
|
||||
};
|
||||
};
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
bool
|
||||
__split_buffer<_Tp, _Allocator>::__invariants() const
|
||||
{
|
||||
|
|
@ -207,12 +254,13 @@ __split_buffer<_Tp, _Allocator>::__invariants() const
|
|||
// Precondition: size() + __n <= capacity()
|
||||
// Postcondition: size() == size() + __n
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
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_));
|
||||
__alloc_traits::construct(this->__alloc(), _VSTD::__to_address(__tx.__pos_));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -223,26 +271,29 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(size_type __n)
|
|||
// Postcondition: size() == old size() + __n
|
||||
// Postcondition: [i] == __x for all i in [size() - __n, __n)
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
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);
|
||||
_VSTD::__to_address(__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
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20 __enable_if_t<__has_exactly_input_iterator_category<_InputIter>::value>
|
||||
__split_buffer<_Tp, _Allocator>::__construct_at_end(_InputIter __first, _InputIter __last)
|
||||
{
|
||||
__construct_at_end_with_sentinel(__first, __last);
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
template <class _Iterator, class _Sentinel>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void __split_buffer<_Tp, _Allocator>::__construct_at_end_with_sentinel(_Iterator __first, _Sentinel __last) {
|
||||
__alloc_rr& __a = this->__alloc();
|
||||
for (; __first != __last; ++__first)
|
||||
{
|
||||
|
|
@ -251,42 +302,46 @@ __split_buffer<_Tp, _Allocator>::__construct_at_end(_InputIter __first, _InputIt
|
|||
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_)
|
||||
for (pointer __p = __begin_; __p != __end_; ++__p, (void) ++__buf.__end_)
|
||||
__alloc_traits::construct(__buf.__alloc(),
|
||||
_VSTD::__to_raw_pointer(__buf.__end_), _VSTD::move(*__p));
|
||||
_VSTD::__to_address(__buf.__end_), _VSTD::move(*__p));
|
||||
swap(__buf);
|
||||
}
|
||||
__alloc_traits::construct(__a, _VSTD::__to_raw_pointer(this->__end_), *__first);
|
||||
__alloc_traits::construct(__a, _VSTD::__to_address(this->__end_), *__first);
|
||||
++this->__end_;
|
||||
}
|
||||
}
|
||||
template <class _Tp, class _Allocator>
|
||||
template <class _ForwardIterator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20 __enable_if_t<__has_forward_iterator_category<_ForwardIterator>::value>
|
||||
__split_buffer<_Tp, _Allocator>::__construct_at_end(_ForwardIterator __first, _ForwardIterator __last)
|
||||
{
|
||||
__construct_at_end_with_size(__first, std::distance(__first, __last));
|
||||
}
|
||||
|
||||
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) {
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void __split_buffer<_Tp, _Allocator>::__construct_at_end_with_size(_ForwardIterator __first, size_type __n) {
|
||||
_ConstructTransaction __tx(&this->__end_, __n);
|
||||
for (; __tx.__pos_ != __tx.__end_; ++__tx.__pos_, (void) ++__first) {
|
||||
__alloc_traits::construct(this->__alloc(),
|
||||
_VSTD::__to_raw_pointer(__tx.__pos_), *__first);
|
||||
_VSTD::__to_address(__tx.__pos_), *__first);
|
||||
}
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
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_++));
|
||||
__alloc_traits::destroy(__alloc(), _VSTD::__to_address(__begin_++));
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
inline
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, true_type)
|
||||
|
|
@ -295,16 +350,18 @@ __split_buffer<_Tp, _Allocator>::__destruct_at_begin(pointer __new_begin, true_t
|
|||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
inline _LIBCPP_INLINE_VISIBILITY
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
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_));
|
||||
__alloc_traits::destroy(__alloc(), _VSTD::__to_address(--__end_));
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
inline _LIBCPP_INLINE_VISIBILITY
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, true_type) _NOEXCEPT
|
||||
{
|
||||
|
|
@ -312,37 +369,23 @@ __split_buffer<_Tp, _Allocator>::__destruct_at_end(pointer __new_last, true_type
|
|||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__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;
|
||||
if (__cap == 0) {
|
||||
__first_ = nullptr;
|
||||
} else {
|
||||
auto __allocation = std::__allocate_at_least(__alloc(), __cap);
|
||||
__first_ = __allocation.ptr;
|
||||
__cap = __allocation.count;
|
||||
}
|
||||
__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>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__split_buffer<_Tp, _Allocator>::~__split_buffer()
|
||||
{
|
||||
clear();
|
||||
|
|
@ -350,9 +393,8 @@ __split_buffer<_Tp, _Allocator>::~__split_buffer()
|
|||
__alloc_traits::deallocate(__alloc(), __first_, capacity());
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c)
|
||||
_NOEXCEPT_(is_nothrow_move_constructible<allocator_type>::value)
|
||||
: __first_(_VSTD::move(__c.__first_)),
|
||||
|
|
@ -367,8 +409,9 @@ __split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c)
|
|||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c, const __alloc_rr& __a)
|
||||
: __end_cap_(__second_tag(), __a)
|
||||
: __end_cap_(nullptr, __a)
|
||||
{
|
||||
if (__a == __c.__alloc())
|
||||
{
|
||||
|
|
@ -383,16 +426,17 @@ __split_buffer<_Tp, _Allocator>::__split_buffer(__split_buffer&& __c, const __al
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __cap = __c.size();
|
||||
__first_ = __alloc_traits::allocate(__alloc(), __cap);
|
||||
auto __allocation = std::__allocate_at_least(__alloc(), __c.size());
|
||||
__first_ = __allocation.ptr;
|
||||
__begin_ = __end_ = __first_;
|
||||
__end_cap() = __first_ + __cap;
|
||||
__end_cap() = __first_ + __allocation.count;
|
||||
typedef move_iterator<iterator> _Ip;
|
||||
__construct_at_end(_Ip(__c.begin()), _Ip(__c.end()));
|
||||
}
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
__split_buffer<_Tp, _Allocator>&
|
||||
__split_buffer<_Tp, _Allocator>::operator=(__split_buffer&& __c)
|
||||
_NOEXCEPT_((__alloc_traits::propagate_on_container_move_assignment::value &&
|
||||
|
|
@ -412,9 +456,8 @@ __split_buffer<_Tp, _Allocator>::operator=(__split_buffer&& __c)
|
|||
return *this;
|
||||
}
|
||||
|
||||
#endif // _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::swap(__split_buffer& __x)
|
||||
_NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value||
|
||||
|
|
@ -424,10 +467,11 @@ __split_buffer<_Tp, _Allocator>::swap(__split_buffer& __x)
|
|||
_VSTD::swap(__begin_, __x.__begin_);
|
||||
_VSTD::swap(__end_, __x.__end_);
|
||||
_VSTD::swap(__end_cap(), __x.__end_cap());
|
||||
__swap_allocator(__alloc(), __x.__alloc());
|
||||
_VSTD::__swap_allocator(__alloc(), __x.__alloc());
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::reserve(size_type __n)
|
||||
{
|
||||
|
|
@ -444,15 +488,16 @@ __split_buffer<_Tp, _Allocator>::reserve(size_type __n)
|
|||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT
|
||||
{
|
||||
if (capacity() > size())
|
||||
{
|
||||
#ifndef _LIBCPP_NO_EXCEPTIONS
|
||||
#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
|
||||
try
|
||||
{
|
||||
#endif // _LIBCPP_NO_EXCEPTIONS
|
||||
#endif // _LIBCPP_HAS_NO_EXCEPTIONS
|
||||
__split_buffer<value_type, __alloc_rr&> __t(size(), 0, __alloc());
|
||||
__t.__construct_at_end(move_iterator<pointer>(__begin_),
|
||||
move_iterator<pointer>(__end_));
|
||||
|
|
@ -461,16 +506,17 @@ __split_buffer<_Tp, _Allocator>::shrink_to_fit() _NOEXCEPT
|
|||
_VSTD::swap(__begin_, __t.__begin_);
|
||||
_VSTD::swap(__end_, __t.__end_);
|
||||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
#ifndef _LIBCPP_NO_EXCEPTIONS
|
||||
#ifndef _LIBCPP_HAS_NO_EXCEPTIONS
|
||||
}
|
||||
catch (...)
|
||||
{
|
||||
}
|
||||
#endif // _LIBCPP_NO_EXCEPTIONS
|
||||
#endif // _LIBCPP_HAS_NO_EXCEPTIONS
|
||||
}
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::push_front(const_reference __x)
|
||||
{
|
||||
|
|
@ -485,7 +531,7 @@ __split_buffer<_Tp, _Allocator>::push_front(const_reference __x)
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
|
||||
size_type __c = std::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_));
|
||||
|
|
@ -495,13 +541,12 @@ __split_buffer<_Tp, _Allocator>::push_front(const_reference __x)
|
|||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
}
|
||||
}
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1), __x);
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_address(__begin_-1), __x);
|
||||
--__begin_;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::push_front(value_type&& __x)
|
||||
{
|
||||
|
|
@ -516,7 +561,7 @@ __split_buffer<_Tp, _Allocator>::push_front(value_type&& __x)
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
|
||||
size_type __c = std::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_));
|
||||
|
|
@ -526,15 +571,14 @@ __split_buffer<_Tp, _Allocator>::push_front(value_type&& __x)
|
|||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
}
|
||||
}
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__begin_-1),
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_address(__begin_-1),
|
||||
_VSTD::move(__x));
|
||||
--__begin_;
|
||||
}
|
||||
|
||||
#endif // _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
inline _LIBCPP_INLINE_VISIBILITY
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::push_back(const_reference __x)
|
||||
{
|
||||
|
|
@ -549,7 +593,7 @@ __split_buffer<_Tp, _Allocator>::push_back(const_reference __x)
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
|
||||
size_type __c = std::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_));
|
||||
|
|
@ -559,13 +603,12 @@ __split_buffer<_Tp, _Allocator>::push_back(const_reference __x)
|
|||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
}
|
||||
}
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_), __x);
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_address(__end_), __x);
|
||||
++__end_;
|
||||
}
|
||||
|
||||
#ifndef _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::push_back(value_type&& __x)
|
||||
{
|
||||
|
|
@ -580,7 +623,7 @@ __split_buffer<_Tp, _Allocator>::push_back(value_type&& __x)
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
|
||||
size_type __c = std::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_));
|
||||
|
|
@ -590,13 +633,14 @@ __split_buffer<_Tp, _Allocator>::push_back(value_type&& __x)
|
|||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
}
|
||||
}
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_),
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_address(__end_),
|
||||
_VSTD::move(__x));
|
||||
++__end_;
|
||||
}
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
template <class... _Args>
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
void
|
||||
__split_buffer<_Tp, _Allocator>::emplace_back(_Args&&... __args)
|
||||
{
|
||||
|
|
@ -611,7 +655,7 @@ __split_buffer<_Tp, _Allocator>::emplace_back(_Args&&... __args)
|
|||
}
|
||||
else
|
||||
{
|
||||
size_type __c = max<size_type>(2 * static_cast<size_t>(__end_cap() - __first_), 1);
|
||||
size_type __c = std::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_));
|
||||
|
|
@ -621,15 +665,14 @@ __split_buffer<_Tp, _Allocator>::emplace_back(_Args&&... __args)
|
|||
_VSTD::swap(__end_cap(), __t.__end_cap());
|
||||
}
|
||||
}
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_raw_pointer(__end_),
|
||||
__alloc_traits::construct(__alloc(), _VSTD::__to_address(__end_),
|
||||
_VSTD::forward<_Args>(__args)...);
|
||||
++__end_;
|
||||
}
|
||||
|
||||
#endif // _LIBCPP_CXX03_LANG
|
||||
|
||||
template <class _Tp, class _Allocator>
|
||||
inline _LIBCPP_INLINE_VISIBILITY
|
||||
_LIBCPP_CONSTEXPR_SINCE_CXX20
|
||||
inline _LIBCPP_HIDE_FROM_ABI
|
||||
void
|
||||
swap(__split_buffer<_Tp, _Allocator>& __x, __split_buffer<_Tp, _Allocator>& __y)
|
||||
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
|
||||
|
|
@ -641,4 +684,4 @@ _LIBCPP_END_NAMESPACE_STD
|
|||
|
||||
_LIBCPP_POP_MACROS
|
||||
|
||||
#endif // _LIBCPP_SPLIT_BUFFER
|
||||
#endif // _LIBCPP___SPLIT_BUFFER
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue