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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H11#define _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H12 13#include <__config>14#include <__cstddef/ptrdiff_t.h>15#include <__iterator/iterator.h>16#include <__iterator/iterator_traits.h>17#include <__memory/addressof.h>18#include <__utility/move.h>19 20#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)21# pragma GCC system_header22#endif23 24_LIBCPP_PUSH_MACROS25#include <__undef_macros>26 27_LIBCPP_BEGIN_NAMESPACE_STD28 29#if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR)30 31template <class _OutputIterator, class _Tp>32class _LIBCPP_DEPRECATED_IN_CXX17 raw_storage_iterator33 : public __iterator_base<raw_storage_iterator<_OutputIterator, _Tp>, output_iterator_tag, void, void, void, void> {34private:35 _OutputIterator __x_;36 37public:38 typedef output_iterator_tag iterator_category;39 typedef void value_type;40# if _LIBCPP_STD_VER >= 2041 typedef ptrdiff_t difference_type;42# else43 typedef void difference_type;44# endif45 typedef void pointer;46 typedef void reference;47 48 _LIBCPP_HIDE_FROM_ABI explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}49 _LIBCPP_HIDE_FROM_ABI raw_storage_iterator& operator*() { return *this; }50 _LIBCPP_HIDE_FROM_ABI raw_storage_iterator& operator=(const _Tp& __element) {51 ::new ((void*)std::addressof(*__x_)) _Tp(__element);52 return *this;53 }54# if _LIBCPP_STD_VER >= 1455 _LIBCPP_HIDE_FROM_ABI raw_storage_iterator& operator=(_Tp&& __element) {56 ::new ((void*)std::addressof(*__x_)) _Tp(std::move(__element));57 return *this;58 }59# endif60 _LIBCPP_HIDE_FROM_ABI raw_storage_iterator& operator++() {61 ++__x_;62 return *this;63 }64 _LIBCPP_HIDE_FROM_ABI raw_storage_iterator operator++(int) {65 raw_storage_iterator __t(*this);66 ++__x_;67 return __t;68 }69# if _LIBCPP_STD_VER >= 1470 _LIBCPP_HIDE_FROM_ABI _OutputIterator base() const { return __x_; }71# endif72};73 74#endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR)75 76_LIBCPP_END_NAMESPACE_STD77 78_LIBCPP_POP_MACROS79 80#endif // _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H81