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-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
11#define _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
12
13#include <__config>
14#include <__memory/addressof.h>
15#include <cstddef>
16#include <iterator>
17#include <utility>
18
19#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
20#pragma GCC system_header
21#endif
22
23_LIBCPP_PUSH_MACROS
24#include <__undef_macros>
25
26_LIBCPP_BEGIN_NAMESPACE_STD
27
28#if _LIBCPP_STD_VER <= 17
29
30template <class _OutputIterator, class _Tp>
31class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 raw_storage_iterator
32    : public iterator<output_iterator_tag,
33                      _Tp,                                         // purposefully not C++03
34                      ptrdiff_t,                                   // purposefully not C++03
35                      _Tp*,                                        // purposefully not C++03
36                      raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03
37{
38private:
39    _OutputIterator __x_;
40public:
41    _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
42    _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
43    _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
44        {::new ((void*)_VSTD::addressof(*__x_)) _Tp(__element); return *this;}
45#if _LIBCPP_STD_VER >= 14
46    _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(_Tp&& __element)
47        {::new ((void*)_VSTD::addressof(*__x_)) _Tp(_VSTD::move(__element)); return *this;}
48#endif
49    _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
50    _LIBCPP_INLINE_VISIBILITY raw_storage_iterator  operator++(int)
51        {raw_storage_iterator __t(*this); ++__x_; return __t;}
52#if _LIBCPP_STD_VER >= 14
53    _LIBCPP_INLINE_VISIBILITY _OutputIterator base() const { return __x_; }
54#endif
55};
56
57#endif // _LIBCPP_STD_VER <= 17
58
59_LIBCPP_END_NAMESPACE_STD
60
61_LIBCPP_POP_MACROS
62
63#endif // _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
64