2 //===----------------------------------------------------------------------===//
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
8 //===----------------------------------------------------------------------===//
10 #ifndef _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
11 #define _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
14 #include <__iterator/iterator.h>
15 #include <__iterator/iterator_traits.h>
16 #include <__memory/addressof.h>
17 #include <__utility/move.h>
20 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
21 # pragma GCC system_header
24 _LIBCPP_BEGIN_NAMESPACE_STD
26 #if _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR)
28 _LIBCPP_SUPPRESS_DEPRECATED_PUSH
29 template <class _OutputIterator, class _Tp>
30 class _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 raw_storage_iterator
31 #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES)
32 : public iterator<output_iterator_tag, void, void, void, void>
35 _LIBCPP_SUPPRESS_DEPRECATED_POP
39 typedef output_iterator_tag iterator_category;
40 typedef void value_type;
41 #if _LIBCPP_STD_VER > 17
42 typedef ptrdiff_t difference_type;
44 typedef void difference_type;
47 typedef void reference;
49 _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
50 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
51 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
52 {::new ((void*)_VSTD::addressof(*__x_)) _Tp(__element); return *this;}
53 #if _LIBCPP_STD_VER >= 14
54 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(_Tp&& __element)
55 {::new ((void*)_VSTD::addressof(*__x_)) _Tp(_VSTD::move(__element)); return *this;}
57 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
58 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator operator++(int)
59 {raw_storage_iterator __t(*this); ++__x_; return __t;}
60 #if _LIBCPP_STD_VER >= 14
61 _LIBCPP_INLINE_VISIBILITY _OutputIterator base() const { return __x_; }
65 #endif // _LIBCPP_STD_VER <= 17 || defined(_LIBCPP_ENABLE_CXX20_REMOVED_RAW_STORAGE_ITERATOR)
67 _LIBCPP_END_NAMESPACE_STD
69 #endif // _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H