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 template <class _OutputIterator, class _Tp>
29 class _LIBCPP_TEMPLATE_VIS raw_storage_iterator
30     : public iterator<output_iterator_tag,
31                       _Tp,                                         // purposefully not C++03
32                       ptrdiff_t,                                   // purposefully not C++03
33                       _Tp*,                                        // purposefully not C++03
34                       raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03
35 {
36 private:
37     _OutputIterator __x_;
38 public:
39     _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
40     _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
41     _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
42         {::new ((void*)_VSTD::addressof(*__x_)) _Tp(__element); return *this;}
43 #if _LIBCPP_STD_VER >= 14
44     _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(_Tp&& __element)
45         {::new ((void*)_VSTD::addressof(*__x_)) _Tp(_VSTD::move(__element)); return *this;}
46 #endif
47     _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
48     _LIBCPP_INLINE_VISIBILITY raw_storage_iterator  operator++(int)
49         {raw_storage_iterator __t(*this); ++__x_; return __t;}
50 #if _LIBCPP_STD_VER >= 14
51     _LIBCPP_INLINE_VISIBILITY _OutputIterator base() const { return __x_; }
52 #endif
53 };
54 
55 _LIBCPP_END_NAMESPACE_STD
56 
57 _LIBCPP_POP_MACROS
58 
59 #endif // _LIBCPP___MEMORY_RAW_STORAGE_ITERATOR_H
60