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 30 template <class _OutputIterator, class _Tp> 31 class _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 { 38 private: 39 _OutputIterator __x_; 40 public: raw_storage_iterator(_OutputIterator __x)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 base()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