1 // -*- C++ -*-
2 
3 // Copyright (C) 2001-2018 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /*
26  *
27  * Copyright (c) 1994
28  * Hewlett-Packard Company
29  *
30  * Permission to use, copy, modify, distribute and sell this software
31  * and its documentation for any purpose is hereby granted without fee,
32  * provided that the above copyright notice appear in all copies and
33  * that both that copyright notice and this permission notice appear
34  * in supporting documentation.  Hewlett-Packard Company makes no
35  * representations about the suitability of this software for any
36  * purpose.  It is provided "as is" without express or implied warranty.
37  *
38  *
39  * Copyright (c) 1996
40  * Silicon Graphics Computer Systems, Inc.
41  *
42  * Permission to use, copy, modify, distribute and sell this software
43  * and its documentation for any purpose is hereby granted without fee,
44  * provided that the above copyright notice appear in all copies and
45  * that both that copyright notice and this permission notice appear
46  * in supporting documentation.  Silicon Graphics makes no
47  * representations about the suitability of this software for any
48  * purpose.  It is provided "as is" without express or implied warranty.
49  */
50 
51 /** @file bits/stl_raw_storage_iter.h
52  *  This is an internal header file, included by other library headers.
53  *  Do not attempt to use it directly. @headername{memory}
54  */
55 
56 #ifndef _STL_RAW_STORAGE_ITERATOR_H
57 #define _STL_RAW_STORAGE_ITERATOR_H 1
58 
59 namespace std _GLIBCXX_VISIBILITY(default)
60 {
61 _GLIBCXX_BEGIN_NAMESPACE_VERSION
62 
63   /**
64    *  This iterator class lets algorithms store their results into
65    *  uninitialized memory.
66   */
67   template <class _OutputIterator, class _Tp>
68     class raw_storage_iterator
69     : public iterator<output_iterator_tag, void, void, void, void>
70     {
71     protected:
72       _OutputIterator _M_iter;
73 
74     public:
75       explicit
76       raw_storage_iterator(_OutputIterator __x)
77       : _M_iter(__x) {}
78 
79       raw_storage_iterator&
80       operator*() { return *this; }
81 
82       raw_storage_iterator&
83       operator=(const _Tp& __element)
84       {
85 	std::_Construct(std::__addressof(*_M_iter), __element);
86 	return *this;
87       }
88 
89 #if __cplusplus >= 201103L
90       // _GLIBCXX_RESOLVE_LIB_DEFECTS
91       // 2127. Move-construction with raw_storage_iterator
92       raw_storage_iterator&
93       operator=(_Tp&& __element)
94       {
95 	std::_Construct(std::__addressof(*_M_iter), std::move(__element));
96 	return *this;
97       }
98 #endif
99 
100       raw_storage_iterator&
101       operator++()
102       {
103 	++_M_iter;
104 	return *this;
105       }
106 
107       raw_storage_iterator
108       operator++(int)
109       {
110 	raw_storage_iterator __tmp = *this;
111 	++_M_iter;
112 	return __tmp;
113       }
114 
115       // _GLIBCXX_RESOLVE_LIB_DEFECTS
116       // 2454. Add raw_storage_iterator::base() member
117       _OutputIterator base() const { return _M_iter; }
118     };
119 
120 _GLIBCXX_END_NAMESPACE_VERSION
121 } // namespace
122 
123 #endif
124