libstdc++

stl_raw_storage_iter.h
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1 // -*- C++ -*-
2
3 // Copyright (C) 2001-2013 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 raw_storage_iterator<_OutputIterator, _Tp>&
90 operator++()
91 {
92 ++_M_iter;
93 return *this;
94 }
95
96 raw_storage_iterator<_OutputIterator, _Tp>
97 operator++(int)
98 {
99 raw_storage_iterator<_OutputIterator, _Tp> __tmp = *this;
100 ++_M_iter;
101 return __tmp;
102 }
103 };
104
105 _GLIBCXX_END_NAMESPACE_VERSION
106 } // namespace
107
108 #endif