libstdc++-v3/include/bits/stl_raw_storage_iter.h

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 /*
  27  *
  28  * Copyright (c) 1994
  29  * Hewlett-Packard Company
  30  *
  31  * Permission to use, copy, modify, distribute and sell this software
  32  * and its documentation for any purpose is hereby granted without fee,
  33  * provided that the above copyright notice appear in all copies and
  34  * that both that copyright notice and this permission notice appear
  35  * in supporting documentation.  Hewlett-Packard Company makes no
  36  * representations about the suitability of this software for any
  37  * purpose.  It is provided "as is" without express or implied warranty.
  38  *
  39  *
  40  * Copyright (c) 1996
  41  * Silicon Graphics Computer Systems, Inc.
  42  *
  43  * Permission to use, copy, modify, distribute and sell this software
  44  * and its documentation for any purpose is hereby granted without fee,
  45  * provided that the above copyright notice appear in all copies and
  46  * that both that copyright notice and this permission notice appear
  47  * in supporting documentation.  Silicon Graphics makes no
  48  * representations about the suitability of this software for any
  49  * purpose.  It is provided "as is" without express or implied warranty.
  50  */
  51
  52 /** @file bits/stl_raw_storage_iter.h
  53  *  This is an internal header file, included by other library headers.
  54  *  Do not attempt to use it directly. @headername{memory}
  55  */
  56
  57 #ifndef _STL_RAW_STORAGE_ITERATOR_H
  58 #define _STL_RAW_STORAGE_ITERATOR_H 1
  59
  60 namespace std _GLIBCXX_VISIBILITY(default)
  61 {
  62 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  63
  64   /**
  65    *  This iterator class lets algorithms store their results into
  66    *  uninitialized memory.
  67   */
  68   template <class _OutputIterator, class _Tp>
  69     class raw_storage_iterator
  70     : public iterator<output_iterator_tag, void, void, void, void>
  71     {
  72     protected:
  73       _OutputIterator _M_iter;
  74
  75     public:
  76       explicit
  77       raw_storage_iterator(_OutputIterator __x)
  78       : _M_iter(__x) {}
  79
  80       raw_storage_iterator&
  81       operator*() { return *this; }
  82
  83       raw_storage_iterator&
  84       operator=(const _Tp& __element)
  85       {
  86         std::_Construct(std::__addressof(*_M_iter), __element);
  87         return *this;
  88       }
  89
  90       raw_storage_iterator<_OutputIterator, _Tp>&
  91       operator++()
  92       {
  93         ++_M_iter;
  94         return *this;
  95       }
  96
  97       raw_storage_iterator<_OutputIterator, _Tp>
  98       operator++(int)
  99       {
 100         raw_storage_iterator<_OutputIterator, _Tp> __tmp = *this;
 101         ++_M_iter;
 102         return __tmp;
 103       }
 104     };
 105
 106 _GLIBCXX_END_NAMESPACE_VERSION
 107 } // namespace
 108
 109 #endif