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 stl_raw_storage_iter.h
  53  *  This is an internal header file, included by other library headers.
  54  *  You should not attempt to use it directly.
  55  */
  56
  57 #ifndef _STL_RAW_STORAGE_ITERATOR_H
  58 #define _STL_RAW_STORAGE_ITERATOR_H 1
  59
  60 _GLIBCXX_BEGIN_NAMESPACE(std)
  61
  62   /**
  63    *  This iterator class lets algorithms store their results into
  64    *  uninitialized memory.
  65   */
  66   template <class _OutputIterator, class _Tp>
  67     class raw_storage_iterator
  68     : public iterator<output_iterator_tag, void, void, void, void>
  69     {
  70     protected:
  71       _OutputIterator _M_iter;
  72
  73     public:
  74       explicit
  75       raw_storage_iterator(_OutputIterator __x)
  76       : _M_iter(__x) {}
  77
  78       raw_storage_iterator&
  79       operator*() { return *this; }
  80
  81       raw_storage_iterator&
  82       operator=(const _Tp& __element)
  83       {
  84         std::_Construct(std::__addressof(*_M_iter), __element);
  85         return *this;
  86       }
  87
  88       raw_storage_iterator<_OutputIterator, _Tp>&
  89       operator++()
  90       {
  91         ++_M_iter;
  92         return *this;
  93       }
  94
  95       raw_storage_iterator<_OutputIterator, _Tp>
  96       operator++(int)
  97       {
  98         raw_storage_iterator<_OutputIterator, _Tp> __tmp = *this;
  99         ++_M_iter;
 100         return __tmp;
 101       }
 102     };
 103
 104 _GLIBCXX_END_NAMESPACE
 105
 106 #endif