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

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2001, 2004 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 2, 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 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 /*
  31  *
  32  * Copyright (c) 1994
  33  * Hewlett-Packard Company
  34  *
  35  * Permission to use, copy, modify, distribute and sell this software
  36  * and its documentation for any purpose is hereby granted without fee,
  37  * provided that the above copyright notice appear in all copies and
  38  * that both that copyright notice and this permission notice appear
  39  * in supporting documentation.  Hewlett-Packard Company makes no
  40  * representations about the suitability of this software for any
  41  * purpose.  It is provided "as is" without express or implied warranty.
  42  *
  43  *
  44  * Copyright (c) 1996
  45  * Silicon Graphics Computer Systems, Inc.
  46  *
  47  * Permission to use, copy, modify, distribute and sell this software
  48  * and its documentation for any purpose is hereby granted without fee,
  49  * provided that the above copyright notice appear in all copies and
  50  * that both that copyright notice and this permission notice appear
  51  * in supporting documentation.  Silicon Graphics makes no
  52  * representations about the suitability of this software for any
  53  * purpose.  It is provided "as is" without express or implied warranty.
  54  */
  55
  56 /** @file stl_raw_storage_iter.h
  57  *  This is an internal header file, included by other library headers.
  58  *  You should not attempt to use it directly.
  59  */
  60
  61 #ifndef _STL_RAW_STORAGE_ITERATOR_H
  62 #define _STL_RAW_STORAGE_ITERATOR_H 1
  63
  64 namespace std
  65 {
  66   /**
  67    *  This iterator class lets algorithms store their results into
  68    *  uninitialized memory.
  69   */
  70   template <class _ForwardIterator, class _Tp>
  71     class raw_storage_iterator
  72     : public iterator<output_iterator_tag, void, void, void, void>
  73     {
  74     protected:
  75       _ForwardIterator _M_iter;
  76
  77     public:
  78       explicit
  79       raw_storage_iterator(_ForwardIterator __x)
  80       : _M_iter(__x) {}
  81
  82       raw_storage_iterator&
  83       operator*() { return *this; }
  84
  85       raw_storage_iterator&
  86       operator=(const _Tp& __element)
  87       {
  88         std::_Construct(&*_M_iter, __element);
  89         return *this;
  90       }
  91
  92       raw_storage_iterator<_ForwardIterator, _Tp>&
  93       operator++()
  94       {
  95         ++_M_iter;
  96         return *this;
  97       }
  98
  99       raw_storage_iterator<_ForwardIterator, _Tp>
 100       operator++(int)
 101       {
 102         raw_storage_iterator<_ForwardIterator, _Tp> __tmp = *this;
 103         ++_M_iter;
 104         return __tmp;
 105       }
 106     };
 107 } // namespace std
 108
 109 #endif
 110
 111 // Local Variables:
 112 // mode:C++
 113 // End: