memory

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// Memory extensions -*- C++ -*-

// Copyright (C) 2002 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

/*
 *
 * Copyright (c) 1994
 * Hewlett-Packard Company
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Hewlett-Packard Company makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 *
 * Copyright (c) 1996
 * Silicon Graphics Computer Systems, Inc.
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Silicon Graphics makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 */

#ifndef _EXT_MEMORY
#define _EXT_MEMORY 1

#pragma GCC system_header

#include <memory>
#include <bits/stl_tempbuf.h>

namespace __gnu_cxx
{
  using std::ptrdiff_t;
  using std::pair;
  using std::__iterator_category;
  using std::_Temporary_buffer;

  template<typename _InputIter, typename _Size, typename _ForwardIter>
    pair<_InputIter, _ForwardIter>
    __uninitialized_copy_n(_InputIter __first, _Size __count,
               _ForwardIter __result, std::input_iterator_tag)
    {
      _ForwardIter __cur = __result;
      try
    {
      for ( ; __count > 0 ; --__count, ++__first, ++__cur)
        std::_Construct(&*__cur, *__first);
      return pair<_InputIter, _ForwardIter>(__first, __cur);
    }
      catch(...)
    {
      std::_Destroy(__result, __cur);
      __throw_exception_again;
    }
    }

  template<typename _RandomAccessIter, typename _Size, typename _ForwardIter>
    inline pair<_RandomAccessIter, _ForwardIter>
    __uninitialized_copy_n(_RandomAccessIter __first, _Size __count,
               _ForwardIter __result,
               std::random_access_iterator_tag)
    {
      _RandomAccessIter __last = __first + __count;
      return pair<_RandomAccessIter, _ForwardIter>(
             __last,
             std::uninitialized_copy(__first, __last, __result));
    }

  template<typename _InputIter, typename _Size, typename _ForwardIter>
    inline pair<_InputIter, _ForwardIter>
    __uninitialized_copy_n(_InputIter __first, _Size __count,
             _ForwardIter __result)
    {
      return __uninitialized_copy_n(__first, __count, __result,
                    __iterator_category(__first));
    }

  template<typename _InputIter, typename _Size, typename _ForwardIter>
    inline pair<_InputIter, _ForwardIter>
    uninitialized_copy_n(_InputIter __first, _Size __count,
             _ForwardIter __result)
    {
      return __uninitialized_copy_n(__first, __count, __result,
                    __iterator_category(__first));
    }


  template <class _ForwardIterator, class _Tp
          = typename std::iterator_traits<_ForwardIterator>::value_type >
  struct temporary_buffer : public _Temporary_buffer<_ForwardIterator, _Tp>
  {
    temporary_buffer(_ForwardIterator __first, _ForwardIterator __last)
    : _Temporary_buffer<_ForwardIterator, _Tp>(__first, __last) { }

    ~temporary_buffer() { }
  };
} // namespace __gnu_cxx

#endif

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