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     ]ˆÏÐƒt.³ÂÒ     ]// Memory extensions -*- C++ -*-

// Copyright (C) 2002-2021 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 3, 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/*
 *
 * 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.
 */

/** @file ext/memory
 *  This file is a GNU extension to the Standard C++ Library (possibly
 *  containing extensions from the HP/SGI STL subset).
 */

#ifndef _EXT_MEMORY
#define _EXT_MEMORY 1

#pragma GCC system_header

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

namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

  using std::_Temporary_buffer;

  template<typename _InputIter, typename _Size, typename _ForwardIter>
    std::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 std::pair<_InputIter, _ForwardIter>(__first, __cur);
	}
      __catch(...)
	{
	  std::_Destroy(__result, __cur);
	  __throw_exception_again;
	}
    }

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

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

  /**
   *  @brief Copies the range [first,last) into result.
   *  @param  __first  An input iterator.
   *  @param  __count  Length
   *  @param  __result An