xref: /freebsd-11-stable/contrib/libstdc++/include/bits/stl_raw_storage_iter.h

// -*- C++ -*-

// Copyright (C) 2001, 2004, 2005 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// 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.
 */

/** @file stl_raw_storage_iter.h
 *  This is an internal header file, included by other library headers.
 *  You should not attempt to use it directly.
 */

#ifndef _STL_RAW_STORAGE_ITERATOR_H
#define _STL_RAW_STORAGE_ITERATOR_H 1

_GLIBCXX_BEGIN_NAMESPACE(std)

  /**
   *  This iterator class lets algorithms store their results into
   *  uninitialized memory.
  */
  template <class _ForwardIterator, class _Tp>
    class raw_storage_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {
    protected:
      _ForwardIterator _M_iter;

    public:
      explicit
      raw_storage_iterator(_ForwardIterator __x)
      : _M_iter(__x) {}

      raw_storage_iterator&
      operator*() { return *this; }

      raw_storage_iterator&
      operator=(const _Tp& __element)
      {
	std::_Construct(&*_M_iter, __element);
	return *this;
      }

      raw_storage_iterator<_ForwardIterator, _Tp>&
      operator++()
      {
	++_M_iter;
	return *this;
      }

      raw_storage_iterator<_ForwardIterator, _Tp>
      operator++(int)
      {
	raw_storage_iterator<_ForwardIterator, _Tp> __tmp = *this;
	++_M_iter;
	return __tmp;
      }
    };

_GLIBCXX_END_NAMESPACE

#endif