view generator/parser/rpp/pp-iterator.h @ 1:e78566595089

initial import
author mandel
date Mon, 11 May 2009 16:01:50 +0000
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/****************************************************************************
**
** Copyright (C) 1992-2008 Nokia. All rights reserved.
** Copyright 2005 Roberto Raggi <roberto@kdevelop.org>
**
** This file is part of Qt Jambi.
**
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* accordance with the Qt Commercial License Agreement provided with the
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* GNU General Public License Usage
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* the packaging of this file.  Please review the following information
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* the file GPL_EXCEPTION.txt in this package.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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****************************************************************************/

#ifndef PP_ITERATOR_H
#define PP_ITERATOR_H

#include <iterator>

namespace rpp {

class pp_null_output_iterator
  : public std::iterator<std::output_iterator_tag, void, void, void, void>
{
public:
  pp_null_output_iterator() {}

  template <typename _Tp>
  pp_null_output_iterator &operator=(_Tp const &)
  { return *this; }

  inline pp_null_output_iterator &operator * () { return *this; }
  inline pp_null_output_iterator &operator ++ () { return *this; }
  inline pp_null_output_iterator operator ++ (int) { return *this; }
};

template <typename _Container>
class pp_output_iterator
  : public std::iterator<std::output_iterator_tag, void, void, void, void>
{
  std::string &_M_result;

public:
  explicit pp_output_iterator(std::string &__result):
    _M_result (__result) {}

  inline pp_output_iterator &operator=(typename _Container::const_reference __v)
  {
    if (_M_result.capacity () == _M_result.size ())
      _M_result.reserve (_M_result.capacity () << 2);

    _M_result.push_back(__v);
    return *this;
  }

  inline pp_output_iterator &operator * () { return *this; }
  inline pp_output_iterator &operator ++ () { return *this; }
  inline pp_output_iterator operator ++ (int) { return *this; }
};

} // namespace rpp

#endif // PP_ITERATOR_H

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