Subversion Repositories altor32

// -*- C++ -*-

// Copyright (C) 2005, 2006, 2009, 2010 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) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software

// is hereby granted without fee, provided that the above copyright

// notice appears in all copies, and that both that copyright notice

// and this permission notice appear in supporting documentation. None

// of the above authors, nor IBM Haifa Research Laboratories, make any

// representation about the suitability of this software for any

// purpose. It is provided "as is" without express or implied

// warranty.

/**

 * @file left_child_next_sibling_heap_/point_const_iterator.hpp

 * Contains an iterator class returned by the table's const find and insert

 * methods.

 */

#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP

#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_CONST_FIND_ITERATOR_HPP

#include <ext/pb_ds/tag_and_trait.hpp>

#include <debug/debug.h>

namespace __gnu_pbds

{

  namespace detail

  {

#define PB_DS_CLASS_T_DEC                       \

    template<typename Node, typename _Alloc>

#define PB_DS_CLASS_C_DEC \

    left_child_next_sibling_heap_node_point_const_iterator_<Node, _Alloc>

    /// Const point-type iterator.

    template<typename Node, typename _Alloc>

    class left_child_next_sibling_heap_node_point_const_iterator_

    {

    protected:

      typedef typename _Alloc::template rebind<Node>::other::pointer node_pointer;

    public:

      /// Category.

      typedef trivial_iterator_tag iterator_category;

      /// Difference type.

      typedef trivial_iterator_difference_type difference_type;

      /// Iterator's value type.

      typedef typename Node::value_type value_type;

      /// Iterator's pointer type.

      typedef

      typename _Alloc::template rebind<

        value_type>::other::pointer

      pointer;

      /// Iterator's const pointer type.

      typedef

      typename _Alloc::template rebind<

        value_type>::other::const_pointer

      const_pointer;

      /// Iterator's reference type.

      typedef

      typename _Alloc::template rebind<

        value_type>::other::reference

      reference;

      /// Iterator's const reference type.

      typedef

      typename _Alloc::template rebind<

        value_type>::other::const_reference

      const_reference;

      inline

      left_child_next_sibling_heap_node_point_const_iterator_(node_pointer p_nd) : m_p_nd(p_nd)

      { }

      /// Default constructor.

      inline

      left_child_next_sibling_heap_node_point_const_iterator_() : m_p_nd(0)

      { }

      /// Copy constructor.

      inline

      left_child_next_sibling_heap_node_point_const_iterator_(const PB_DS_CLASS_C_DEC& other) : m_p_nd(other.m_p_nd)

      { }

      /// Access.

      const_pointer

      operator->() const

      {

        _GLIBCXX_DEBUG_ASSERT(m_p_nd != 0);

        return &m_p_nd->m_value;

      }

      /// Access.

      const_reference

      operator*() const

      {

        _GLIBCXX_DEBUG_ASSERT(m_p_nd != 0);

        return m_p_nd->m_value;

      }

      /// Compares content to a different iterator object.

      bool

      operator==(const PB_DS_CLASS_C_DEC& other) const

      { return m_p_nd == other.m_p_nd; }

      /// Compares content (negatively) to a different iterator object.

      bool

      operator!=(const PB_DS_CLASS_C_DEC& other) const

      { return m_p_nd != other.m_p_nd; }

      node_pointer m_p_nd;

    };

#undef PB_DS_CLASS_T_DEC

#undef PB_DS_CLASS_C_DEC

  } // namespace detail

} // namespace __gnu_pbds

#endif