Subversion Repositories openrisc

// -*- C++ -*-

// Copyright (C) 2005, 2006, 2009 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 node_base.hpp

 * Contains a pat_trie_node_base base for a patricia tree.

 */

#ifndef PB_DS_PAT_TRIE_NODE_BASE_HPP

#define PB_DS_PAT_TRIE_NODE_BASE_HPP

#include <ext/pb_ds/detail/pat_trie_/node_metadata_base.hpp>

namespace __gnu_pbds

{

  namespace detail

  {

#define PB_DS_CLASS_T_DEC \

    template<typename Type_Traits, typename E_Access_Traits,    \

             typename Metadata, typename Allocator>

#define PB_DS_CLASS_C_DEC \

    pat_trie_node_base<Type_Traits, E_Access_Traits, Metadata, Allocator>

#define PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC \

    pat_trie_subtree_debug_info<Type_Traits, E_Access_Traits, Allocator>

    enum pat_trie_node_type

      {

        pat_trie_internal_node_type,

        pat_trie_leaf_node_type,

        pat_trie_head_node_type

      };

    template<typename Type_Traits,

             typename E_Access_Traits,

             typename Metadata,

             typename Allocator>

    struct pat_trie_node_base : public pat_trie_node_metadata_base<

      Metadata,

      Allocator>

    {

    public:

      typedef

      typename Allocator::template rebind<

      pat_trie_node_base>::other::pointer

      node_pointer;

      typedef

      typename Allocator::template rebind<

        E_Access_Traits>::other::const_pointer

      const_e_access_traits_pointer;

#ifdef _GLIBCXX_DEBUG

      typedef

      std::pair<

        typename E_Access_Traits::const_iterator,

        typename E_Access_Traits::const_iterator>

      subtree_debug_info;

#endif 

      pat_trie_node_base(pat_trie_node_type type);

#ifdef _GLIBCXX_DEBUG

      void

      assert_valid(const_e_access_traits_pointer p_traits) const;

      virtual subtree_debug_info

      assert_valid_imp(const_e_access_traits_pointer p_traits) const = 0;

#endif 

      node_pointer m_p_parent;

      const pat_trie_node_type m_type;

    };

    PB_DS_CLASS_T_DEC

    PB_DS_CLASS_C_DEC::

    pat_trie_node_base(pat_trie_node_type type) : m_type(type)

    { }

#ifdef _GLIBCXX_DEBUG

    PB_DS_CLASS_T_DEC

    void

    PB_DS_CLASS_C_DEC::

    assert_valid(const_e_access_traits_pointer p_traits) const

    { assert_valid_imp(p_traits); }

#endif 

#undef PB_DS_CLASS_T_DEC

#undef PB_DS_CLASS_C_DEC

#undef PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC

  } // namespace detail

} // namespace __gnu_pbds

#endif