release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/include/c++/4.5.3/ext/pb_ds/detail/splay_tree_/node.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the terms
   7 // of the GNU General Public License as published by the Free Software
   8 // Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // This library is distributed in the hope that it will be useful, but
  12 // WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  26
  27 // Permission to use, copy, modify, sell, and distribute this software
  28 // is hereby granted without fee, provided that the above copyright
  29 // notice appears in all copies, and that both that copyright notice
  30 // and this permission notice appear in supporting documentation. None
  31 // of the above authors, nor IBM Haifa Research Laboratories, make any
  32 // representation about the suitability of this software for any
  33 // purpose. It is provided "as is" without express or implied
  34 // warranty.
  35
  36 /**
  37  * @file node.hpp
  38  * Contains an implementation struct for splay_tree_'s node.
  39  */
  40
  41 #ifndef PB_DS_SPLAY_TREE_NODE_HPP
  42 #define PB_DS_SPLAY_TREE_NODE_HPP
  43
  44 namespace __gnu_pbds
  45 {
  46   namespace detail
  47   {
  48     template<typename Value_Type, class Metadata, class Allocator>
  49     struct splay_tree_node_
  50     {
  51     public:
  52       typedef Value_Type value_type;
  53       typedef Metadata metadata_type;
  54
  55       typedef
  56       typename Allocator::template rebind<
  57       splay_tree_node_<Value_Type, Metadata, Allocator> >::other::pointer
  58       node_pointer;
  59
  60       typedef
  61       typename Allocator::template rebind<metadata_type>::other::reference
  62       metadata_reference;
  63
  64       typedef
  65       typename Allocator::template rebind<metadata_type>::other::const_reference
  66       const_metadata_reference;
  67
  68 #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
  69       void
  70       trace() const
  71       { std::cout << PB_DS_V2F(m_value) << "(" << m_metadata << ")"; }
  72 #endif
  73
  74       inline bool
  75       special() const
  76       { return m_special; }
  77
  78       inline const_metadata_reference
  79       get_metadata() const
  80       { return m_metadata; }
  81
  82       inline metadata_reference
  83       get_metadata()
  84       { return m_metadata; }
  85
  86       value_type m_value;
  87       bool m_special;
  88       node_pointer m_p_left;
  89       node_pointer m_p_right;
  90       node_pointer m_p_parent;
  91       metadata_type m_metadata;
  92     };
  93
  94     template<typename Value_Type, typename Allocator>
  95     struct splay_tree_node_<Value_Type, null_node_metadata, Allocator>
  96     {
  97     public:
  98       typedef Value_Type value_type;
  99       typedef null_node_metadata metadata_type;
 100
 101       typedef
 102       typename Allocator::template rebind<
 103       splay_tree_node_<Value_Type, null_node_metadata, Allocator> >::other::pointer
 104       node_pointer;
 105
 106       inline bool
 107       special() const
 108       { return m_special; }
 109
 110 #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_
 111       void
 112       trace() const
 113       { std::cout << PB_DS_V2F(m_value); }
 114 #endif
 115
 116       node_pointer m_p_left;
 117       node_pointer m_p_right;
 118       node_pointer m_p_parent;
 119       value_type m_value;
 120       bool m_special;
 121     };
 122   } // namespace detail
 123 } // namespace __gnu_pbds
 124
 125 #endif