1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License 17 // along with this library; see the file COPYING. If not, write to 18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19 // MA 02111-1307, USA. 20 21 // As a special exception, you may use this file as part of a free 22 // software library without restriction. Specifically, if other files 23 // instantiate templates or use macros or inline functions from this 24 // file, or you compile this file and link it with other files to 25 // produce an executable, this file does not by itself cause the 26 // resulting executable to be covered by the GNU General Public 27 // License. This exception does not however invalidate any other 28 // reasons why the executable file might be covered by the GNU General 29 // Public License. 30 31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33 // Permission to use, copy, modify, sell, and distribute this software 34 // is hereby granted without fee, provided that the above copyright 35 // notice appears in all copies, and that both that copyright notice 36 // and this permission notice appear in supporting documentation. None 37 // of the above authors, nor IBM Haifa Research Laboratories, make any 38 // representation about the suitability of this software for any 39 // purpose. It is provided "as is" without express or implied 40 // warranty. 41 42 /** 43 * @file node.hpp 44 * Contains an implementation struct for splay_tree_'s node. 45 */ 46 47 #ifndef PB_DS_SPLAY_TREE_NODE_HPP 48 #define PB_DS_SPLAY_TREE_NODE_HPP 49 50 namespace pb_ds 51 { 52 namespace detail 53 { 54 template<typename Value_Type, class Metadata, class Allocator> 55 struct splay_tree_node_ 56 { 57 public: 58 typedef Value_Type value_type; 59 typedef Metadata metadata_type; 60 61 typedef 62 typename Allocator::template rebind< 63 splay_tree_node_<Value_Type, Metadata, Allocator> >::other::pointer 64 node_pointer; 65 66 typedef 67 typename Allocator::template rebind<metadata_type>::other::reference 68 metadata_reference; 69 70 typedef 71 typename Allocator::template rebind<metadata_type>::other::const_reference 72 const_metadata_reference; 73 74 #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ 75 void tracepb_ds::detail::splay_tree_node_76 trace() const 77 { std::cout << PB_DS_V2F(m_value) << "(" << m_metadata << ")"; } 78 #endif 79 80 inline bool specialpb_ds::detail::splay_tree_node_81 special() const 82 { return m_special; } 83 84 inline const_metadata_reference get_metadatapb_ds::detail::splay_tree_node_85 get_metadata() const 86 { return m_metadata; } 87 88 inline metadata_reference get_metadatapb_ds::detail::splay_tree_node_89 get_metadata() 90 { return m_metadata; } 91 92 value_type m_value; 93 bool m_special; 94 node_pointer m_p_left; 95 node_pointer m_p_right; 96 node_pointer m_p_parent; 97 metadata_type m_metadata; 98 }; 99 100 template<typename Value_Type, typename Allocator> 101 struct splay_tree_node_<Value_Type, null_node_metadata, Allocator> 102 { 103 public: 104 typedef Value_Type value_type; 105 typedef null_node_metadata metadata_type; 106 107 typedef 108 typename Allocator::template rebind< 109 splay_tree_node_<Value_Type, null_node_metadata, Allocator> >::other::pointer 110 node_pointer; 111 112 inline bool specialpb_ds::detail::splay_tree_node_113 special() const 114 { return m_special; } 115 116 #ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ 117 void tracepb_ds::detail::splay_tree_node_118 trace() const 119 { std::cout << PB_DS_V2F(m_value); } 120 #endif 121 122 node_pointer m_p_left; 123 node_pointer m_p_right; 124 node_pointer m_p_parent; 125 value_type m_value; 126 bool m_special; 127 }; 128 } // namespace detail 129 } // namespace pb_ds 130 131 #endif 132