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 50namespace 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 76 trace() const 77 { std::cout << PB_DS_V2F(m_value) << "(" << m_metadata << ")"; } 78#endif 79 80 inline bool 81 special() const 82 { return m_special; } 83 84 inline const_metadata_reference 85 get_metadata() const 86 { return m_metadata; } 87 88 inline metadata_reference 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 113 special() const 114 { return m_special; } 115 116#ifdef PB_DS_BIN_SEARCH_TREE_TRACE_ 117 void 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