1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2013 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 bin_search_tree_/traits.hpp 38 * Contains an implementation for bin_search_tree_. 39 */ 40 41 #ifndef PB_DS_BIN_SEARCH_TREE_NODE_AND_IT_TRAITS_HPP 42 #define PB_DS_BIN_SEARCH_TREE_NODE_AND_IT_TRAITS_HPP 43 44 #include <ext/pb_ds/detail/bin_search_tree_/point_iterators.hpp> 45 #include <ext/pb_ds/detail/bin_search_tree_/node_iterators.hpp> 46 47 namespace __gnu_pbds 48 { 49 namespace detail 50 { 51 /// Binary search tree traits, primary template 52 /// @ingroup traits 53 template<typename Key, 54 typename Mapped, 55 class Cmp_Fn, 56 template<typename Node_CItr, 57 class Node_Itr, 58 class Cmp_Fn, 59 typename _Alloc> 60 class Node_Update, 61 class Node, 62 typename _Alloc> 63 struct bin_search_tree_traits 64 { 65 private: 66 typedef types_traits<Key, Mapped, _Alloc, false> type_traits; 67 68 public: 69 typedef Node node; 70 71 typedef 72 bin_search_tree_const_it_< 73 typename _Alloc::template rebind< 74 node>::other::pointer, 75 typename type_traits::value_type, 76 typename type_traits::pointer, 77 typename type_traits::const_pointer, 78 typename type_traits::reference, 79 typename type_traits::const_reference, 80 true, 81 _Alloc> 82 point_const_iterator; 83 84 typedef 85 bin_search_tree_it_< 86 typename _Alloc::template rebind< 87 node>::other::pointer, 88 typename type_traits::value_type, 89 typename type_traits::pointer, 90 typename type_traits::const_pointer, 91 typename type_traits::reference, 92 typename type_traits::const_reference, 93 true, 94 _Alloc> 95 point_iterator; 96 97 typedef 98 bin_search_tree_const_it_< 99 typename _Alloc::template rebind< 100 node>::other::pointer, 101 typename type_traits::value_type, 102 typename type_traits::pointer, 103 typename type_traits::const_pointer, 104 typename type_traits::reference, 105 typename type_traits::const_reference, 106 false, 107 _Alloc> 108 const_reverse_iterator; 109 110 typedef 111 bin_search_tree_it_< 112 typename _Alloc::template rebind< 113 node>::other::pointer, 114 typename type_traits::value_type, 115 typename type_traits::pointer, 116 typename type_traits::const_pointer, 117 typename type_traits::reference, 118 typename type_traits::const_reference, 119 false, 120 _Alloc> 121 reverse_iterator; 122 123 /// This is an iterator to an iterator: it iterates over nodes, 124 /// and de-referencing it returns one of the tree's iterators. 125 typedef 126 bin_search_tree_const_node_it_< 127 Node, 128 point_const_iterator, 129 point_iterator, 130 _Alloc> 131 node_const_iterator; 132 133 typedef 134 bin_search_tree_node_it_< 135 Node, 136 point_const_iterator, 137 point_iterator, 138 _Alloc> 139 node_iterator; 140 141 typedef 142 Node_Update< 143 node_const_iterator, 144 node_iterator, 145 Cmp_Fn, 146 _Alloc> 147 node_update; 148 149 typedef 150 __gnu_pbds::null_node_update< 151 node_const_iterator, 152 node_iterator, 153 Cmp_Fn, 154 _Alloc>* 155 null_node_update_pointer; 156 }; 157 158 /// Specialization. 159 /// @ingroup traits 160 template<typename Key, 161 class Cmp_Fn, 162 template<typename Node_CItr, 163 class Node_Itr, 164 class Cmp_Fn, 165 typename _Alloc> 166 class Node_Update, 167 class Node, 168 typename _Alloc> 169 struct bin_search_tree_traits< 170 Key, 171 null_type, 172 Cmp_Fn, 173 Node_Update, 174 Node, 175 _Alloc> 176 { 177 private: 178 typedef types_traits<Key, null_type, _Alloc, false> type_traits; 179 180 public: 181 typedef Node node; 182 183 typedef 184 bin_search_tree_const_it_< 185 typename _Alloc::template rebind< 186 node>::other::pointer, 187 typename type_traits::value_type, 188 typename type_traits::pointer, 189 typename type_traits::const_pointer, 190 typename type_traits::reference, 191 typename type_traits::const_reference, 192 true, 193 _Alloc> 194 point_const_iterator; 195 196 typedef point_const_iterator point_iterator; 197 198 typedef 199 bin_search_tree_const_it_< 200 typename _Alloc::template rebind< 201 node>::other::pointer, 202 typename type_traits::value_type, 203 typename type_traits::pointer, 204 typename type_traits::const_pointer, 205 typename type_traits::reference, 206 typename type_traits::const_reference, 207 false, 208 _Alloc> 209 const_reverse_iterator; 210 211 typedef const_reverse_iterator reverse_iterator; 212 213 /// This is an iterator to an iterator: it iterates over nodes, 214 /// and de-referencing it returns one of the tree's iterators. 215 typedef 216 bin_search_tree_const_node_it_< 217 Node, 218 point_const_iterator, 219 point_iterator, 220 _Alloc> 221 node_const_iterator; 222 223 typedef node_const_iterator node_iterator; 224 225 typedef 226 Node_Update<node_const_iterator, node_iterator, Cmp_Fn, _Alloc> 227 node_update; 228 229 typedef 230 __gnu_pbds::null_node_update< 231 node_const_iterator, 232 node_iterator, 233 Cmp_Fn, 234 _Alloc>* 235 null_node_update_pointer; 236 }; 237 238 } // namespace detail 239 } // namespace __gnu_pbds 240 241 #endif // #ifndef PB_DS_BIN_SEARCH_TREE_NODE_AND_IT_TRAITS_HPP 242
