libstdc++

bin_search_tree_/traits.hpp
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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