libstdc++

pat_trie_/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 pat_trie_/traits.hpp
38 * Contains an implementation class for pat_trie_.
39 */
40
41 #ifndef PB_DS_PAT_TRIE_NODE_AND_IT_TRAITS_HPP
42 #define PB_DS_PAT_TRIE_NODE_AND_IT_TRAITS_HPP
43
44 #include <ext/pb_ds/detail/pat_trie_/pat_trie_base.hpp>
45 #include <ext/pb_ds/detail/pat_trie_/synth_access_traits.hpp>
46
47 namespace __gnu_pbds
48 {
49 namespace detail
50 {
51 /// Specialization.
52 /// @ingroup traits
53 template<typename Key,
54 typename Mapped,
55 typename _ATraits,
56 template<typename Node_CItr,
57 typename Node_Itr,
58 typename Cmp_Fn_,
59 typename _Alloc_>
60 class Node_Update,
61 typename _Alloc>
62 struct trie_traits<Key, Mapped, _ATraits, Node_Update, pat_trie_tag, _Alloc>
63 {
64 private:
65 typedef pat_trie_base base_type;
66 typedef types_traits<Key, Mapped, _Alloc, false> type_traits;
67
68 public:
69 typedef typename trie_node_metadata_dispatch<Key, Mapped, _ATraits, Node_Update, _Alloc>::type metadata_type;
70 typedef base_type::_Metadata<metadata_type, _Alloc> metadata;
71 typedef _ATraits access_traits;
72
73 /// Type for synthesized traits.
74 typedef __gnu_pbds::detail::synth_access_traits<type_traits, false, access_traits> synth_access_traits;
75
76 typedef base_type::_Node_base<synth_access_traits, metadata> node;
77 typedef base_type::_Head<synth_access_traits, metadata> head;
78 typedef base_type::_Leaf<synth_access_traits, metadata> leaf;
79 typedef base_type::_Inode<synth_access_traits, metadata> inode;
80
81 typedef base_type::_Iter<node, leaf, head, inode, true> iterator;
82 typedef base_type::_CIter<node, leaf, head, inode, true> const_iterator;
83 typedef base_type::_Iter<node, leaf, head, inode, false> reverse_iterator;
84 typedef base_type::_CIter<node, leaf, head, inode, false> const_reverse_iterator;
85
86 /// This is an iterator to an iterator: it iterates over nodes,
87 /// and de-referencing it returns one of the tree's iterators.
88 typedef base_type::_Node_citer<node, leaf, head, inode, const_iterator, iterator, _Alloc> node_const_iterator;
89
90 typedef base_type::_Node_iter<node, leaf, head, inode, const_iterator, iterator, _Alloc> node_iterator;
91
92 /// Type for node update.
93 typedef Node_Update<node_const_iterator, node_iterator, _ATraits, _Alloc> node_update;
94
95 typedef null_node_update<node_const_iterator, node_iterator, _ATraits, _Alloc>* null_node_update_pointer;
96 };
97
98
99 /// Specialization.
100 /// @ingroup traits
101 template<typename Key,
102 typename _ATraits,
103 template<typename Node_CItr,
104 typename Node_Itr,
105 typename Cmp_Fn_,
106 typename _Alloc_>
107 class Node_Update,
108 typename _Alloc>
109 struct trie_traits<Key, null_type, _ATraits, Node_Update, pat_trie_tag, _Alloc>
110 {
111 private:
112 typedef pat_trie_base base_type;
113 typedef types_traits<Key, null_type, _Alloc, false> type_traits;
114
115 public:
116 typedef typename trie_node_metadata_dispatch<Key, null_type, _ATraits, Node_Update, _Alloc>::type metadata_type;
117 typedef base_type::_Metadata<metadata_type, _Alloc> metadata;
118 typedef _ATraits access_traits;
119
120 /// Type for synthesized traits.
121 typedef __gnu_pbds::detail::synth_access_traits<type_traits, true, access_traits> synth_access_traits;
122
123 typedef base_type::_Node_base<synth_access_traits, metadata> node;
124 typedef base_type::_Head<synth_access_traits, metadata> head;
125 typedef base_type::_Leaf<synth_access_traits, metadata> leaf;
126 typedef base_type::_Inode<synth_access_traits, metadata> inode;
127
128 typedef base_type::_CIter<node, leaf, head, inode, true> const_iterator;
129 typedef const_iterator iterator;
130 typedef base_type::_CIter<node, leaf, head, inode, false> const_reverse_iterator;
131 typedef const_reverse_iterator reverse_iterator;
132
133 /// This is an iterator to an iterator: it iterates over nodes,
134 /// and de-referencing it returns one of the tree's iterators.
135 typedef base_type::_Node_citer<node, leaf, head, inode, const_iterator, iterator, _Alloc> node_const_iterator;
136
137 typedef node_const_iterator node_iterator;
138
139 /// Type for node update.
140 typedef Node_Update<node_const_iterator, node_iterator, _ATraits, _Alloc> node_update;
141
142 typedef null_node_update<node_const_iterator, node_const_iterator, _ATraits, _Alloc>* null_node_update_pointer;
143 };
144
145 } // namespace detail
146 } // namespace __gnu_pbds
147
148 #endif // #ifndef PB_DS_PAT_TRIE_NODE_AND_IT_TRAITS_HPP