1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2018 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 149