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_base.hpp 44 * Contains a pat_trie_node_base base for a patricia tree. 45 */ 46 47 #ifndef PB_DS_PAT_TRIE_NODE_BASE_HPP 48 #define PB_DS_PAT_TRIE_NODE_BASE_HPP 49 50 #include <ext/pb_ds/detail/pat_trie_/node_metadata_base.hpp> 51 52 namespace pb_ds 53 { 54 namespace detail 55 { 56 #define PB_DS_CLASS_T_DEC \ 57 template<typename Type_Traits, typename E_Access_Traits, \ 58 typename Metadata, typename Allocator> 59 60 #define PB_DS_CLASS_C_DEC \ 61 pat_trie_node_base<Type_Traits, E_Access_Traits, Metadata, Allocator> 62 63 #define PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC \ 64 pat_trie_subtree_debug_info<Type_Traits, E_Access_Traits, Allocator> 65 66 enum pat_trie_node_type 67 { 68 pat_trie_internal_node_type, 69 pat_trie_leaf_node_type, 70 pat_trie_head_node_type 71 }; 72 73 template<typename Type_Traits, 74 typename E_Access_Traits, 75 typename Metadata, 76 typename Allocator> 77 struct pat_trie_node_base : public pat_trie_node_metadata_base< 78 Metadata, 79 Allocator> 80 { 81 public: 82 typedef 83 typename Allocator::template rebind< 84 pat_trie_node_base>::other::pointer 85 node_pointer; 86 87 typedef 88 typename Allocator::template rebind< 89 E_Access_Traits>::other::const_pointer 90 const_e_access_traits_pointer; 91 92 #ifdef _GLIBCXX_DEBUG 93 typedef 94 std::pair< 95 typename E_Access_Traits::const_iterator, 96 typename E_Access_Traits::const_iterator> 97 subtree_debug_info; 98 #endif 99 100 pat_trie_node_base(pat_trie_node_type type); 101 102 #ifdef _GLIBCXX_DEBUG 103 void 104 assert_valid(const_e_access_traits_pointer p_traits) const; 105 106 virtual subtree_debug_info 107 assert_valid_imp(const_e_access_traits_pointer p_traits) const = 0; 108 #endif 109 110 node_pointer m_p_parent; 111 const pat_trie_node_type m_type; 112 }; 113 114 PB_DS_CLASS_T_DEC 115 PB_DS_CLASS_C_DEC:: pat_trie_node_base(pat_trie_node_type type)116 pat_trie_node_base(pat_trie_node_type type) : m_type(type) 117 { } 118 119 #ifdef _GLIBCXX_DEBUG 120 PB_DS_CLASS_T_DEC 121 void 122 PB_DS_CLASS_C_DEC:: assert_valid(const_e_access_traits_pointer p_traits) const123 assert_valid(const_e_access_traits_pointer p_traits) const 124 { assert_valid_imp(p_traits); } 125 #endif 126 127 #undef PB_DS_CLASS_T_DEC 128 #undef PB_DS_CLASS_C_DEC 129 #undef PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC 130 131 } // namespace detail 132 } // namespace pb_ds 133 134 #endif 135