1// -*- C++ -*- 2 3// Copyright (C) 2005, 2006, 2009 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 node_base.hpp 38 * Contains a pat_trie_node_base base for a patricia tree. 39 */ 40 41#ifndef PB_DS_PAT_TRIE_NODE_BASE_HPP 42#define PB_DS_PAT_TRIE_NODE_BASE_HPP 43 44#include <ext/pb_ds/detail/pat_trie_/node_metadata_base.hpp> 45 46namespace __gnu_pbds 47{ 48 namespace detail 49 { 50#define PB_DS_CLASS_T_DEC \ 51 template<typename Type_Traits, typename E_Access_Traits, \ 52 typename Metadata, typename Allocator> 53 54#define PB_DS_CLASS_C_DEC \ 55 pat_trie_node_base<Type_Traits, E_Access_Traits, Metadata, Allocator> 56 57#define PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC \ 58 pat_trie_subtree_debug_info<Type_Traits, E_Access_Traits, Allocator> 59 60 enum pat_trie_node_type 61 { 62 pat_trie_internal_node_type, 63 pat_trie_leaf_node_type, 64 pat_trie_head_node_type 65 }; 66 67 template<typename Type_Traits, 68 typename E_Access_Traits, 69 typename Metadata, 70 typename Allocator> 71 struct pat_trie_node_base : public pat_trie_node_metadata_base< 72 Metadata, 73 Allocator> 74 { 75 public: 76 typedef 77 typename Allocator::template rebind< 78 pat_trie_node_base>::other::pointer 79 node_pointer; 80 81 typedef 82 typename Allocator::template rebind< 83 E_Access_Traits>::other::const_pointer 84 const_e_access_traits_pointer; 85 86#ifdef _GLIBCXX_DEBUG 87 typedef 88 std::pair< 89 typename E_Access_Traits::const_iterator, 90 typename E_Access_Traits::const_iterator> 91 subtree_debug_info; 92#endif 93 94 pat_trie_node_base(pat_trie_node_type type); 95 96#ifdef _GLIBCXX_DEBUG 97 void 98 assert_valid(const_e_access_traits_pointer p_traits) const; 99 100 virtual subtree_debug_info 101 assert_valid_imp(const_e_access_traits_pointer p_traits) const = 0; 102#endif 103 104 node_pointer m_p_parent; 105 const pat_trie_node_type m_type; 106 }; 107 108 PB_DS_CLASS_T_DEC 109 PB_DS_CLASS_C_DEC:: 110 pat_trie_node_base(pat_trie_node_type type) : m_type(type) 111 { } 112 113#ifdef _GLIBCXX_DEBUG 114 PB_DS_CLASS_T_DEC 115 void 116 PB_DS_CLASS_C_DEC:: 117 assert_valid(const_e_access_traits_pointer p_traits) const 118 { assert_valid_imp(p_traits); } 119#endif 120 121#undef PB_DS_CLASS_T_DEC 122#undef PB_DS_CLASS_C_DEC 123#undef PB_DS_PAT_TRIE_SUBTREE_DEBUG_INFO_C_DEC 124 125 } // namespace detail 126} // namespace __gnu_pbds 127 128#endif 129