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1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2025 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 detail/tree_trace_base.hpp 38 * Contains tree-related policies. 39 */ 40 41 #ifndef PB_DS_TREE_TRACE_BASE_HPP 42 #define PB_DS_TREE_TRACE_BASE_HPP 43 44 #ifdef PB_DS_TREE_TRACE 45 46 #include <ext/pb_ds/detail/branch_policy/branch_policy.hpp> 47 #include <ext/pb_ds/detail/branch_policy/null_node_metadata.hpp> 48 49 namespace __gnu_pbds 50 { 51 namespace detail 52 { 53 #ifdef PB_DS_TREE_TRACE 54 55 #define PB_DS_CLASS_T_DEC \ 56 template<typename Node_CItr, typename Node_Itr, \ 57 typename Cmp_Fn, bool Node_Based, typename _Alloc> 58 59 #define PB_DS_CLASS_C_DEC \ 60 tree_trace_base<Node_CItr, Node_Itr, Cmp_Fn, \ 61 Node_Based, _Alloc> 62 63 #define PB_DS_TRACE_BASE \ 64 branch_policy<Node_CItr, Node_Itr, _Alloc> 65 66 /// Tracing base class. 67 template<typename Node_CItr, typename Node_Itr, 68 typename Cmp_Fn, bool Node_Based, typename _Alloc> 69 class tree_trace_base : private PB_DS_TRACE_BASE 70 { 71 public: 72 void 73 trace() const; 74 75 private: 76 typedef PB_DS_TRACE_BASE base_type; 77 typedef Node_CItr node_const_iterator; 78 typedef typename _Alloc::size_type size_type; 79 80 void 81 trace_node(node_const_iterator, size_type) const; 82 83 _GLIBCXX_NODISCARD virtual bool 84 empty() const = 0; 85 86 virtual node_const_iterator 87 node_begin() const = 0; 88 89 virtual node_const_iterator 90 node_end() const = 0; 91 92 static void 93 print_node_pointer(Node_CItr, integral_constant<int,true>); 94 95 static void 96 print_node_pointer(Node_CItr, integral_constant<int,false>); 97 98 template<typename Metadata_> 99 static void 100 trace_it_metadata(Node_CItr, type_to_type<Metadata_>); 101 102 static void 103 trace_it_metadata(Node_CItr, type_to_type<null_type>); 104 }; 105 106 PB_DS_CLASS_T_DEC 107 void 108 PB_DS_CLASS_C_DEC:: 109 trace() const 110 { 111 if (empty()) 112 return; 113 trace_node(node_begin(), 0); 114 } 115 116 PB_DS_CLASS_T_DEC 117 void 118 PB_DS_CLASS_C_DEC:: 119 trace_node(node_const_iterator nd_it, size_type level) const 120 { 121 if (nd_it.get_r_child() != node_end()) 122 trace_node(nd_it.get_r_child(), level + 1); 123 124 for (size_type i = 0; i < level; ++i) 125 std::cerr << ' '; 126 127 print_node_pointer(nd_it, integral_constant<int,Node_Based>()); 128 std::cerr << base_type::extract_key(*(*nd_it)); 129 130 typedef type_to_type<typename node_const_iterator::metadata_type> 131 m_type_ind_t; 132 133 trace_it_metadata(nd_it, m_type_ind_t()); 134 135 std::cerr << std::endl; 136 137 if (nd_it.get_l_child() != node_end()) 138 trace_node(nd_it.get_l_child(), level + 1); 139 } 140 141 PB_DS_CLASS_T_DEC 142 template<typename Metadata_> 143 void 144 PB_DS_CLASS_C_DEC:: 145 trace_it_metadata(Node_CItr nd_it, type_to_type<Metadata_>) 146 { 147 const unsigned long ul = static_cast<unsigned long>(nd_it.get_metadata()); 148 std::cerr << " (" << ul << ") "; 149 } 150 151 PB_DS_CLASS_T_DEC 152 void 153 PB_DS_CLASS_C_DEC:: 154 trace_it_metadata(Node_CItr, type_to_type<null_type>) 155 { } 156 157 PB_DS_CLASS_T_DEC 158 void 159 PB_DS_CLASS_C_DEC:: 160 print_node_pointer(Node_CItr nd_it, integral_constant<int,true>) 161 { std::cerr << nd_it.m_p_nd << " "; } 162 163 PB_DS_CLASS_T_DEC 164 void 165 PB_DS_CLASS_C_DEC:: 166 print_node_pointer(Node_CItr nd_it, integral_constant<int,false>) 167 { std::cerr << *nd_it << " "; } 168 169 #undef PB_DS_CLASS_T_DEC 170 #undef PB_DS_CLASS_C_DEC 171 #undef PB_DS_TRACE_BASE 172 #endif // #ifdef PB_DS_TREE_TRACE 173 174 } // namespace detail 175 } // namespace __gnu_pbds 176 177 #endif // #ifdef PB_DS_TREE_TRACE 178 179 #endif // #ifndef PB_DS_TREE_TRACE_BASE_HPP
