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 bin_search_tree_/constructors_destructor_fn_imps.hpp 38 * Contains an implementation class for bin_search_tree_. 39 */ 40 41 PB_DS_CLASS_T_DEC 42 typename PB_DS_CLASS_C_DEC::node_allocator 43 PB_DS_CLASS_C_DEC::s_node_allocator; 44 45 PB_DS_CLASS_T_DEC 46 PB_DS_CLASS_C_DEC:: 47 PB_DS_BIN_TREE_NAME() : m_p_head(s_node_allocator.allocate(1)), m_size(0) 48 { 49 initialize(); 50 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 51 } 52 53 PB_DS_CLASS_T_DEC 54 PB_DS_CLASS_C_DEC:: 55 PB_DS_BIN_TREE_NAME(const Cmp_Fn& r_cmp_fn) : 56 Cmp_Fn(r_cmp_fn), m_p_head(s_node_allocator.allocate(1)), m_size(0) 57 { 58 initialize(); 59 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 60 } 61 62 PB_DS_CLASS_T_DEC 63 PB_DS_CLASS_C_DEC:: 64 PB_DS_BIN_TREE_NAME(const Cmp_Fn& r_cmp_fn, const node_update& r_node_update) : 65 Cmp_Fn(r_cmp_fn), 66 node_update(r_node_update), 67 m_p_head(s_node_allocator.allocate(1)), 68 m_size(0) 69 { 70 initialize(); 71 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 72 } 73 74 PB_DS_CLASS_T_DEC 75 PB_DS_CLASS_C_DEC:: 76 PB_DS_BIN_TREE_NAME(const PB_DS_CLASS_C_DEC& other) : 77 #ifdef _GLIBCXX_DEBUG 78 debug_base(other), 79 #endif 80 #ifdef PB_DS_TREE_TRACE 81 PB_DS_TREE_TRACE_BASE_C_DEC(other), 82 #endif 83 Cmp_Fn(other), 84 node_update(other), 85 m_p_head(s_node_allocator.allocate(1)), 86 m_size(0) 87 { 88 initialize(); 89 m_size = other.m_size; 90 PB_DS_STRUCT_ONLY_ASSERT_VALID(other) 91 92 __try 93 { 94 m_p_head->m_p_parent = recursive_copy_node(other.m_p_head->m_p_parent); 95 if (m_p_head->m_p_parent != 0) 96 m_p_head->m_p_parent->m_p_parent = m_p_head; 97 m_size = other.m_size; 98 initialize_min_max(); 99 } 100 __catch(...) 101 { 102 _GLIBCXX_DEBUG_ONLY(debug_base::clear();) 103 s_node_allocator.deallocate(m_p_head, 1); 104 __throw_exception_again; 105 } 106 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 107 } 108 109 PB_DS_CLASS_T_DEC 110 void 111 PB_DS_CLASS_C_DEC:: 112 swap(PB_DS_CLASS_C_DEC& other) 113 { 114 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 115 PB_DS_STRUCT_ONLY_ASSERT_VALID(other) 116 value_swap(other); 117 std::swap((Cmp_Fn& )(*this), (Cmp_Fn& )other); 118 PB_DS_STRUCT_ONLY_ASSERT_VALID((*this)) 119 PB_DS_STRUCT_ONLY_ASSERT_VALID(other) 120 } 121 122 PB_DS_CLASS_T_DEC 123 void 124 PB_DS_CLASS_C_DEC:: 125 value_swap(PB_DS_CLASS_C_DEC& other) 126 { 127 _GLIBCXX_DEBUG_ONLY(debug_base::swap(other);) 128 std::swap(m_p_head, other.m_p_head); 129 std::swap(m_size, other.m_size); 130 } 131 132 PB_DS_CLASS_T_DEC 133 PB_DS_CLASS_C_DEC:: 134 ~PB_DS_BIN_TREE_NAME() 135 { 136 clear(); 137 s_node_allocator.deallocate(m_p_head, 1); 138 } 139 140 PB_DS_CLASS_T_DEC 141 void 142 PB_DS_CLASS_C_DEC:: 143 initialize() 144 { 145 m_p_head->m_p_parent = 0; 146 m_p_head->m_p_left = m_p_head; 147 m_p_head->m_p_right = m_p_head; 148 m_size = 0; 149 } 150 151 PB_DS_CLASS_T_DEC 152 typename PB_DS_CLASS_C_DEC::node_pointer 153 PB_DS_CLASS_C_DEC:: 154 recursive_copy_node(const node_pointer p_nd) 155 { 156 if (p_nd == 0) 157 return (0); 158 159 node_pointer p_ret = s_node_allocator.allocate(1); 160 __try 161 { 162 new (p_ret) node(*p_nd); 163 } 164 __catch(...) 165 { 166 s_node_allocator.deallocate(p_ret, 1); 167 __throw_exception_again; 168 } 169 170 p_ret->m_p_left = p_ret->m_p_right = 0; 171 172 __try 173 { 174 p_ret->m_p_left = recursive_copy_node(p_nd->m_p_left); 175 p_ret->m_p_right = recursive_copy_node(p_nd->m_p_right); 176 } 177 __catch(...) 178 { 179 clear_imp(p_ret); 180 __throw_exception_again; 181 } 182 183 if (p_ret->m_p_left != 0) 184 p_ret->m_p_left->m_p_parent = p_ret; 185 186 if (p_ret->m_p_right != 0) 187 p_ret->m_p_right->m_p_parent = p_ret; 188 189 PB_DS_ASSERT_NODE_CONSISTENT(p_ret) 190 return p_ret; 191 } 192 193 PB_DS_CLASS_T_DEC 194 void 195 PB_DS_CLASS_C_DEC:: 196 initialize_min_max() 197 { 198 if (m_p_head->m_p_parent == 0) 199 { 200 m_p_head->m_p_left = m_p_head->m_p_right = m_p_head; 201 return; 202 } 203 204 { 205 node_pointer p_min = m_p_head->m_p_parent; 206 while (p_min->m_p_left != 0) 207 p_min = p_min->m_p_left; 208 m_p_head->m_p_left = p_min; 209 } 210 211 { 212 node_pointer p_max = m_p_head->m_p_parent; 213 while (p_max->m_p_right != 0) 214 p_max = p_max->m_p_right; 215 m_p_head->m_p_right = p_max; 216 } 217 } 218 219
