1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006, 2009, 2010 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 insert_fn_imps.hpp 38 * Contains an implementation class for bin_search_tree_. 39 */ 40 41 PB_DS_CLASS_T_DEC 42 inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool> 43 PB_DS_CLASS_C_DEC:: 44 insert_leaf(const_reference r_value) 45 { 46 _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();) 47 48 if (m_size == 0) 49 return (std::make_pair( 50 insert_imp_empty(r_value), 51 true)); 52 53 node_pointer p_nd = m_p_head->m_p_parent; 54 node_pointer p_pot = m_p_head; 55 56 while (p_nd != 0) 57 if (!Cmp_Fn::operator()( 58 PB_DS_V2F(p_nd->m_value), 59 PB_DS_V2F(r_value))) 60 { 61 p_pot = p_nd; 62 63 p_nd = p_nd->m_p_left; 64 } 65 else 66 p_nd = p_nd->m_p_right; 67 68 if (p_pot == m_p_head) 69 return (std::make_pair( 70 insert_leaf_new(r_value, m_p_head->m_p_right, false), 71 true)); 72 73 if (!Cmp_Fn::operator()( 74 PB_DS_V2F(r_value), 75 PB_DS_V2F(p_pot->m_value))) 76 { 77 _GLIBCXX_DEBUG_ONLY(structure_only_assert_valid();) 78 79 _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists( 80 PB_DS_V2F(r_value))); 81 82 return (std::make_pair(p_pot, false)); 83 } 84 85 _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist( 86 PB_DS_V2F(r_value))); 87 88 p_nd = p_pot->m_p_left; 89 if (p_nd == 0) 90 return (std::make_pair( 91 insert_leaf_new(r_value, p_pot, true), 92 true)); 93 94 while (p_nd->m_p_right != 0) 95 p_nd = p_nd->m_p_right; 96 97 return (std::make_pair( 98 insert_leaf_new(r_value, p_nd, false), 99 true)); 100 } 101 102 PB_DS_CLASS_T_DEC 103 inline typename PB_DS_CLASS_C_DEC::iterator 104 PB_DS_CLASS_C_DEC:: 105 insert_leaf_new(const_reference r_value, node_pointer p_nd, bool left_nd) 106 { 107 node_pointer p_new_nd = 108 get_new_node_for_leaf_insert( r_value, traits_base::m_no_throw_copies_indicator); 109 110 if (left_nd) 111 { 112 _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == 0); 113 _GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()( 114 PB_DS_V2F(r_value), 115 PB_DS_V2F(p_nd->m_value))); 116 117 p_nd->m_p_left = p_new_nd; 118 119 if (m_p_head->m_p_left == p_nd) 120 m_p_head->m_p_left = p_new_nd; 121 } 122 else 123 { 124 _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_right == 0); 125 _GLIBCXX_DEBUG_ASSERT(Cmp_Fn::operator()( 126 PB_DS_V2F(p_nd->m_value), 127 PB_DS_V2F(r_value))); 128 129 p_nd->m_p_right = p_new_nd; 130 131 if (m_p_head->m_p_right == p_nd) 132 m_p_head->m_p_right = p_new_nd; 133 } 134 135 p_new_nd->m_p_parent = p_nd; 136 137 p_new_nd->m_p_left = p_new_nd->m_p_right = 0; 138 139 _GLIBCXX_DEBUG_ONLY(assert_node_consistent(p_nd)); 140 141 update_to_top(p_new_nd, (node_update* )this); 142 143 _GLIBCXX_DEBUG_ONLY(debug_base::insert_new( 144 PB_DS_V2F(r_value))); 145 146 return (iterator(p_new_nd)); 147 } 148 149 PB_DS_CLASS_T_DEC 150 inline typename PB_DS_CLASS_C_DEC::iterator 151 PB_DS_CLASS_C_DEC:: 152 insert_imp_empty(const_reference r_value) 153 { 154 node_pointer p_new_node = 155 get_new_node_for_leaf_insert( r_value, traits_base::m_no_throw_copies_indicator); 156 157 m_p_head->m_p_left = m_p_head->m_p_right = 158 m_p_head->m_p_parent = p_new_node; 159 160 p_new_node->m_p_parent = m_p_head; 161 162 p_new_node->m_p_left = p_new_node->m_p_right = 0; 163 164 _GLIBCXX_DEBUG_ONLY(debug_base::insert_new( 165 PB_DS_V2F(r_value))); 166 167 update_to_top(m_p_head->m_p_parent, (node_update* )this); 168 169 return (iterator(p_new_node)); 170 } 171 172 PB_DS_CLASS_T_DEC 173 inline typename PB_DS_CLASS_C_DEC::node_pointer 174 PB_DS_CLASS_C_DEC:: 175 get_new_node_for_leaf_insert(const_reference r_val, false_type) 176 { 177 node_pointer p_new_nd = s_node_allocator.allocate(1); 178 179 cond_dealtor_t cond(p_new_nd); 180 181 new (const_cast<void* >( 182 static_cast<const void* >(&p_new_nd->m_value))) 183 typename node::value_type(r_val); 184 185 cond.set_no_action(); 186 187 p_new_nd->m_p_left = p_new_nd->m_p_right = 0; 188 189 ++m_size; 190 191 return (p_new_nd); 192 } 193 194 PB_DS_CLASS_T_DEC 195 inline typename PB_DS_CLASS_C_DEC::node_pointer 196 PB_DS_CLASS_C_DEC:: 197 get_new_node_for_leaf_insert(const_reference r_val, true_type) 198 { 199 node_pointer p_new_nd = s_node_allocator.allocate(1); 200 201 new (const_cast<void* >( 202 static_cast<const void* >(&p_new_nd->m_value))) 203 typename node::value_type(r_val); 204 205 p_new_nd->m_p_left = p_new_nd->m_p_right = 0; 206 207 ++m_size; 208 209 return (p_new_nd); 210 } 211 212
