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 split_join_fn_imps.hpp 44 * Contains an implementation class for bin_search_tree_. 45 */ 46 47PB_DS_CLASS_T_DEC 48bool 49PB_DS_CLASS_C_DEC:: 50join_prep(PB_DS_CLASS_C_DEC& other) 51{ 52 _GLIBCXX_DEBUG_ONLY(assert_valid();) 53 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 54 if (other.m_size == 0) 55 return false; 56 57 if (m_size == 0) 58 { 59 value_swap(other); 60 return false; 61 } 62 63 const bool greater = Cmp_Fn::operator()(PB_DS_V2F(m_p_head->m_p_right->m_value), PB_DS_V2F(other.m_p_head->m_p_left->m_value)); 64 65 const bool lesser = Cmp_Fn::operator()(PB_DS_V2F(other.m_p_head->m_p_right->m_value), PB_DS_V2F(m_p_head->m_p_left->m_value)); 66 67 if (!greater && !lesser) 68 __throw_join_error(); 69 70 if (lesser) 71 value_swap(other); 72 73 m_size += other.m_size; 74 _GLIBCXX_DEBUG_ONLY(map_debug_base::join(other);) 75 return true; 76} 77 78PB_DS_CLASS_T_DEC 79void 80PB_DS_CLASS_C_DEC:: 81join_finish(PB_DS_CLASS_C_DEC& other) 82{ 83 initialize_min_max(); 84 other.initialize(); 85} 86 87PB_DS_CLASS_T_DEC 88bool 89PB_DS_CLASS_C_DEC:: 90split_prep(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) 91{ 92 _GLIBCXX_DEBUG_ONLY(assert_valid();) 93 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 94 other.clear(); 95 96 if (m_size == 0) 97 { 98 _GLIBCXX_DEBUG_ONLY(assert_valid();) 99 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 100 return false; 101 } 102 103 if (Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_left->m_value))) 104 { 105 value_swap(other); 106 _GLIBCXX_DEBUG_ONLY(assert_valid();) 107 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 108 return false; 109 } 110 111 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_right->m_value))) 112 { 113 _GLIBCXX_DEBUG_ONLY(assert_valid();) 114 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 115 return false; 116 } 117 118 if (m_size == 1) 119 { 120 value_swap(other); 121 _GLIBCXX_DEBUG_ONLY(assert_valid();) 122 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 123 return false; 124 } 125 126 _GLIBCXX_DEBUG_ONLY(map_debug_base::split(r_key,(Cmp_Fn& )(*this), other);) 127 return true; 128} 129 130PB_DS_CLASS_T_DEC 131void 132PB_DS_CLASS_C_DEC:: 133split_finish(PB_DS_CLASS_C_DEC& other) 134{ 135 other.initialize_min_max(); 136 other.m_size = std::distance(other.begin(), other.end()); 137 m_size -= other.m_size; 138 initialize_min_max(); 139 _GLIBCXX_DEBUG_ONLY(assert_valid();) 140 _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 141} 142 143PB_DS_CLASS_T_DEC 144typename PB_DS_CLASS_C_DEC::size_type 145PB_DS_CLASS_C_DEC:: 146recursive_count(node_pointer p) const 147{ 148 if (p == NULL) 149 return 0; 150 return 1 + recursive_count(p->m_p_left) + recursive_count(p->m_p_right); 151} 152 153