1169691Skan// -*- C++ -*- 2169691Skan 3169691Skan// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4169691Skan// 5169691Skan// This file is part of the GNU ISO C++ Library. This library is free 6169691Skan// software; you can redistribute it and/or modify it under the terms 7169691Skan// of the GNU General Public License as published by the Free Software 8169691Skan// Foundation; either version 2, or (at your option) any later 9169691Skan// version. 10169691Skan 11169691Skan// This library is distributed in the hope that it will be useful, but 12169691Skan// WITHOUT ANY WARRANTY; without even the implied warranty of 13169691Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14169691Skan// General Public License for more details. 15169691Skan 16169691Skan// You should have received a copy of the GNU General Public License 17169691Skan// along with this library; see the file COPYING. If not, write to 18169691Skan// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19169691Skan// MA 02111-1307, USA. 20169691Skan 21169691Skan// As a special exception, you may use this file as part of a free 22169691Skan// software library without restriction. Specifically, if other files 23169691Skan// instantiate templates or use macros or inline functions from this 24169691Skan// file, or you compile this file and link it with other files to 25169691Skan// produce an executable, this file does not by itself cause the 26169691Skan// resulting executable to be covered by the GNU General Public 27169691Skan// License. This exception does not however invalidate any other 28169691Skan// reasons why the executable file might be covered by the GNU General 29169691Skan// Public License. 30169691Skan 31169691Skan// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32169691Skan 33169691Skan// Permission to use, copy, modify, sell, and distribute this software 34169691Skan// is hereby granted without fee, provided that the above copyright 35169691Skan// notice appears in all copies, and that both that copyright notice 36169691Skan// and this permission notice appear in supporting documentation. None 37169691Skan// of the above authors, nor IBM Haifa Research Laboratories, make any 38169691Skan// representation about the suitability of this software for any 39169691Skan// purpose. It is provided "as is" without express or implied 40169691Skan// warranty. 41169691Skan 42169691Skan/** 43169691Skan * @file split_join_fn_imps.hpp 44169691Skan * Contains an implementation class for a pairing heap. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skantemplate<typename Pred> 49169691Skanvoid 50169691SkanPB_DS_CLASS_C_DEC:: 51169691Skansplit(Pred pred, PB_DS_CLASS_C_DEC& other) 52169691Skan{ 53169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 54169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 55169691Skan 56169691Skan other.clear(); 57169691Skan 58169691Skan if (base_type::empty()) 59169691Skan { 60169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 61169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 62169691Skan 63169691Skan return; 64169691Skan } 65169691Skan 66169691Skan base_type::to_linked_list(); 67169691Skan 68169691Skan node_pointer p_out = base_type::prune(pred); 69169691Skan 70169691Skan while (p_out != NULL) 71169691Skan { 72169691Skan _GLIBCXX_DEBUG_ASSERT(base_type::m_size > 0); 73169691Skan --base_type::m_size; 74169691Skan 75169691Skan ++other.m_size; 76169691Skan 77169691Skan node_pointer p_next = p_out->m_p_next_sibling; 78169691Skan 79169691Skan p_out->m_p_l_child = p_out->m_p_next_sibling = p_out->m_p_prev_or_parent = NULL; 80169691Skan 81169691Skan other.push_imp(p_out); 82169691Skan 83169691Skan p_out = p_next; 84169691Skan } 85169691Skan 86169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 87169691Skan 88169691Skan node_pointer p_cur = base_type::m_p_root; 89169691Skan 90169691Skan base_type::m_p_root = NULL; 91169691Skan 92169691Skan while (p_cur != NULL) 93169691Skan { 94169691Skan node_pointer p_next = p_cur->m_p_next_sibling; 95169691Skan 96169691Skan p_cur->m_p_l_child = p_cur->m_p_next_sibling = p_cur->m_p_prev_or_parent = NULL; 97169691Skan 98169691Skan push_imp(p_cur); 99169691Skan 100169691Skan p_cur = p_next; 101169691Skan } 102169691Skan 103169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 104169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 105169691Skan } 106169691Skan 107169691SkanPB_DS_CLASS_T_DEC 108169691Skaninline void 109169691SkanPB_DS_CLASS_C_DEC:: 110169691Skanjoin(PB_DS_CLASS_C_DEC& other) 111169691Skan{ 112169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 113169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 114169691Skan 115169691Skan if (other.m_p_root == NULL) 116169691Skan { 117169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 118169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 119169691Skan 120169691Skan return; 121169691Skan } 122169691Skan 123169691Skan if (base_type::m_p_root == NULL) 124169691Skan base_type::m_p_root = other.m_p_root; 125169691Skan else if (Cmp_Fn::operator()(base_type::m_p_root->m_value, other.m_p_root->m_value)) 126169691Skan { 127169691Skan base_type::make_child_of(base_type::m_p_root, other.m_p_root); 128169691Skan _GLIBCXX_DEBUG_ONLY(base_type::assert_node_consistent(other.m_p_root, false)); 129169691Skan 130169691Skan base_type::m_p_root = other.m_p_root; 131169691Skan } 132169691Skan else 133169691Skan { 134169691Skan base_type::make_child_of(other.m_p_root, base_type::m_p_root); 135169691Skan _GLIBCXX_DEBUG_ONLY(base_type::assert_node_consistent(base_type::m_p_root, false)); 136169691Skan } 137169691Skan 138169691Skan base_type::m_size += other.m_size; 139169691Skan 140169691Skan other.m_p_root = NULL; 141169691Skan other.m_size = 0; 142169691Skan 143169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 144169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 145169691Skan } 146169691Skan 147