111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// -*- C++ -*- 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Copyright (C) 2005-2014 Free Software Foundation, Inc. 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This file is part of the GNU ISO C++ Library. This library is free 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// software; you can redistribute it and/or modify it under the terms 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// of the GNU General Public License as published by the Free Software 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Foundation; either version 3, or (at your option) any later 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// version. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This library is distributed in the hope that it will be useful, but 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// WITHOUT ANY WARRANTY; without even the implied warranty of 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// General Public License for more details. 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Under Section 7 of GPL version 3, you are granted additional 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// permissions described in the GCC Runtime Library Exception, version 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 3.1, as published by the Free Software Foundation. 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// You should have received a copy of the GNU General Public License and 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// a copy of the GCC Runtime Library Exception along with this program; 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// <http://www.gnu.org/licenses/>. 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Permission to use, copy, modify, sell, and distribute this software 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// is hereby granted without fee, provided that the above copyright 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// notice appears in all copies, and that both that copyright notice 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// and this permission notice appear in supporting documentation. None 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// of the above authors, nor IBM Haifa Research Laboratories, make any 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// representation about the suitability of this software for any 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// purpose. It is provided "as is" without express or implied 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// warranty. 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/** 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * @file pairing_heap_/split_join_fn_imps.hpp 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Contains an implementation class for a pairing heap. 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4111cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertPB_DS_CLASS_T_DEC 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttemplate<typename Pred> 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid 4411cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertPB_DS_CLASS_C_DEC:: 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albertsplit(Pred pred, PB_DS_CLASS_C_DEC& other) 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert other.clear(); 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (base_type::empty()) 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return; 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::to_linked_list(); 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert node_pointer p_out = base_type::prune(pred); 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert while (p_out != 0) 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert _GLIBCXX_DEBUG_ASSERT(base_type::m_size > 0); 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert --base_type::m_size; 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ++other.m_size; 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert node_pointer p_next = p_out->m_p_next_sibling; 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert p_out->m_p_l_child = p_out->m_p_next_sibling = p_out->m_p_prev_or_parent = 0; 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert other.push_imp(p_out); 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert p_out = p_next; 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert node_pointer p_cur = base_type::m_p_root; 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::m_p_root = 0; 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert while (p_cur != 0) 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert node_pointer p_next = p_cur->m_p_next_sibling; 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert p_cur->m_p_l_child = p_cur->m_p_next_sibling = p_cur->m_p_prev_or_parent = 0; 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert push_imp(p_cur); 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert p_cur = p_next; 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8911cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertPB_DS_CLASS_T_DEC 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albertinline void 9111cd02dfb91661c65134cac258cf5924270e9d2Dan AlbertPB_DS_CLASS_C_DEC:: 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertjoin(PB_DS_CLASS_C_DEC& other) 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (other.m_p_root == 0) 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert return; 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (base_type::m_p_root == 0) 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::m_p_root = other.m_p_root; 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert else if (Cmp_Fn::operator()(base_type::m_p_root->m_value, other.m_p_root->m_value)) 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::make_child_of(base_type::m_p_root, other.m_p_root); 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_NODE_CONSISTENT(other.m_p_root, false) 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::m_p_root = other.m_p_root; 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert else 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::make_child_of(other.m_p_root, base_type::m_p_root); 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_NODE_CONSISTENT(base_type::m_p_root, false) 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert base_type::m_size += other.m_size; 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert other.m_p_root = 0; 12011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert other.m_size = 0; 12111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID((*this)) 12211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert PB_DS_ASSERT_VALID(other) 12311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 124