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 splay_tree_. 45169691Skan */ 46169691Skan 47169691SkanPB_DS_CLASS_T_DEC 48169691Skaninline void 49169691SkanPB_DS_CLASS_C_DEC:: 50169691Skanjoin(PB_DS_CLASS_C_DEC& other) 51169691Skan{ 52169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 53169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 54169691Skan if (base_type::join_prep(other) == false) 55169691Skan { 56169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 57169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 58169691Skan return; 59169691Skan } 60169691Skan 61169691Skan node_pointer p_target_r = other.leftmost(other.m_p_head); 62169691Skan _GLIBCXX_DEBUG_ASSERT(p_target_r != NULL); 63169691Skan other.splay(p_target_r); 64169691Skan 65169691Skan _GLIBCXX_DEBUG_ASSERT(p_target_r == other.m_p_head->m_p_parent); 66169691Skan _GLIBCXX_DEBUG_ASSERT(p_target_r->m_p_left == NULL); 67169691Skan 68169691Skan p_target_r->m_p_left = base_type::m_p_head->m_p_parent; 69169691Skan 70169691Skan _GLIBCXX_DEBUG_ASSERT(p_target_r->m_p_left != NULL); 71169691Skan p_target_r->m_p_left->m_p_parent = p_target_r; 72169691Skan 73169691Skan base_type::m_p_head->m_p_parent = p_target_r; 74169691Skan p_target_r->m_p_parent = base_type::m_p_head; 75169691Skan apply_update(p_target_r, (node_update* )this); 76169691Skan 77169691Skan base_type::join_finish(other); 78169691Skan 79169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid();) 80169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid();) 81169691Skan} 82169691Skan 83169691SkanPB_DS_CLASS_T_DEC 84169691Skanvoid 85169691SkanPB_DS_CLASS_C_DEC:: 86169691Skansplit(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) 87169691Skan{ 88169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid()); 89169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid()); 90169691Skan 91169691Skan if (base_type::split_prep(r_key, other) == false) 92169691Skan { 93169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid()); 94169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid()); 95169691Skan return; 96169691Skan } 97169691Skan 98169691Skan node_pointer p_upper_bound = upper_bound(r_key).m_p_nd; 99169691Skan _GLIBCXX_DEBUG_ASSERT(p_upper_bound != NULL); 100169691Skan 101169691Skan splay(p_upper_bound); 102169691Skan _GLIBCXX_DEBUG_ASSERT(p_upper_bound->m_p_parent == this->m_p_head); 103169691Skan 104169691Skan node_pointer p_new_root = p_upper_bound->m_p_left; 105169691Skan _GLIBCXX_DEBUG_ASSERT(p_new_root != NULL); 106169691Skan 107169691Skan base_type::m_p_head->m_p_parent = p_new_root; 108169691Skan p_new_root->m_p_parent = base_type::m_p_head; 109169691Skan other.m_p_head->m_p_parent = p_upper_bound; 110169691Skan p_upper_bound->m_p_parent = other.m_p_head; 111169691Skan p_upper_bound->m_p_left = NULL; 112169691Skan apply_update(p_upper_bound, (node_update* )this); 113169691Skan base_type::split_finish(other); 114169691Skan 115169691Skan _GLIBCXX_DEBUG_ONLY(assert_valid()); 116169691Skan _GLIBCXX_DEBUG_ONLY(other.assert_valid()); 117169691Skan} 118169691Skan 119