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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [include/] [ext/] [pb_ds/] [detail/] [splay_tree_/] [split_join_fn_imps.hpp] - Rev 516
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// -*- C++ -*- // Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 3, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. // Permission to use, copy, modify, sell, and distribute this software // is hereby granted without fee, provided that the above copyright // notice appears in all copies, and that both that copyright notice // and this permission notice appear in supporting documentation. None // of the above authors, nor IBM Haifa Research Laboratories, make any // representation about the suitability of this software for any // purpose. It is provided "as is" without express or implied // warranty. /** * @file split_join_fn_imps.hpp * Contains an implementation class for splay_tree_. */ PB_DS_CLASS_T_DEC inline void PB_DS_CLASS_C_DEC:: join(PB_DS_CLASS_C_DEC& other) { _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) if (base_type::join_prep(other) == false) { _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) return; } node_pointer p_target_r = other.leftmost(other.m_p_head); _GLIBCXX_DEBUG_ASSERT(p_target_r != NULL); other.splay(p_target_r); _GLIBCXX_DEBUG_ASSERT(p_target_r == other.m_p_head->m_p_parent); _GLIBCXX_DEBUG_ASSERT(p_target_r->m_p_left == NULL); p_target_r->m_p_left = base_type::m_p_head->m_p_parent; _GLIBCXX_DEBUG_ASSERT(p_target_r->m_p_left != NULL); p_target_r->m_p_left->m_p_parent = p_target_r; base_type::m_p_head->m_p_parent = p_target_r; p_target_r->m_p_parent = base_type::m_p_head; apply_update(p_target_r, (node_update* )this); base_type::join_finish(other); _GLIBCXX_DEBUG_ONLY(assert_valid();) _GLIBCXX_DEBUG_ONLY(other.assert_valid();) } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: split(const_key_reference r_key, PB_DS_CLASS_C_DEC& other) { _GLIBCXX_DEBUG_ONLY(assert_valid()); _GLIBCXX_DEBUG_ONLY(other.assert_valid()); if (base_type::split_prep(r_key, other) == false) { _GLIBCXX_DEBUG_ONLY(assert_valid()); _GLIBCXX_DEBUG_ONLY(other.assert_valid()); return; } node_pointer p_upper_bound = upper_bound(r_key).m_p_nd; _GLIBCXX_DEBUG_ASSERT(p_upper_bound != NULL); splay(p_upper_bound); _GLIBCXX_DEBUG_ASSERT(p_upper_bound->m_p_parent == this->m_p_head); node_pointer p_new_root = p_upper_bound->m_p_left; _GLIBCXX_DEBUG_ASSERT(p_new_root != NULL); base_type::m_p_head->m_p_parent = p_new_root; p_new_root->m_p_parent = base_type::m_p_head; other.m_p_head->m_p_parent = p_upper_bound; p_upper_bound->m_p_parent = other.m_p_head; p_upper_bound->m_p_left = NULL; apply_update(p_upper_bound, (node_update* )this); base_type::split_finish(other); _GLIBCXX_DEBUG_ONLY(assert_valid()); _GLIBCXX_DEBUG_ONLY(other.assert_valid()); }