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find_fn_imps.hpp
// -*- C++ -*- // Copyright (C) 2005-2018 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 splay_tree_/find_fn_imps.hpp * Contains an implementation class for splay_tree_. */ PB_DS_CLASS_T_DEC inline typename PB_DS_CLASS_C_DEC::point_iterator PB_DS_CLASS_C_DEC:: find(key_const_reference r_key) { node_pointer p_found = find_imp(r_key); if (p_found != base_type::m_p_head) splay(p_found); return point_iterator(p_found); } PB_DS_CLASS_T_DEC inline typename PB_DS_CLASS_C_DEC::point_const_iterator PB_DS_CLASS_C_DEC:: find(key_const_reference r_key) const { const node_pointer p_found = find_imp(r_key); if (p_found != base_type::m_p_head) const_cast<PB_DS_CLASS_C_DEC* >(this)->splay(p_found); return point_iterator(p_found); } PB_DS_CLASS_T_DEC inline typename PB_DS_CLASS_C_DEC::node_pointer PB_DS_CLASS_C_DEC:: find_imp(key_const_reference r_key) { _GLIBCXX_DEBUG_ONLY(base_type::structure_only_assert_valid(__FILE__, __LINE__);) node_pointer p_nd = base_type::m_p_head->m_p_parent; while (p_nd != 0) if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) { if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) return p_nd; p_nd = p_nd->m_p_left; } else p_nd = p_nd->m_p_right; return base_type::m_p_head; } PB_DS_CLASS_T_DEC inline const typename PB_DS_CLASS_C_DEC::node_pointer PB_DS_CLASS_C_DEC:: find_imp(key_const_reference r_key) const { PB_DS_ASSERT_VALID((*this)) node_pointer p_nd = base_type::m_p_head->m_p_parent; while (p_nd != 0) if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) { if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) return p_nd; p_nd = p_nd->m_p_left; } else p_nd = p_nd->m_p_right; return base_type::m_p_head; }