1// -*- C++ -*- 2 3// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the terms 7// of the GNU General Public License as published by the Free Software 8// Foundation; either version 2, or (at your option) any later 9// version. 10 11// This library is distributed in the hope that it will be useful, but 12// WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14// General Public License for more details. 15 16// You should have received a copy of the GNU General Public License 17// along with this library; see the file COPYING. If not, write to 18// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19// MA 02111-1307, USA. 20 21// As a special exception, you may use this file as part of a free 22// software library without restriction. Specifically, if other files 23// instantiate templates or use macros or inline functions from this 24// file, or you compile this file and link it with other files to 25// produce an executable, this file does not by itself cause the 26// resulting executable to be covered by the GNU General Public 27// License. This exception does not however invalidate any other 28// reasons why the executable file might be covered by the GNU General 29// Public License. 30 31// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33// Permission to use, copy, modify, sell, and distribute this software 34// is hereby granted without fee, provided that the above copyright 35// notice appears in all copies, and that both that copyright notice 36// and this permission notice appear in supporting documentation. None 37// of the above authors, nor IBM Haifa Research Laboratories, make any 38// representation about the suitability of this software for any 39// purpose. It is provided "as is" without express or implied 40// warranty. 41 42/** 43 * @file find_fn_imps.hpp 44 * Contains an implementation class for splay_tree_. 45 */ 46 47PB_DS_CLASS_T_DEC 48inline typename PB_DS_CLASS_C_DEC::point_iterator 49PB_DS_CLASS_C_DEC:: 50find(const_key_reference r_key) 51{ 52 node_pointer p_found = find_imp(r_key); 53 if (p_found != base_type::m_p_head) 54 splay(p_found); 55 return point_iterator(p_found); 56} 57 58PB_DS_CLASS_T_DEC 59inline typename PB_DS_CLASS_C_DEC::const_point_iterator 60PB_DS_CLASS_C_DEC:: 61find(const_key_reference r_key) const 62{ 63 const node_pointer p_found = find_imp(r_key); 64 if (p_found != base_type::m_p_head) 65 const_cast<PB_DS_CLASS_C_DEC* >(this)->splay(p_found); 66 return point_iterator(p_found); 67} 68 69PB_DS_CLASS_T_DEC 70inline typename PB_DS_CLASS_C_DEC::node_pointer 71PB_DS_CLASS_C_DEC:: 72find_imp(const_key_reference r_key) 73{ 74 _GLIBCXX_DEBUG_ONLY(base_type::structure_only_assert_valid();) 75 node_pointer p_nd = base_type::m_p_head->m_p_parent; 76 while (p_nd != NULL) 77 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 78 { 79 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 80 return p_nd; 81 p_nd = p_nd->m_p_left; 82 } 83 else 84 p_nd = p_nd->m_p_right; 85 return base_type::m_p_head; 86} 87 88PB_DS_CLASS_T_DEC 89inline const typename PB_DS_CLASS_C_DEC::node_pointer 90PB_DS_CLASS_C_DEC:: 91find_imp(const_key_reference r_key) const 92{ 93 _GLIBCXX_DEBUG_ONLY(assert_valid();) 94 node_pointer p_nd = base_type::m_p_head->m_p_parent; 95 while (p_nd != NULL) 96 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 97 { 98 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 99 return p_nd; 100 p_nd = p_nd->m_p_left; 101 } 102 else 103 p_nd = p_nd->m_p_right; 104 return base_type::m_p_head; 105} 106