1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006, 2009 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27 // Permission to use, copy, modify, sell, and distribute this software 28 // is hereby granted without fee, provided that the above copyright 29 // notice appears in all copies, and that both that copyright notice 30 // and this permission notice appear in supporting documentation. None 31 // of the above authors, nor IBM Haifa Research Laboratories, make any 32 // representation about the suitability of this software for any 33 // purpose. It is provided "as is" without express or implied 34 // warranty. 35 36 /** 37 * @file find_fn_imps.hpp 38 * Contains an implementation class for splay_tree_. 39 */ 40 41 PB_DS_CLASS_T_DEC 42 inline typename PB_DS_CLASS_C_DEC::point_iterator 43 PB_DS_CLASS_C_DEC:: 44 find(const_key_reference r_key) 45 { 46 node_pointer p_found = find_imp(r_key); 47 if (p_found != base_type::m_p_head) 48 splay(p_found); 49 return point_iterator(p_found); 50 } 51 52 PB_DS_CLASS_T_DEC 53 inline typename PB_DS_CLASS_C_DEC::const_point_iterator 54 PB_DS_CLASS_C_DEC:: 55 find(const_key_reference r_key) const 56 { 57 const node_pointer p_found = find_imp(r_key); 58 if (p_found != base_type::m_p_head) 59 const_cast<PB_DS_CLASS_C_DEC* >(this)->splay(p_found); 60 return point_iterator(p_found); 61 } 62 63 PB_DS_CLASS_T_DEC 64 inline typename PB_DS_CLASS_C_DEC::node_pointer 65 PB_DS_CLASS_C_DEC:: 66 find_imp(const_key_reference r_key) 67 { 68 _GLIBCXX_DEBUG_ONLY(base_type::structure_only_assert_valid();) 69 node_pointer p_nd = base_type::m_p_head->m_p_parent; 70 while (p_nd != NULL) 71 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 72 { 73 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 74 return p_nd; 75 p_nd = p_nd->m_p_left; 76 } 77 else 78 p_nd = p_nd->m_p_right; 79 return base_type::m_p_head; 80 } 81 82 PB_DS_CLASS_T_DEC 83 inline const typename PB_DS_CLASS_C_DEC::node_pointer 84 PB_DS_CLASS_C_DEC:: 85 find_imp(const_key_reference r_key) const 86 { 87 _GLIBCXX_DEBUG_ONLY(assert_valid();) 88 node_pointer p_nd = base_type::m_p_head->m_p_parent; 89 while (p_nd != NULL) 90 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 91 { 92 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 93 return p_nd; 94 p_nd = p_nd->m_p_left; 95 } 96 else 97 p_nd = p_nd->m_p_right; 98 return base_type::m_p_head; 99 } 100
