1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2013 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 splay_tree_/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(key_const_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::point_const_iterator 54 PB_DS_CLASS_C_DEC:: 55 find(key_const_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(key_const_reference r_key) 67 { 68 _GLIBCXX_DEBUG_ONLY(base_type::structure_only_assert_valid(__FILE__, 69 __LINE__);) 70 node_pointer p_nd = base_type::m_p_head->m_p_parent; 71 while (p_nd != 0) 72 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 73 { 74 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 75 return p_nd; 76 p_nd = p_nd->m_p_left; 77 } 78 else 79 p_nd = p_nd->m_p_right; 80 return base_type::m_p_head; 81 } 82 83 PB_DS_CLASS_T_DEC 84 inline const typename PB_DS_CLASS_C_DEC::node_pointer 85 PB_DS_CLASS_C_DEC:: 86 find_imp(key_const_reference r_key) const 87 { 88 PB_DS_ASSERT_VALID((*this)) 89 node_pointer p_nd = base_type::m_p_head->m_p_parent; 90 while (p_nd != 0) 91 if (!Cmp_Fn::operator()(PB_DS_V2F(p_nd->m_value), r_key)) 92 { 93 if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(p_nd->m_value))) 94 return p_nd; 95 p_nd = p_nd->m_p_left; 96 } 97 else 98 p_nd = p_nd->m_p_right; 99 return base_type::m_p_head; 100 } 101
