1// -*- C++ -*- 2 3// Copyright (C) 2005-2015 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 41PB_DS_CLASS_T_DEC 42inline typename PB_DS_CLASS_C_DEC::point_iterator 43PB_DS_CLASS_C_DEC:: 44find(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 52PB_DS_CLASS_T_DEC 53inline typename PB_DS_CLASS_C_DEC::point_const_iterator 54PB_DS_CLASS_C_DEC:: 55find(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 63PB_DS_CLASS_T_DEC 64inline typename PB_DS_CLASS_C_DEC::node_pointer 65PB_DS_CLASS_C_DEC:: 66find_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 83PB_DS_CLASS_T_DEC 84inline const typename PB_DS_CLASS_C_DEC::node_pointer 85PB_DS_CLASS_C_DEC:: 86find_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