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 a binary_heap. 39 */ 40 41 PB_DS_CLASS_T_DEC 42 inline typename PB_DS_CLASS_C_DEC::const_reference 43 PB_DS_CLASS_C_DEC:: 44 top() const 45 { 46 _GLIBCXX_DEBUG_ONLY(assert_valid();) 47 _GLIBCXX_DEBUG_ASSERT(!empty()); 48 49 return top_imp(s_no_throw_copies_ind); 50 } 51 52 PB_DS_CLASS_T_DEC 53 inline typename PB_DS_CLASS_C_DEC::const_reference 54 PB_DS_CLASS_C_DEC:: 55 top_imp(true_type) const 56 { 57 return* m_a_entries; 58 } 59 60 PB_DS_CLASS_T_DEC 61 inline typename PB_DS_CLASS_C_DEC::const_reference 62 PB_DS_CLASS_C_DEC:: 63 top_imp(false_type) const 64 { 65 return** m_a_entries; 66 } 67 68 PB_DS_CLASS_T_DEC 69 inline typename PB_DS_CLASS_C_DEC::size_type 70 PB_DS_CLASS_C_DEC:: 71 left_child(size_type i) 72 { 73 return i* 2 + 1; 74 } 75 76 PB_DS_CLASS_T_DEC 77 inline typename PB_DS_CLASS_C_DEC::size_type 78 PB_DS_CLASS_C_DEC:: 79 right_child(size_type i) 80 { 81 return i* 2 + 2; 82 } 83 84 PB_DS_CLASS_T_DEC 85 inline typename PB_DS_CLASS_C_DEC::size_type 86 PB_DS_CLASS_C_DEC:: 87 parent(size_type i) 88 { 89 return (i - 1) / 2; 90 } 91 92
