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 a binary_heap. 45 */ 46 47 PB_DS_CLASS_T_DEC 48 inline typename PB_DS_CLASS_C_DEC::const_reference 49 PB_DS_CLASS_C_DEC:: 50 top() const 51 { 52 _GLIBCXX_DEBUG_ONLY(assert_valid();) 53 _GLIBCXX_DEBUG_ASSERT(!empty()); 54 55 return top_imp(s_no_throw_copies_ind); 56 } 57 58 PB_DS_CLASS_T_DEC 59 inline typename PB_DS_CLASS_C_DEC::const_reference 60 PB_DS_CLASS_C_DEC:: 61 top_imp(true_type) const 62 { 63 return* m_a_entries; 64 } 65 66 PB_DS_CLASS_T_DEC 67 inline typename PB_DS_CLASS_C_DEC::const_reference 68 PB_DS_CLASS_C_DEC:: 69 top_imp(false_type) const 70 { 71 return** m_a_entries; 72 } 73 74 PB_DS_CLASS_T_DEC 75 inline typename PB_DS_CLASS_C_DEC::size_type 76 PB_DS_CLASS_C_DEC:: 77 left_child(size_type i) 78 { 79 return i* 2 + 1; 80 } 81 82 PB_DS_CLASS_T_DEC 83 inline typename PB_DS_CLASS_C_DEC::size_type 84 PB_DS_CLASS_C_DEC:: 85 right_child(size_type i) 86 { 87 return i* 2 + 2; 88 } 89 90 PB_DS_CLASS_T_DEC 91 inline typename PB_DS_CLASS_C_DEC::size_type 92 PB_DS_CLASS_C_DEC:: 93 parent(size_type i) 94 { 95 return (i - 1) / 2; 96 } 97 98