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 entry_cmp.hpp 38 * Contains an implementation class for a binary_heap. 39 */ 40 41 #ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP 42 #define PB_DS_BINARY_HEAP_ENTRY_CMP_HPP 43 44 namespace __gnu_pbds 45 { 46 namespace detail 47 { 48 49 template<typename Value_Type, 50 class Cmp_Fn, 51 bool No_Throw, 52 class Allocator> 53 struct entry_cmp 54 { 55 typedef Cmp_Fn type; 56 }; 57 58 template<typename Value_Type, class Cmp_Fn, class Allocator> 59 struct entry_cmp< 60 Value_Type, 61 Cmp_Fn, 62 false, 63 Allocator> 64 { 65 public: 66 typedef 67 typename Allocator::template rebind< 68 Value_Type>::other::const_pointer 69 entry; 70 71 struct type : public Cmp_Fn 72 { 73 public: 74 inline 75 type() 76 { } 77 78 inline 79 type(const Cmp_Fn& other) : Cmp_Fn(other) 80 { } 81 82 inline bool 83 operator()(entry p_lhs, entry p_rhs) const 84 { 85 return Cmp_Fn::operator()(*p_lhs, * p_rhs); 86 } 87 }; 88 }; 89 90 } // namespace detail 91 } // namespace __gnu_pbds 92 93 #endif // #ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP 94