3 // Copyright (C) 2005-2022 Free Software Foundation, Inc.
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
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.
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.
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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/>.
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
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37 * @file binary_heap_/entry_cmp.hpp
38 * Contains an implementation class for a binary_heap.
41 #ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP
42 #define PB_DS_BINARY_HEAP_ENTRY_CMP_HPP
48 /// Entry compare, primary template.
49 template<typename _VTp, typename Cmp_Fn, typename _Alloc, bool No_Throw>
52 /// Specialization, true.
53 template<typename _VTp, typename Cmp_Fn, typename _Alloc>
54 struct entry_cmp<_VTp, Cmp_Fn, _Alloc, true>
60 /// Specialization, false.
61 template<typename _VTp, typename Cmp_Fn, typename _Alloc>
62 struct entry_cmp<_VTp, Cmp_Fn, _Alloc, false>
65 typedef rebind_traits<_Alloc, _VTp> __rebind_v;
68 typedef typename __rebind_v::const_pointer entry;
70 /// Compare plus entry.
71 struct type : public Cmp_Fn
75 type(const Cmp_Fn& other) : Cmp_Fn(other) { }
78 operator()(entry lhs, entry rhs) const
79 { return Cmp_Fn::operator()(*lhs, *rhs); }
83 } // namespace __gnu_pbds
85 #endif // #ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP