3 // Copyright (C) 2005-2018 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.
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/>.
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
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
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 typename
_Alloc::template rebind
<_VTp
> __rebind_v
;
68 typedef typename
__rebind_v::other::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