libstdc++
entry_cmp.hpp
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// -*- C++ -*-
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// Copyright (C) 2005-2024 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// warranty.
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/**
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* @file binary_heap_/entry_cmp.hpp
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* Contains an implementation class for a binary_heap.
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*/
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#ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP
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#define PB_DS_BINARY_HEAP_ENTRY_CMP_HPP
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namespace
__gnu_pbds
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{
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namespace
detail
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{
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/// Entry compare, primary template.
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template
<
typename
_VTp,
typename
Cmp_Fn,
typename
_Alloc,
bool
No_Throw>
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struct
entry_cmp
;
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/// Specialization, true.
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template
<
typename
_VTp,
typename
Cmp_Fn,
typename
_Alloc>
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struct
entry_cmp
<_VTp, Cmp_Fn, _Alloc, true>
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{
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/// Compare.
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typedef
Cmp_Fn
type
;
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};
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/// Specialization, false.
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template
<
typename
_VTp,
typename
Cmp_Fn,
typename
_Alloc>
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struct
entry_cmp
<_VTp, Cmp_Fn, _Alloc, false>
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{
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private
:
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typedef
rebind_traits<_Alloc, _VTp>
__rebind_v
;
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public
:
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typedef
typename
__rebind_v::const_pointer entry;
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/// Compare plus entry.
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struct
type
:
public
Cmp_Fn
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{
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type
() { }
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type
(
const
Cmp_Fn& other) : Cmp_Fn(other) { }
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bool
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operator()(entry lhs, entry rhs)
const
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{
return
Cmp_Fn::operator()(*lhs, *rhs); }
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};
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};
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}
// namespace detail
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}
// namespace __gnu_pbds
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#endif
// #ifndef PB_DS_BINARY_HEAP_ENTRY_CMP_HPP
__gnu_pbds
GNU extensions for policy-based data structures for public use.
Definition
assoc_container.hpp:52
__gnu_pbds::detail::rebind_traits
Consistent API for accessing allocator-related types.
Definition
types_traits.hpp:140
__gnu_pbds::detail::entry_cmp
Entry compare, primary template.
Definition
entry_cmp.hpp:50
__gnu_pbds::detail::entry_cmp< _VTp, Cmp_Fn, _Alloc, true >::type
Cmp_Fn type
Compare.
Definition
entry_cmp.hpp:57
__gnu_pbds::detail::entry_cmp< _VTp, Cmp_Fn, _Alloc, false >::type
Compare plus entry.
Definition
entry_cmp.hpp:72
ext
pb_ds
detail
binary_heap_
entry_cmp.hpp
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