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b07b5bd727
This is not mandated by the standard, so it goes in libcxx/test/libcxx/. It's certainly arguable that the algorithms changed here (`is_heap`, `is_sorted`, `min`, `max`) are harmless and we should just let them copy their comparators once. But at the same time, it's nice to have all our algorithms be 100% consistent and never copy a comparator, not even once. Differential Revision: https://reviews.llvm.org/D114136
73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_MAX_H
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#define _LIBCPP___ALGORITHM_MAX_H
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#include <__config>
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#include <__algorithm/comp.h>
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#include <__algorithm/comp_ref_type.h>
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#include <__algorithm/max_element.h>
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#include <initializer_list>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp, class _Compare>
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_LIBCPP_NODISCARD_EXT inline
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
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const _Tp&
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max(const _Tp& __a, const _Tp& __b, _Compare __comp)
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{
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return __comp(__a, __b) ? __b : __a;
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}
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template <class _Tp>
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_LIBCPP_NODISCARD_EXT inline
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
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const _Tp&
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max(const _Tp& __a, const _Tp& __b)
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{
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return _VSTD::max(__a, __b, __less<_Tp>());
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}
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#ifndef _LIBCPP_CXX03_LANG
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template<class _Tp, class _Compare>
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_LIBCPP_NODISCARD_EXT inline
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
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_Tp
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max(initializer_list<_Tp> __t, _Compare __comp)
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{
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typedef typename __comp_ref_type<_Compare>::type _Comp_ref;
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return *_VSTD::__max_element<_Comp_ref>(__t.begin(), __t.end(), __comp);
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}
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template<class _Tp>
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_LIBCPP_NODISCARD_EXT inline
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_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
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_Tp
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max(initializer_list<_Tp> __t)
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{
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return *_VSTD::max_element(__t.begin(), __t.end(), __less<_Tp>());
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}
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_MAX_H
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