mirror of
https://github.com/capstone-engine/llvm-capstone.git
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368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
96 lines
2.6 KiB
C++
96 lines
2.6 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_MINMAX_H
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#define _LIBCPP___ALGORITHM_MINMAX_H
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#include <__algorithm/comp.h>
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#include <__config>
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#include <__utility/pair.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_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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pair<const _Tp&, const _Tp&>
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minmax(const _Tp& __a, const _Tp& __b, _Compare __comp)
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{
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return __comp(__b, __a) ? pair<const _Tp&, const _Tp&>(__b, __a) :
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pair<const _Tp&, const _Tp&>(__a, __b);
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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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pair<const _Tp&, const _Tp&>
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minmax(const _Tp& __a, const _Tp& __b)
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{
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return _VSTD::minmax(__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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pair<_Tp, _Tp>
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minmax(initializer_list<_Tp> __t, _Compare __comp)
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{
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typedef typename initializer_list<_Tp>::const_iterator _Iter;
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_Iter __first = __t.begin();
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_Iter __last = __t.end();
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pair<_Tp, _Tp> __result(*__first, *__first);
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++__first;
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if (__t.size() % 2 == 0)
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{
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if (__comp(*__first, __result.first))
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__result.first = *__first;
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else
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__result.second = *__first;
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++__first;
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}
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while (__first != __last)
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{
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_Tp __prev = *__first++;
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if (__comp(*__first, __prev)) {
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if ( __comp(*__first, __result.first)) __result.first = *__first;
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if (!__comp(__prev, __result.second)) __result.second = __prev;
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}
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else {
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if ( __comp(__prev, __result.first)) __result.first = __prev;
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if (!__comp(*__first, __result.second)) __result.second = *__first;
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}
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__first++;
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}
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return __result;
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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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pair<_Tp, _Tp>
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minmax(initializer_list<_Tp> __t)
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{
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return _VSTD::minmax(__t, __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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#endif // _LIBCPP___ALGORITHM_MINMAX_H
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