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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___ALGORITHM_RANGES_MINMAX_ELEMENT_H10#define _LIBCPP___ALGORITHM_RANGES_MINMAX_ELEMENT_H11 12#include <__algorithm/min_max_result.h>13#include <__algorithm/minmax_element.h>14#include <__config>15#include <__functional/identity.h>16#include <__functional/invoke.h>17#include <__functional/ranges_operations.h>18#include <__iterator/concepts.h>19#include <__iterator/projected.h>20#include <__ranges/access.h>21#include <__ranges/concepts.h>22#include <__ranges/dangling.h>23#include <__utility/forward.h>24#include <__utility/move.h>25#include <__utility/pair.h>26 27#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)28# pragma GCC system_header29#endif30 31_LIBCPP_PUSH_MACROS32#include <__undef_macros>33 34#if _LIBCPP_STD_VER >= 2035 36_LIBCPP_BEGIN_NAMESPACE_STD37 38namespace ranges {39 40template <class _T1>41using minmax_element_result = min_max_result<_T1>;42 43struct __minmax_element {44 template <forward_iterator _Ip,45 sentinel_for<_Ip> _Sp,46 class _Proj = identity,47 indirect_strict_weak_order<projected<_Ip, _Proj>> _Comp = ranges::less>48 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr ranges::minmax_element_result<_Ip>49 operator()(_Ip __first, _Sp __last, _Comp __comp = {}, _Proj __proj = {}) const {50 auto __ret = std::__minmax_element_impl(std::move(__first), std::move(__last), __comp, __proj);51 return {__ret.first, __ret.second};52 }53 54 template <forward_range _Rp,55 class _Proj = identity,56 indirect_strict_weak_order<projected<iterator_t<_Rp>, _Proj>> _Comp = ranges::less>57 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr ranges::minmax_element_result<borrowed_iterator_t<_Rp>>58 operator()(_Rp&& __r, _Comp __comp = {}, _Proj __proj = {}) const {59 auto __ret = std::__minmax_element_impl(ranges::begin(__r), ranges::end(__r), __comp, __proj);60 return {__ret.first, __ret.second};61 }62};63 64inline namespace __cpo {65inline constexpr auto minmax_element = __minmax_element{};66} // namespace __cpo67 68} // namespace ranges69 70_LIBCPP_END_NAMESPACE_STD71 72#endif // _LIBCPP_STD_VER >= 2073 74_LIBCPP_POP_MACROS75 76#endif // _LIBCPP___ALGORITHM_RANGES_MINMAX_H77