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-exception 6// 7//===----------------------------------------------------------------------===// 8 9#ifndef _LIBCPP___ALGORITHM_RANGES_MINMAX_ELEMENT_H 10#define _LIBCPP___ALGORITHM_RANGES_MINMAX_ELEMENT_H 11 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#include <type_traits> 27 28#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 29# pragma GCC system_header 30#endif 31 32#if _LIBCPP_STD_VER > 17 33 34_LIBCPP_BEGIN_NAMESPACE_STD 35 36namespace ranges { 37 38template <class _T1> 39using minmax_element_result = min_max_result<_T1>; 40 41namespace __minmax_element { 42struct __fn { 43 template <forward_iterator _Ip, sentinel_for<_Ip> _Sp, class _Proj = identity, 44 indirect_strict_weak_order<projected<_Ip, _Proj>> _Comp = ranges::less> 45 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr 46 ranges::minmax_element_result<_Ip> operator()(_Ip __first, _Sp __last, _Comp __comp = {}, _Proj __proj = {}) const { 47 auto __ret = std::__minmax_element_impl(std::move(__first), std::move(__last), __comp, __proj); 48 return {__ret.first, __ret.second}; 49 } 50 51 template <forward_range _Rp, class _Proj = identity, 52 indirect_strict_weak_order<projected<iterator_t<_Rp>, _Proj>> _Comp = ranges::less> 53 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr 54 ranges::minmax_element_result<borrowed_iterator_t<_Rp>> 55 operator()(_Rp&& __r, _Comp __comp = {}, _Proj __proj = {}) const { 56 auto __ret = std::__minmax_element_impl(ranges::begin(__r), ranges::end(__r), __comp, __proj); 57 return {__ret.first, __ret.second}; 58 } 59}; 60} // namespace __minmax_element 61 62inline namespace __cpo { 63 inline constexpr auto minmax_element = __minmax_element::__fn{}; 64} // namespace __cpo 65 66} // namespace ranges 67 68_LIBCPP_END_NAMESPACE_STD 69 70#endif // _LIBCPP_STD_VER > 17 71 72#endif // _LIBCPP___ALGORITHM_RANGES_MINMAX_H 73