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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___CXX03___ALGORITHM_MAX_ELEMENT_H10#define _LIBCPP___CXX03___ALGORITHM_MAX_ELEMENT_H11 12#include <__cxx03/__algorithm/comp.h>13#include <__cxx03/__algorithm/comp_ref_type.h>14#include <__cxx03/__config>15#include <__cxx03/__iterator/iterator_traits.h>16 17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)18# pragma GCC system_header19#endif20 21_LIBCPP_BEGIN_NAMESPACE_STD22 23template <class _Compare, class _ForwardIterator>24inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator25__max_element(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) {26 static_assert(27 __has_forward_iterator_category<_ForwardIterator>::value, "std::max_element requires a ForwardIterator");28 if (__first != __last) {29 _ForwardIterator __i = __first;30 while (++__i != __last)31 if (__comp(*__first, *__i))32 __first = __i;33 }34 return __first;35}36 37template <class _ForwardIterator, class _Compare>38_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator39max_element(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) {40 return std::__max_element<__comp_ref_type<_Compare> >(__first, __last, __comp);41}42 43template <class _ForwardIterator>44_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _ForwardIterator45max_element(_ForwardIterator __first, _ForwardIterator __last) {46 return std::max_element(__first, __last, __less<>());47}48 49_LIBCPP_END_NAMESPACE_STD50 51#endif // _LIBCPP___CXX03___ALGORITHM_MAX_ELEMENT_H52