//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef _LIBCPP___ALGORITHM_MIN_ELEMENT_H #define _LIBCPP___ALGORITHM_MIN_ELEMENT_H #include <__algorithm/comp.h> #include <__algorithm/comp_ref_type.h> #include <__config> #include <__functional/identity.h> #include <__functional/invoke.h> #include <__iterator/iterator_traits.h> #include <__type_traits/is_callable.h> #include <__utility/move.h> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif _LIBCPP_PUSH_MACROS #include <__undef_macros> _LIBCPP_BEGIN_NAMESPACE_STD template <class _Comp, class _Iter, class _Sent, class _Proj> inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Iter __min_element(_Iter __first, _Sent __last, _Comp __comp, _Proj& __proj) { if (__first == __last) return __first; _Iter __i = __first; while (++__i != __last) if (std::__invoke(__comp, std::__invoke(__proj, *__i), std::__invoke(__proj, *__first))) __first = __i; return __first; } template <class _Comp, class _Iter, class _Sent> _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _Iter __min_element(_Iter __first, _Sent __last, _Comp __comp) { auto __proj = __identity(); return std::__min_element<_Comp>(std::move(__first), std::move(__last), __comp, __proj); } template <class _ForwardIterator, class _Compare> _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _ForwardIterator min_element(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) { static_assert(__has_forward_iterator_category<_ForwardIterator>::value, "std::min_element requires a ForwardIterator"); static_assert(__is_callable<_Compare, decltype(*__first), decltype(*__first)>::value, "The comparator has to be callable"); return std::__min_element<__comp_ref_type<_Compare> >(std::move(__first), std::move(__last), __comp); } template <class _ForwardIterator> _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 _ForwardIterator min_element(_ForwardIterator __first, _ForwardIterator __last) { return _VSTD::min_element(__first, __last, __less<>()); } _LIBCPP_END_NAMESPACE_STD _LIBCPP_POP_MACROS #endif // _LIBCPP___ALGORITHM_MIN_ELEMENT_H