Pirama Arumuga Nainar | d285ad0 | 2022-02-08 09:26:56 -0800 | [diff] [blame] | 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_MIN_ELEMENT_H |
| 10 | #define _LIBCPP___ALGORITHM_MIN_ELEMENT_H |
| 11 | |
| 12 | #include <__config> |
| 13 | #include <__algorithm/comp.h> |
| 14 | #include <__algorithm/comp_ref_type.h> |
| 15 | #include <__iterator/iterator_traits.h> |
| 16 | |
| 17 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 18 | #pragma GCC system_header |
| 19 | #endif |
| 20 | |
| 21 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 22 | |
| 23 | template <class _Compare, class _ForwardIterator> |
| 24 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator |
| 25 | __min_element(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) |
| 26 | { |
| 27 | static_assert(__is_cpp17_forward_iterator<_ForwardIterator>::value, |
| 28 | "std::min_element requires a ForwardIterator"); |
| 29 | if (__first != __last) |
| 30 | { |
| 31 | _ForwardIterator __i = __first; |
| 32 | while (++__i != __last) |
| 33 | if (__comp(*__i, *__first)) |
| 34 | __first = __i; |
| 35 | } |
| 36 | return __first; |
| 37 | } |
| 38 | |
| 39 | template <class _ForwardIterator, class _Compare> |
| 40 | _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator |
| 41 | min_element(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) |
| 42 | { |
| 43 | typedef typename __comp_ref_type<_Compare>::type _Comp_ref; |
| 44 | return _VSTD::__min_element<_Comp_ref>(__first, __last, __comp); |
| 45 | } |
| 46 | |
| 47 | template <class _ForwardIterator> |
| 48 | _LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator |
| 49 | min_element(_ForwardIterator __first, _ForwardIterator __last) |
| 50 | { |
| 51 | return _VSTD::min_element(__first, __last, |
| 52 | __less<typename iterator_traits<_ForwardIterator>::value_type>()); |
| 53 | } |
| 54 | |
| 55 | _LIBCPP_END_NAMESPACE_STD |
| 56 | |
| 57 | #endif // _LIBCPP___ALGORITHM_MIN_ELEMENT_H |