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_IS_SORTED_UNTIL_H 10 #define _LIBCPP___ALGORITHM_IS_SORTED_UNTIL_H 11 12 #include <__algorithm/comp.h> 13 #include <__algorithm/comp_ref_type.h> 14 #include <__config> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 template <class _Compare, class _ForwardIterator> 23 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator 24 __is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) { 25 if (__first != __last) { 26 _ForwardIterator __i = __first; 27 while (++__i != __last) { 28 if (__comp(*__i, *__first)) 29 return __i; 30 __first = __i; 31 } 32 } 33 return __last; 34 } 35 36 template <class _ForwardIterator, class _Compare> 37 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator 38 is_sorted_until(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) { 39 return std::__is_sorted_until<__comp_ref_type<_Compare> >(__first, __last, __comp); 40 } 41 42 template <class _ForwardIterator> 43 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator 44 is_sorted_until(_ForwardIterator __first, _ForwardIterator __last) { 45 return std::is_sorted_until(__first, __last, __less<>()); 46 } 47 48 _LIBCPP_END_NAMESPACE_STD 49 50 #endif // _LIBCPP___ALGORITHM_IS_SORTED_UNTIL_H 51