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_H 10 #define _LIBCPP___ALGORITHM_IS_SORTED_H 11 12 #include <__algorithm/comp.h> 13 #include <__algorithm/comp_ref_type.h> 14 #include <__algorithm/is_sorted_until.h> 15 #include <__config> 16 #include <__iterator/iterator_traits.h> 17 18 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19 # pragma GCC system_header 20 # pragma clang include_instead(<algorithm>) 21 #endif 22 23 _LIBCPP_BEGIN_NAMESPACE_STD 24 25 template <class _ForwardIterator, class _Compare> 26 _LIBCPP_NODISCARD_EXT inline 27 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 28 bool 29 is_sorted(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) 30 { 31 typedef typename __comp_ref_type<_Compare>::type _Comp_ref; 32 return _VSTD::__is_sorted_until<_Comp_ref>(__first, __last, __comp) == __last; 33 } 34 35 template<class _ForwardIterator> 36 _LIBCPP_NODISCARD_EXT inline 37 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 38 bool 39 is_sorted(_ForwardIterator __first, _ForwardIterator __last) 40 { 41 return _VSTD::is_sorted(__first, __last, __less<typename iterator_traits<_ForwardIterator>::value_type>()); 42 } 43 44 _LIBCPP_END_NAMESPACE_STD 45 46 #endif // _LIBCPP___ALGORITHM_IS_SORTED_H 47