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 #endif
21
22 _LIBCPP_BEGIN_NAMESPACE_STD
23
24 template <class _ForwardIterator, class _Compare>
25 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
is_sorted(_ForwardIterator __first,_ForwardIterator __last,_Compare __comp)26 is_sorted(_ForwardIterator __first, _ForwardIterator __last, _Compare __comp) {
27 return std::__is_sorted_until<__comp_ref_type<_Compare> >(__first, __last, __comp) == __last;
28 }
29
30 template <class _ForwardIterator>
31 _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
is_sorted(_ForwardIterator __first,_ForwardIterator __last)32 is_sorted(_ForwardIterator __first, _ForwardIterator __last) {
33 return std::is_sorted(__first, __last, __less<>());
34 }
35
36 _LIBCPP_END_NAMESPACE_STD
37
38 #endif // _LIBCPP___ALGORITHM_IS_SORTED_H
39