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_HEAP_H
10#define _LIBCPP___ALGORITHM_IS_HEAP_H
11
12#include <__algorithm/comp.h>
13#include <__algorithm/comp_ref_type.h>
14#include <__algorithm/is_heap_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
24template <class _RandomAccessIterator, class _Compare>
25_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
26is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) {
27 return std::__is_heap_until(__first, __last, static_cast<__comp_ref_type<_Compare> >(__comp)) == __last;
28}
29
30template <class _RandomAccessIterator>
31_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
32is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) {
33 return std::is_heap(__first, __last, __less<>());
34}
35
36_LIBCPP_END_NAMESPACE_STD
37
38#endif // _LIBCPP___ALGORITHM_IS_HEAP_H
39