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
17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18# pragma GCC system_header
19#endif
20
21_LIBCPP_BEGIN_NAMESPACE_STD
22
23template <class _RandomAccessIterator, class _Compare>
24[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
25is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) {
26 return std::__is_heap_until(__first, __last, static_cast<__comp_ref_type<_Compare> >(__comp)) == __last;
27}
28
29template <class _RandomAccessIterator>
30[[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool
31is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) {
32 return std::is_heap(__first, __last, __less<>());
33}
34
35_LIBCPP_END_NAMESPACE_STD
36
37#endif // _LIBCPP___ALGORITHM_IS_HEAP_H
38