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 23 template <class _RandomAccessIterator, class _Compare> 24 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 25 is_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 29 template <class _RandomAccessIterator> 30 [[__nodiscard__]] inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 31 is_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