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 <__config> 13 #include <__algorithm/comp.h> 14 #include <__algorithm/is_heap_until.h> 15 #include <__iterator/iterator_traits.h> 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 _LIBCPP_NODISCARD_EXT inline 25 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 26 bool 27 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) 28 { 29 return _VSTD::is_heap_until(__first, __last, __comp) == __last; 30 } 31 32 template<class _RandomAccessIterator> 33 _LIBCPP_NODISCARD_EXT inline 34 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 35 bool 36 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) 37 { 38 return _VSTD::is_heap(__first, __last, __less<typename iterator_traits<_RandomAccessIterator>::value_type>()); 39 } 40 41 _LIBCPP_END_NAMESPACE_STD 42 43 #endif // _LIBCPP___ALGORITHM_IS_HEAP_H 44