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_PUSH_MACROS 22 #include <__undef_macros> 23 24 _LIBCPP_BEGIN_NAMESPACE_STD 25 26 template <class _RandomAccessIterator, class _Compare> 27 _LIBCPP_NODISCARD_EXT inline 28 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 29 bool 30 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) 31 { 32 return _VSTD::is_heap_until(__first, __last, __comp) == __last; 33 } 34 35 template<class _RandomAccessIterator> 36 _LIBCPP_NODISCARD_EXT inline 37 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 38 bool 39 is_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) 40 { 41 return _VSTD::is_heap(__first, __last, __less<typename iterator_traits<_RandomAccessIterator>::value_type>()); 42 } 43 44 _LIBCPP_END_NAMESPACE_STD 45 46 _LIBCPP_POP_MACROS 47 48 #endif // _LIBCPP___ALGORITHM_IS_HEAP_H 49