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| 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_SORT_HEAP_H |
| 10 | #define _LIBCPP___ALGORITHM_SORT_HEAP_H |
| 11 | |
| 12 | #include <__algorithm/comp.h> |
| 13 | #include <__algorithm/comp_ref_type.h> |
| 14 | #include <__algorithm/iterator_operations.h> |
| 15 | #include <__algorithm/pop_heap.h> |
| 16 | #include <__config> |
| 17 | #include <__debug_utils/strict_weak_ordering_check.h> |
| 18 | #include <__iterator/iterator_traits.h> |
| 19 | #include <__type_traits/is_assignable.h> |
| 20 | #include <__type_traits/is_constructible.h> |
| 21 | #include <__utility/move.h> |
| 22 | |
| 23 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 24 | # pragma GCC system_header |
| 25 | #endif |
| 26 | |
| 27 | _LIBCPP_PUSH_MACROS |
| 28 | #include <__undef_macros> |
| 29 | |
| 30 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 31 | |
| 32 | template <class _AlgPolicy, class _Compare, class _RandomAccessIterator> |
| 33 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void |
| 34 | __sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare&& __comp) { |
| 35 | _RandomAccessIterator __saved_last = __last; |
| 36 | __comp_ref_type<_Compare> __comp_ref = __comp; |
| 37 | |
| 38 | using difference_type = typename iterator_traits<_RandomAccessIterator>::difference_type; |
| 39 | for (difference_type __n = __last - __first; __n > 1; --__last, (void)--__n) |
| 40 | std::__pop_heap<_AlgPolicy>(__first, __last, __comp_ref, __n); |
| 41 | std::__check_strict_weak_ordering_sorted(__first, __saved_last, __comp_ref); |
| 42 | } |
| 43 | |
| 44 | template <class _RandomAccessIterator, class _Compare> |
| 45 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void |
| 46 | sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp) { |
| 47 | static_assert(std::is_copy_constructible<_RandomAccessIterator>::value, "Iterators must be copy constructible."); |
| 48 | static_assert(std::is_copy_assignable<_RandomAccessIterator>::value, "Iterators must be copy assignable."); |
| 49 | |
| 50 | std::__sort_heap<_ClassicAlgPolicy>(std::move(__first), std::move(__last), __comp); |
| 51 | } |
| 52 | |
| 53 | template <class _RandomAccessIterator> |
| 54 | inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void |
| 55 | sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) { |
| 56 | std::sort_heap(std::move(__first), std::move(__last), __less<>()); |
| 57 | } |
| 58 | |
| 59 | _LIBCPP_END_NAMESPACE_STD |
| 60 | |
| 61 | _LIBCPP_POP_MACROS |
| 62 | |
| 63 | #endif // _LIBCPP___ALGORITHM_SORT_HEAP_H |
| 64 |
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