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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___CXX03___ALGORITHM_SORT_HEAP_H |
10 | #define _LIBCPP___CXX03___ALGORITHM_SORT_HEAP_H |
11 | |
12 | #include <__cxx03/__algorithm/comp.h> |
13 | #include <__cxx03/__algorithm/comp_ref_type.h> |
14 | #include <__cxx03/__algorithm/iterator_operations.h> |
15 | #include <__cxx03/__algorithm/pop_heap.h> |
16 | #include <__cxx03/__config> |
17 | #include <__cxx03/__debug_utils/strict_weak_ordering_check.h> |
18 | #include <__cxx03/__iterator/iterator_traits.h> |
19 | #include <__cxx03/__type_traits/is_assignable.h> |
20 | #include <__cxx03/__type_traits/is_constructible.h> |
21 | #include <__cxx03/__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 <__cxx03/__undef_macros> |
29 | |
30 | _LIBCPP_BEGIN_NAMESPACE_STD |
31 | |
32 | template <class _AlgPolicy, class _Compare, class _RandomAccessIterator> |
33 | inline _LIBCPP_HIDE_FROM_ABI 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 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 void sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last) { |
55 | std::sort_heap(std::move(__first), std::move(__last), __less<>()); |
56 | } |
57 | |
58 | _LIBCPP_END_NAMESPACE_STD |
59 | |
60 | _LIBCPP_POP_MACROS |
61 | |
62 | #endif // _LIBCPP___CXX03___ALGORITHM_SORT_HEAP_H |
63 |
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