blob eccf54c0 (2786B) - Raw
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_RANGES_POP_HEAP_H 10 #define _LIBCPP___ALGORITHM_RANGES_POP_HEAP_H 11 12 #include <__algorithm/iterator_operations.h> 13 #include <__algorithm/make_projected.h> 14 #include <__algorithm/pop_heap.h> 15 #include <__concepts/same_as.h> 16 #include <__config> 17 #include <__functional/identity.h> 18 #include <__functional/invoke.h> 19 #include <__functional/ranges_operations.h> 20 #include <__iterator/concepts.h> 21 #include <__iterator/iterator_traits.h> 22 #include <__iterator/next.h> 23 #include <__iterator/projected.h> 24 #include <__iterator/sortable.h> 25 #include <__ranges/access.h> 26 #include <__ranges/concepts.h> 27 #include <__ranges/dangling.h> 28 #include <__utility/forward.h> 29 #include <__utility/move.h> 30 31 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 32 # pragma GCC system_header 33 #endif 34 35 _LIBCPP_PUSH_MACROS 36 #include <__undef_macros> 37 38 #if _LIBCPP_STD_VER >= 20 39 40 _LIBCPP_BEGIN_NAMESPACE_STD 41 42 namespace ranges { 43 struct __pop_heap { 44 template <class _Iter, class _Sent, class _Comp, class _Proj> 45 _LIBCPP_HIDE_FROM_ABI constexpr static _Iter 46 __pop_heap_fn_impl(_Iter __first, _Sent __last, _Comp& __comp, _Proj& __proj) { 47 auto __last_iter = ranges::next(__first, __last); 48 auto __len = __last_iter - __first; 49 50 auto&& __projected_comp = std::__make_projected(__comp, __proj); 51 std::__pop_heap<_RangeAlgPolicy>(std::move(__first), __last_iter, __projected_comp, __len); 52 53 return __last_iter; 54 } 55 56 template <random_access_iterator _Iter, sentinel_for<_Iter> _Sent, class _Comp = ranges::less, class _Proj = identity> 57 requires sortable<_Iter, _Comp, _Proj> 58 _LIBCPP_HIDE_FROM_ABI constexpr _Iter 59 operator()(_Iter __first, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const { 60 return __pop_heap_fn_impl(std::move(__first), std::move(__last), __comp, __proj); 61 } 62 63 template <random_access_range _Range, class _Comp = ranges::less, class _Proj = identity> 64 requires sortable<iterator_t<_Range>, _Comp, _Proj> 65 _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range> 66 operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const { 67 return __pop_heap_fn_impl(ranges::begin(__r), ranges::end(__r), __comp, __proj); 68 } 69 }; 70 71 inline namespace __cpo { 72 inline constexpr auto pop_heap = __pop_heap{}; 73 } // namespace __cpo 74 } // namespace ranges 75 76 _LIBCPP_END_NAMESPACE_STD 77 78 #endif // _LIBCPP_STD_VER >= 20 79 80 _LIBCPP_POP_MACROS 81 82 #endif // _LIBCPP___ALGORITHM_RANGES_POP_HEAP_H