| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H |
| #define _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H |
| |
| #include <__algorithm/inplace_merge.h> |
| #include <__algorithm/iterator_operations.h> |
| #include <__algorithm/make_projected.h> |
| #include <__config> |
| #include <__functional/identity.h> |
| #include <__functional/invoke.h> |
| #include <__functional/ranges_operations.h> |
| #include <__iterator/concepts.h> |
| #include <__iterator/iterator_traits.h> |
| #include <__iterator/next.h> |
| #include <__iterator/projected.h> |
| #include <__iterator/sortable.h> |
| #include <__ranges/access.h> |
| #include <__ranges/concepts.h> |
| #include <__ranges/dangling.h> |
| #include <__utility/forward.h> |
| #include <__utility/move.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| #if _LIBCPP_STD_VER >= 20 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace ranges { |
| namespace __inplace_merge { |
| |
| struct __fn { |
| template <class _Iter, class _Sent, class _Comp, class _Proj> |
| _LIBCPP_HIDE_FROM_ABI static constexpr auto |
| __inplace_merge_impl(_Iter __first, _Iter __middle, _Sent __last, _Comp&& __comp, _Proj&& __proj) { |
| auto __last_iter = ranges::next(__middle, __last); |
| std::__inplace_merge<_RangeAlgPolicy>( |
| std::move(__first), std::move(__middle), __last_iter, std::__make_projected(__comp, __proj)); |
| return __last_iter; |
| } |
| |
| template < |
| bidirectional_iterator _Iter, |
| sentinel_for<_Iter> _Sent, |
| class _Comp = ranges::less, |
| class _Proj = identity> |
| requires sortable<_Iter, _Comp, _Proj> |
| _LIBCPP_HIDE_FROM_ABI _Iter |
| operator()(_Iter __first, _Iter __middle, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const { |
| return __inplace_merge_impl( |
| std::move(__first), std::move(__middle), std::move(__last), std::move(__comp), std::move(__proj)); |
| } |
| |
| template <bidirectional_range _Range, class _Comp = ranges::less, class _Proj = identity> |
| requires sortable< |
| iterator_t<_Range>, |
| _Comp, |
| _Proj> _LIBCPP_HIDE_FROM_ABI borrowed_iterator_t<_Range> |
| operator()(_Range&& __range, iterator_t<_Range> __middle, _Comp __comp = {}, _Proj __proj = {}) const { |
| return __inplace_merge_impl( |
| ranges::begin(__range), std::move(__middle), ranges::end(__range), std::move(__comp), std::move(__proj)); |
| } |
| }; |
| |
| } // namespace __inplace_merge |
| |
| inline namespace __cpo { |
| inline constexpr auto inplace_merge = __inplace_merge::__fn{}; |
| } // namespace __cpo |
| } // namespace ranges |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER >= 20 |
| |
| #endif // _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H |