1753f127fSDimitry Andric //===----------------------------------------------------------------------===// 2753f127fSDimitry Andric // 3753f127fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4753f127fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5753f127fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6753f127fSDimitry Andric // 7753f127fSDimitry Andric //===----------------------------------------------------------------------===// 8753f127fSDimitry Andric 9753f127fSDimitry Andric #ifndef _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H 10753f127fSDimitry Andric #define _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H 11753f127fSDimitry Andric 12753f127fSDimitry Andric #include <__algorithm/inplace_merge.h> 1361cfbce3SDimitry Andric #include <__algorithm/iterator_operations.h> 14753f127fSDimitry Andric #include <__algorithm/make_projected.h> 15753f127fSDimitry Andric #include <__config> 16753f127fSDimitry Andric #include <__functional/identity.h> 17753f127fSDimitry Andric #include <__functional/invoke.h> 18753f127fSDimitry Andric #include <__functional/ranges_operations.h> 19753f127fSDimitry Andric #include <__iterator/concepts.h> 20753f127fSDimitry Andric #include <__iterator/iterator_traits.h> 2161cfbce3SDimitry Andric #include <__iterator/next.h> 22753f127fSDimitry Andric #include <__iterator/projected.h> 23753f127fSDimitry Andric #include <__iterator/sortable.h> 24753f127fSDimitry Andric #include <__ranges/access.h> 25753f127fSDimitry Andric #include <__ranges/concepts.h> 26753f127fSDimitry Andric #include <__ranges/dangling.h> 27753f127fSDimitry Andric #include <__utility/forward.h> 28753f127fSDimitry Andric #include <__utility/move.h> 29753f127fSDimitry Andric 30753f127fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 31753f127fSDimitry Andric # pragma GCC system_header 32753f127fSDimitry Andric #endif 33753f127fSDimitry Andric 34*b3edf446SDimitry Andric _LIBCPP_PUSH_MACROS 35*b3edf446SDimitry Andric #include <__undef_macros> 36*b3edf446SDimitry Andric 3706c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 38753f127fSDimitry Andric 39753f127fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 40753f127fSDimitry Andric 41753f127fSDimitry Andric namespace ranges { 42753f127fSDimitry Andric namespace __inplace_merge { 43753f127fSDimitry Andric 44753f127fSDimitry Andric struct __fn { 4561cfbce3SDimitry Andric template <class _Iter, class _Sent, class _Comp, class _Proj> 4661cfbce3SDimitry Andric _LIBCPP_HIDE_FROM_ABI static constexpr auto __inplace_merge_impl__fn4761cfbce3SDimitry Andric __inplace_merge_impl(_Iter __first, _Iter __middle, _Sent __last, _Comp&& __comp, _Proj&& __proj) { 4861cfbce3SDimitry Andric auto __last_iter = ranges::next(__middle, __last); 4961cfbce3SDimitry Andric std::__inplace_merge<_RangeAlgPolicy>( 5061cfbce3SDimitry Andric std::move(__first), std::move(__middle), __last_iter, std::__make_projected(__comp, __proj)); 5161cfbce3SDimitry Andric return __last_iter; 5261cfbce3SDimitry Andric } 53753f127fSDimitry Andric 5406c3fb27SDimitry Andric template <bidirectional_iterator _Iter, sentinel_for<_Iter> _Sent, class _Comp = ranges::less, class _Proj = identity> 55753f127fSDimitry Andric requires sortable<_Iter, _Comp, _Proj> 5661cfbce3SDimitry Andric _LIBCPP_HIDE_FROM_ABI _Iter operator__fn5761cfbce3SDimitry Andric operator()(_Iter __first, _Iter __middle, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const { 5861cfbce3SDimitry Andric return __inplace_merge_impl( 5961cfbce3SDimitry Andric std::move(__first), std::move(__middle), std::move(__last), std::move(__comp), std::move(__proj)); 60753f127fSDimitry Andric } 61753f127fSDimitry Andric 62753f127fSDimitry Andric template <bidirectional_range _Range, class _Comp = ranges::less, class _Proj = identity> 6306c3fb27SDimitry Andric requires sortable<iterator_t<_Range>, _Comp, _Proj> 6406c3fb27SDimitry Andric _LIBCPP_HIDE_FROM_ABI borrowed_iterator_t<_Range> operator__fn6561cfbce3SDimitry Andric operator()(_Range&& __range, iterator_t<_Range> __middle, _Comp __comp = {}, _Proj __proj = {}) const { 6661cfbce3SDimitry Andric return __inplace_merge_impl( 6761cfbce3SDimitry Andric ranges::begin(__range), std::move(__middle), ranges::end(__range), std::move(__comp), std::move(__proj)); 68753f127fSDimitry Andric } 69753f127fSDimitry Andric }; 70753f127fSDimitry Andric 71753f127fSDimitry Andric } // namespace __inplace_merge 72753f127fSDimitry Andric 73753f127fSDimitry Andric inline namespace __cpo { 74753f127fSDimitry Andric inline constexpr auto inplace_merge = __inplace_merge::__fn{}; 75753f127fSDimitry Andric } // namespace __cpo 76753f127fSDimitry Andric } // namespace ranges 77753f127fSDimitry Andric 78753f127fSDimitry Andric _LIBCPP_END_NAMESPACE_STD 79753f127fSDimitry Andric 8006c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 81753f127fSDimitry Andric 82*b3edf446SDimitry Andric _LIBCPP_POP_MACROS 83*b3edf446SDimitry Andric 84753f127fSDimitry Andric #endif // _LIBCPP___ALGORITHM_RANGES_INPLACE_MERGE_H 85