diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h')
-rw-r--r-- | contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h b/contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h index a0867e486c3a..12c90908c210 100644 --- a/contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h +++ b/contrib/llvm-project/libcxx/include/__algorithm/ranges_inplace_merge.h @@ -10,6 +10,7 @@ #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> @@ -17,6 +18,7 @@ #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> @@ -36,28 +38,38 @@ _LIBCPP_BEGIN_NAMESPACE_STD namespace ranges { namespace __inplace_merge { -struct __fn { + 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 { - // TODO: implement - (void)__first; (void)__middle; (void)__last; (void)__comp; (void)__proj; - return {}; - } + 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 { - // TODO: implement - (void)__range; (void)__middle; (void)__comp; (void)__proj; - return {}; - } - -}; + 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 |