| //===----------------------------------------------------------------------===// |
| // |
| // 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_UNIQUE_COPY_H |
| #define _LIBCPP___ALGORITHM_RANGES_UNIQUE_COPY_H |
| |
| #include <__algorithm/in_out_result.h> |
| #include <__algorithm/make_projected.h> |
| #include <__algorithm/unique_copy.h> |
| #include <__concepts/same_as.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/readable_traits.h> |
| #include <__iterator/projected.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 > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace ranges { |
| |
| template <class _InIter, class _OutIter> |
| using unique_copy_result = in_out_result<_InIter, _OutIter>; |
| |
| namespace __unique_copy { |
| |
| struct __fn { |
| |
| template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter, class _Proj = identity, |
| indirect_equivalence_relation<projected<_InIter, _Proj>> _Comp = ranges::equal_to> |
| requires indirectly_copyable<_InIter, _OutIter> && |
| (forward_iterator<_InIter> || |
| (input_iterator<_OutIter> && same_as<iter_value_t<_InIter>, iter_value_t<_OutIter>>) || |
| indirectly_copyable_storable<_InIter, _OutIter>) |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| unique_copy_result<_InIter, _OutIter> |
| operator()(_InIter __first, _Sent __last, _OutIter __result, _Comp __comp = {}, _Proj __proj = {}) const { |
| // TODO: implement |
| (void)__first; (void)__last; (void)__result; (void)__comp; (void)__proj; |
| return {}; |
| } |
| |
| template <input_range _Range, weakly_incrementable _OutIter, class _Proj = identity, |
| indirect_equivalence_relation<projected<iterator_t<_Range>, _Proj>> _Comp = ranges::equal_to> |
| requires indirectly_copyable<iterator_t<_Range>, _OutIter> && |
| (forward_iterator<iterator_t<_Range>> || |
| (input_iterator<_OutIter> && same_as<range_value_t<_Range>, iter_value_t<_OutIter>>) || |
| indirectly_copyable_storable<iterator_t<_Range>, _OutIter>) |
| _LIBCPP_HIDE_FROM_ABI constexpr |
| unique_copy_result<borrowed_iterator_t<_Range>, _OutIter> |
| operator()(_Range&& __range, _OutIter __result, _Comp __comp = {}, _Proj __proj = {}) const { |
| // TODO: implement |
| (void)__range; (void)__result; (void)__comp; (void)__proj; |
| return {}; |
| } |
| |
| }; |
| |
| } // namespace __unique_copy |
| |
| inline namespace __cpo { |
| inline constexpr auto unique_copy = __unique_copy::__fn{}; |
| } // namespace __cpo |
| } // namespace ranges |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) |
| |
| #endif // _LIBCPP___ALGORITHM_RANGES_UNIQUE_COPY_H |