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Diffstat (limited to 'libcxx/include/__algorithm/ranges_unique.h')
-rw-r--r-- | libcxx/include/__algorithm/ranges_unique.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/libcxx/include/__algorithm/ranges_unique.h b/libcxx/include/__algorithm/ranges_unique.h new file mode 100644 index 000000000000..bdf755e9406e --- /dev/null +++ b/libcxx/include/__algorithm/ranges_unique.h @@ -0,0 +1,74 @@ +//===----------------------------------------------------------------------===// +// +// 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_H +#define _LIBCPP___ALGORITHM_RANGES_UNIQUE_H + +#include <__algorithm/make_projected.h> +#include <__algorithm/unique.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/permutable.h> +#include <__iterator/projected.h> +#include <__ranges/access.h> +#include <__ranges/concepts.h> +#include <__ranges/dangling.h> +#include <__ranges/subrange.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 { +namespace __unique { + +struct __fn { + + template <permutable _Iter, sentinel_for<_Iter> _Sent, class _Proj = identity, + indirect_equivalence_relation<projected<_Iter, _Proj>> _Comp = ranges::equal_to> + _LIBCPP_HIDE_FROM_ABI constexpr + subrange<_Iter> operator()(_Iter __first, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const { + // TODO: implement + (void)__first; (void)__last; (void)__comp; (void)__proj; + return {}; + } + + template <forward_range _Range, class _Proj = identity, + indirect_equivalence_relation<projected<iterator_t<_Range>, _Proj>> _Comp = ranges::equal_to> + requires permutable<iterator_t<_Range>> + _LIBCPP_HIDE_FROM_ABI constexpr + borrowed_subrange_t<_Range> operator()(_Range&& __range, _Comp __comp = {}, _Proj __proj = {}) const { + // TODO: implement + (void)__range; (void)__comp; (void)__proj; + return {}; + } + +}; + +} // namespace __unique + +inline namespace __cpo { + inline constexpr auto unique = __unique::__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_H |