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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___ALGORITHM_RANGES_UNIQUE_H10#define _LIBCPP___ALGORITHM_RANGES_UNIQUE_H11 12#include <__algorithm/iterator_operations.h>13#include <__algorithm/make_projected.h>14#include <__algorithm/unique.h>15#include <__config>16#include <__functional/identity.h>17#include <__functional/invoke.h>18#include <__functional/ranges_operations.h>19#include <__iterator/concepts.h>20#include <__iterator/iterator_traits.h>21#include <__iterator/permutable.h>22#include <__iterator/projected.h>23#include <__ranges/access.h>24#include <__ranges/concepts.h>25#include <__ranges/dangling.h>26#include <__ranges/subrange.h>27#include <__utility/forward.h>28#include <__utility/move.h>29#include <__utility/pair.h>30 31#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)32# pragma GCC system_header33#endif34 35_LIBCPP_PUSH_MACROS36#include <__undef_macros>37 38#if _LIBCPP_STD_VER >= 2039 40_LIBCPP_BEGIN_NAMESPACE_STD41 42namespace ranges {43struct __unique {44 template <permutable _Iter,45 sentinel_for<_Iter> _Sent,46 class _Proj = identity,47 indirect_equivalence_relation<projected<_Iter, _Proj>> _Comp = ranges::equal_to>48 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr subrange<_Iter>49 operator()(_Iter __first, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const {50 auto __ret =51 std::__unique<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::__make_projected(__comp, __proj));52 return {std::move(__ret.first), std::move(__ret.second)};53 }54 55 template <forward_range _Range,56 class _Proj = identity,57 indirect_equivalence_relation<projected<iterator_t<_Range>, _Proj>> _Comp = ranges::equal_to>58 requires permutable<iterator_t<_Range>>59 [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr borrowed_subrange_t<_Range>60 operator()(_Range&& __range, _Comp __comp = {}, _Proj __proj = {}) const {61 auto __ret = std::__unique<_RangeAlgPolicy>(62 ranges::begin(__range), ranges::end(__range), std::__make_projected(__comp, __proj));63 return {std::move(__ret.first), std::move(__ret.second)};64 }65};66 67inline namespace __cpo {68inline constexpr auto unique = __unique{};69} // namespace __cpo70} // namespace ranges71 72_LIBCPP_END_NAMESPACE_STD73 74#endif // _LIBCPP_STD_VER >= 2075 76_LIBCPP_POP_MACROS77 78#endif // _LIBCPP___ALGORITHM_RANGES_UNIQUE_H79