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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___ALGORITHM_RANGES_STABLE_PARTITION_H 10 #define _LIBCPP___ALGORITHM_RANGES_STABLE_PARTITION_H 11 12 #include <__algorithm/make_projected.h> 13 #include <__algorithm/stable_partition.h> 14 #include <__config> 15 #include <__functional/identity.h> 16 #include <__functional/invoke.h> 17 #include <__functional/ranges_operations.h> 18 #include <__iterator/concepts.h> 19 #include <__iterator/iterator_traits.h> 20 #include <__iterator/permutable.h> 21 #include <__iterator/projected.h> 22 #include <__ranges/access.h> 23 #include <__ranges/concepts.h> 24 #include <__ranges/dangling.h> 25 #include <__ranges/subrange.h> 26 #include <__utility/forward.h> 27 #include <__utility/move.h> 28 29 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 30 # pragma GCC system_header 31 #endif 32 33 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 34 35 _LIBCPP_BEGIN_NAMESPACE_STD 36 37 namespace ranges { 38 namespace __stable_partition { 39 40 struct __fn { 41 42 template <bidirectional_iterator _Iter, sentinel_for<_Iter> _Sent, class _Proj = identity, 43 indirect_unary_predicate<projected<_Iter, _Proj>> _Pred> 44 requires permutable<_Iter> 45 _LIBCPP_HIDE_FROM_ABI 46 subrange<_Iter> operator()(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) const { 47 // TODO: implement 48 (void)__first; (void)__last; (void)__pred; (void)__proj; 49 return {}; 50 } 51 52 template <bidirectional_range _Range, class _Proj = identity, 53 indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred> 54 requires permutable<iterator_t<_Range>> 55 _LIBCPP_HIDE_FROM_ABI 56 borrowed_subrange_t<_Range> operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const { 57 // TODO: implement 58 (void)__range; (void)__pred; (void)__proj; 59 return {}; 60 } 61 62 }; 63 64 } // namespace __stable_partition 65 66 inline namespace __cpo { 67 inline constexpr auto stable_partition = __stable_partition::__fn{}; 68 } // namespace __cpo 69 } // namespace ranges 70 71 _LIBCPP_END_NAMESPACE_STD 72 73 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 74 75 #endif // _LIBCPP___ALGORITHM_RANGES_STABLE_PARTITION_H 76