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_PARTITION_POINT_H 10 #define _LIBCPP___ALGORITHM_RANGES_PARTITION_POINT_H 11 12 #include <__algorithm/make_projected.h> 13 #include <__algorithm/partition_point.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/projected.h> 21 #include <__ranges/access.h> 22 #include <__ranges/concepts.h> 23 #include <__ranges/dangling.h> 24 #include <__utility/forward.h> 25 #include <__utility/move.h> 26 27 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 28 # pragma GCC system_header 29 #endif 30 31 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 32 33 _LIBCPP_BEGIN_NAMESPACE_STD 34 35 namespace ranges { 36 namespace __partition_point { 37 38 struct __fn { 39 40 template <forward_iterator _Iter, sentinel_for<_Iter> _Sent, class _Proj = identity, 41 indirect_unary_predicate<projected<_Iter, _Proj>> _Pred> 42 _LIBCPP_HIDE_FROM_ABI constexpr 43 _Iter operator()(_Iter __first, _Sent __last, _Pred __pred, _Proj __proj = {}) const { 44 // TODO: implement 45 (void)__first; (void)__last; (void)__pred; (void)__proj; 46 return {}; 47 } 48 49 template <forward_range _Range, class _Proj = identity, 50 indirect_unary_predicate<projected<iterator_t<_Range>, _Proj>> _Pred> 51 _LIBCPP_HIDE_FROM_ABI constexpr 52 borrowed_iterator_t<_Range> operator()(_Range&& __range, _Pred __pred, _Proj __proj = {}) const { 53 // TODO: implement 54 (void)__range; (void)__pred; (void)__proj; 55 return {}; 56 } 57 58 }; 59 60 } // namespace __partition_point 61 62 inline namespace __cpo { 63 inline constexpr auto partition_point = __partition_point::__fn{}; 64 } // namespace __cpo 65 } // namespace ranges 66 67 _LIBCPP_END_NAMESPACE_STD 68 69 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 70 71 #endif // _LIBCPP___ALGORITHM_RANGES_PARTITION_POINT_H 72