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_REMOVE_COPY_H 10 #define _LIBCPP___ALGORITHM_RANGES_REMOVE_COPY_H 11 12 #include <__algorithm/in_out_result.h> 13 #include <__algorithm/make_projected.h> 14 #include <__algorithm/remove_copy.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/projected.h> 22 #include <__ranges/access.h> 23 #include <__ranges/concepts.h> 24 #include <__ranges/dangling.h> 25 #include <__utility/forward.h> 26 #include <__utility/move.h> 27 28 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 29 # pragma GCC system_header 30 #endif 31 32 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 33 34 _LIBCPP_BEGIN_NAMESPACE_STD 35 36 namespace ranges { 37 38 template <class _InIter, class _OutIter> 39 using remove_copy_result = in_out_result<_InIter, _OutIter>; 40 41 namespace __remove_copy { 42 43 struct __fn { 44 45 template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter, class _Type, 46 class _Proj = identity> 47 requires indirectly_copyable<_InIter, _OutIter> && 48 indirect_binary_predicate<ranges::equal_to, projected<_InIter, _Proj>, const _Type*> 49 _LIBCPP_HIDE_FROM_ABI constexpr 50 remove_copy_result<_InIter, _OutIter> 51 operator()(_InIter __first, _Sent __last, _OutIter __result, const _Type& __value, _Proj __proj = {}) const { 52 // TODO: implement 53 (void)__first; (void)__last; (void)__result; (void)__value; (void)__proj; 54 return {}; 55 } 56 57 template <input_range _Range, weakly_incrementable _OutIter, class _Type, class _Proj = identity> 58 requires indirectly_copyable<iterator_t<_Range>, _OutIter> && 59 indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> 60 _LIBCPP_HIDE_FROM_ABI constexpr 61 remove_copy_result<borrowed_iterator_t<_Range>, _OutIter> 62 operator()(_Range&& __range, _OutIter __result, const _Type& __value, _Proj __proj = {}) const { 63 // TODO: implement 64 (void)__range; (void)__result; (void)__value; (void)__proj; 65 return {}; 66 } 67 68 }; 69 70 } // namespace __remove_copy 71 72 inline namespace __cpo { 73 inline constexpr auto remove_copy = __remove_copy::__fn{}; 74 } // namespace __cpo 75 } // namespace ranges 76 77 _LIBCPP_END_NAMESPACE_STD 78 79 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 80 81 #endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_COPY_H 82