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/ranges_remove_copy_if.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/projected.h> 20 #include <__ranges/access.h> 21 #include <__ranges/concepts.h> 22 #include <__ranges/dangling.h> 23 #include <__utility/move.h> 24 25 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 26 # pragma GCC system_header 27 #endif 28 29 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 30 31 _LIBCPP_BEGIN_NAMESPACE_STD 32 33 namespace ranges { 34 35 template <class _InIter, class _OutIter> 36 using remove_copy_result = in_out_result<_InIter, _OutIter>; 37 38 namespace __remove_copy { 39 40 struct __fn { 41 template <input_iterator _InIter, 42 sentinel_for<_InIter> _Sent, 43 weakly_incrementable _OutIter, 44 class _Type, 45 class _Proj = identity> 46 requires indirectly_copyable<_InIter, _OutIter> && 47 indirect_binary_predicate<ranges::equal_to, projected<_InIter, _Proj>, const _Type*> 48 _LIBCPP_HIDE_FROM_ABI constexpr remove_copy_result<_InIter, _OutIter> 49 operator()(_InIter __first, _Sent __last, _OutIter __result, const _Type& __value, _Proj __proj = {}) const { 50 auto __pred = [&](auto&& __val) { return __value == __val; }; 51 return ranges::__remove_copy_if_impl(std::move(__first), std::move(__last), std::move(__result), __pred, __proj); 52 } 53 54 template <input_range _Range, weakly_incrementable _OutIter, class _Type, class _Proj = identity> 55 requires indirectly_copyable<iterator_t<_Range>, _OutIter> && 56 indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> 57 _LIBCPP_HIDE_FROM_ABI constexpr remove_copy_result<borrowed_iterator_t<_Range>, _OutIter> 58 operator()(_Range&& __range, _OutIter __result, const _Type& __value, _Proj __proj = {}) const { 59 auto __pred = [&](auto&& __val) { return __value == __val; }; 60 return ranges::__remove_copy_if_impl( 61 ranges::begin(__range), ranges::end(__range), std::move(__result), __pred, __proj); 62 } 63 }; 64 65 } // namespace __remove_copy 66 67 inline namespace __cpo { 68 inline constexpr auto remove_copy = __remove_copy::__fn{}; 69 } // namespace __cpo 70 } // namespace ranges 71 72 _LIBCPP_END_NAMESPACE_STD 73 74 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 75 76 #endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_COPY_H 77