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_H 10 #define _LIBCPP___ALGORITHM_RANGES_REMOVE_H 11 #include <__config> 12 13 #include <__algorithm/ranges_remove_if.h> 14 #include <__functional/identity.h> 15 #include <__functional/ranges_operations.h> 16 #include <__iterator/concepts.h> 17 #include <__iterator/permutable.h> 18 #include <__iterator/projected.h> 19 #include <__ranges/access.h> 20 #include <__ranges/concepts.h> 21 #include <__ranges/subrange.h> 22 #include <__utility/move.h> 23 24 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 25 # pragma GCC system_header 26 #endif 27 28 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 29 30 _LIBCPP_BEGIN_NAMESPACE_STD 31 32 namespace ranges { 33 namespace __remove { 34 struct __fn { 35 36 template <permutable _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity> 37 requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*> 38 _LIBCPP_HIDE_FROM_ABI constexpr 39 subrange<_Iter> operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) const { 40 auto __pred = [&](auto&& __other) { return __value == __other; }; 41 return ranges::__remove_if_impl(std::move(__first), std::move(__last), __pred, __proj); 42 } 43 44 template <forward_range _Range, class _Type, class _Proj = identity> 45 requires permutable<iterator_t<_Range>> 46 && indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> 47 _LIBCPP_HIDE_FROM_ABI constexpr 48 borrowed_subrange_t<_Range> operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) const { 49 auto __pred = [&](auto&& __other) { return __value == __other; }; 50 return ranges::__remove_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj); 51 } 52 }; 53 } // namespace __remove 54 55 inline namespace __cpo { 56 inline constexpr auto remove = __remove::__fn{}; 57 } // namespace __cpo 58 } // namespace ranges 59 60 _LIBCPP_END_NAMESPACE_STD 61 62 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) 63 64 #endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_H 65