1 //===----------------------------------------------------------------------===//
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
7 //===----------------------------------------------------------------------===//
9 #ifndef _LIBCPP___ALGORITHM_RANGES_REMOVE_H
10 #define _LIBCPP___ALGORITHM_RANGES_REMOVE_H
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>
24 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
25 # pragma GCC system_header
28 #if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
30 _LIBCPP_BEGIN_NAMESPACE_STD
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);
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);
53 } // namespace __remove
55 inline namespace __cpo {
56 inline constexpr auto remove = __remove::__fn{};
60 _LIBCPP_END_NAMESPACE_STD
62 #endif // _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES)
64 #endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_H