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_LIBCPP_PUSH_MACROS 29#include <__undef_macros> 30 31#if _LIBCPP_STD_VER >= 20 32 33_LIBCPP_BEGIN_NAMESPACE_STD 34 35namespace ranges { 36namespace __remove { 37struct __fn { 38 template <permutable _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity> 39 requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*> 40 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr subrange<_Iter> 41 operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) const { 42 auto __pred = [&](auto&& __other) -> bool { return __value == __other; }; 43 return ranges::__remove_if_impl(std::move(__first), std::move(__last), __pred, __proj); 44 } 45 46 template <forward_range _Range, class _Type, class _Proj = identity> 47 requires permutable<iterator_t<_Range>> && 48 indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> 49 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr borrowed_subrange_t<_Range> 50 operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) const { 51 auto __pred = [&](auto&& __other) -> bool { return __value == __other; }; 52 return ranges::__remove_if_impl(ranges::begin(__range), ranges::end(__range), __pred, __proj); 53 } 54}; 55} // namespace __remove 56 57inline namespace __cpo { 58inline constexpr auto remove = __remove::__fn{}; 59} // namespace __cpo 60} // namespace ranges 61 62_LIBCPP_END_NAMESPACE_STD 63 64#endif // _LIBCPP_STD_VER >= 20 65 66_LIBCPP_POP_MACROS 67 68#endif // _LIBCPP___ALGORITHM_RANGES_REMOVE_H 69