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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___ALGORITHM_REMOVE_IF_H10#define _LIBCPP___ALGORITHM_REMOVE_IF_H11 12#include <__algorithm/find_if.h>13#include <__config>14#include <__utility/move.h>15 16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)17# pragma GCC system_header18#endif19 20_LIBCPP_PUSH_MACROS21#include <__undef_macros>22 23_LIBCPP_BEGIN_NAMESPACE_STD24 25template <class _ForwardIterator, class _Predicate>26[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator27remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) {28 __first = std::find_if<_ForwardIterator, _Predicate&>(__first, __last, __pred);29 if (__first != __last) {30 _ForwardIterator __i = __first;31 while (++__i != __last) {32 if (!__pred(*__i)) {33 *__first = std::move(*__i);34 ++__first;35 }36 }37 }38 return __first;39}40 41_LIBCPP_END_NAMESPACE_STD42 43_LIBCPP_POP_MACROS44 45#endif // _LIBCPP___ALGORITHM_REMOVE_IF_H46