45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_REMOVE_IF_H
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#define _LIBCPP___ALGORITHM_REMOVE_IF_H
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#include <__algorithm/find_if.h>
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#include <__config>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _ForwardIterator, class _Predicate>
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_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
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remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred)
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{
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__first = _VSTD::find_if<_ForwardIterator, _Predicate&>(__first, __last, __pred);
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if (__first != __last)
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{
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_ForwardIterator __i = __first;
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while (++__i != __last)
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{
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if (!__pred(*__i))
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{
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*__first = _VSTD::move(*__i);
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++__first;
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}
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}
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}
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return __first;
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_REMOVE_IF_H
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