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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ALGORITHM_REMOVE_IF_H
#define _LIBCPP___ALGORITHM_REMOVE_IF_H
#include <__algorithm/find_if.h>
#include <__config>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _ForwardIterator, class _Predicate>
_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) {
__first = std::find_if<_ForwardIterator, _Predicate&>(__first, __last, __pred);
if (__first != __last) {
_ForwardIterator __i = __first;
while (++__i != __last) {
if (!__pred(*__i)) {
*__first = std::move(*__i);
++__first;
}
}
}
return __first;
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___ALGORITHM_REMOVE_IF_H
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