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1 //===----------------------------------------------------------------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8
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9 #ifndef _LIBCPP___ALGORITHM_REMOVE_IF_H
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10 #define _LIBCPP___ALGORITHM_REMOVE_IF_H
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11
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236
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12 #include <__algorithm/find_if.h>
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223
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13 #include <__config>
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236
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14 #include <__utility/move.h>
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223
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15
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16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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236
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17 # pragma GCC system_header
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223
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18 #endif
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19
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20 _LIBCPP_BEGIN_NAMESPACE_STD
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21
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22 template <class _ForwardIterator, class _Predicate>
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236
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23 _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
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223
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24 remove_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred)
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25 {
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236
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26 __first = _VSTD::find_if<_ForwardIterator, _Predicate&>(__first, __last, __pred);
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223
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27 if (__first != __last)
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28 {
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29 _ForwardIterator __i = __first;
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30 while (++__i != __last)
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31 {
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32 if (!__pred(*__i))
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33 {
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34 *__first = _VSTD::move(*__i);
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35 ++__first;
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36 }
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37 }
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38 }
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39 return __first;
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40 }
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41
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42 _LIBCPP_END_NAMESPACE_STD
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43
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44 #endif // _LIBCPP___ALGORITHM_REMOVE_IF_H
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