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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_PARTITION_COPY_H
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10 #define _LIBCPP___ALGORITHM_PARTITION_COPY_H
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11
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12 #include <__config>
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13 #include <__iterator/iterator_traits.h>
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236
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14 #include <__utility/pair.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 _InputIterator, class _OutputIterator1,
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23 class _OutputIterator2, class _Predicate>
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236
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24 _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 pair<_OutputIterator1, _OutputIterator2>
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223
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25 partition_copy(_InputIterator __first, _InputIterator __last,
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26 _OutputIterator1 __out_true, _OutputIterator2 __out_false,
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27 _Predicate __pred)
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28 {
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29 for (; __first != __last; ++__first)
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30 {
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31 if (__pred(*__first))
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32 {
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33 *__out_true = *__first;
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34 ++__out_true;
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35 }
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36 else
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37 {
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38 *__out_false = *__first;
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39 ++__out_false;
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40 }
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41 }
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42 return pair<_OutputIterator1, _OutputIterator2>(__out_true, __out_false);
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43 }
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44
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45 _LIBCPP_END_NAMESPACE_STD
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46
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47 #endif // _LIBCPP___ALGORITHM_PARTITION_COPY_H
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