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-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #ifndef _LIBCPP___ALGORITHM_PARTITION_COPY_H
10 #define _LIBCPP___ALGORITHM_PARTITION_COPY_H
11
12 #include <__config>
13 #include <__iterator/iterator_traits.h>
14 #include <utility> // pair
15
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #pragma GCC system_header
18 #endif
19
20 _LIBCPP_PUSH_MACROS
21 #include <__undef_macros>
22
23 _LIBCPP_BEGIN_NAMESPACE_STD
24
25 template <class _InputIterator, class _OutputIterator1,
26 class _OutputIterator2, class _Predicate>
27 _LIBCPP_CONSTEXPR_AFTER_CXX17 pair<_OutputIterator1, _OutputIterator2>
partition_copy(_InputIterator __first,_InputIterator __last,_OutputIterator1 __out_true,_OutputIterator2 __out_false,_Predicate __pred)28 partition_copy(_InputIterator __first, _InputIterator __last,
29 _OutputIterator1 __out_true, _OutputIterator2 __out_false,
30 _Predicate __pred)
31 {
32 for (; __first != __last; ++__first)
33 {
34 if (__pred(*__first))
35 {
36 *__out_true = *__first;
37 ++__out_true;
38 }
39 else
40 {
41 *__out_false = *__first;
42 ++__out_false;
43 }
44 }
45 return pair<_OutputIterator1, _OutputIterator2>(__out_true, __out_false);
46 }
47
48 _LIBCPP_END_NAMESPACE_STD
49
50 _LIBCPP_POP_MACROS
51
52 #endif // _LIBCPP___ALGORITHM_PARTITION_COPY_H
53