xref: /llvm-project/libcxx/include/__algorithm/replace_copy.h (revision 5aaefa510ef055e8f044ca89e352d4313f3aba49)
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_REPLACE_COPY_H
10 #define _LIBCPP___ALGORITHM_REPLACE_COPY_H
11 
12 #include <__config>
13 
14 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
15 #  pragma GCC system_header
16 #  pragma clang include_instead(<algorithm>)
17 #endif
18 
19 _LIBCPP_BEGIN_NAMESPACE_STD
20 
21 template <class _InputIterator, class _OutputIterator, class _Tp>
22 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
23 _OutputIterator
24 replace_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result,
25              const _Tp& __old_value, const _Tp& __new_value)
26 {
27     for (; __first != __last; ++__first, (void) ++__result)
28         if (*__first == __old_value)
29             *__result = __new_value;
30         else
31             *__result = *__first;
32     return __result;
33 }
34 
35 _LIBCPP_END_NAMESPACE_STD
36 
37 #endif // _LIBCPP___ALGORITHM_REPLACE_COPY_H
38