xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/replace_copy.h (revision ebacd8013fe5f7fdf9f6a5b286f6680dd2891036)
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 #endif
17 
18 _LIBCPP_BEGIN_NAMESPACE_STD
19 
20 template <class _InputIterator, class _OutputIterator, class _Tp>
21 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
22 _OutputIterator
23 replace_copy(_InputIterator __first, _InputIterator __last, _OutputIterator __result,
24              const _Tp& __old_value, const _Tp& __new_value)
25 {
26     for (; __first != __last; ++__first, (void) ++__result)
27         if (*__first == __old_value)
28             *__result = __new_value;
29         else
30             *__result = *__first;
31     return __result;
32 }
33 
34 _LIBCPP_END_NAMESPACE_STD
35 
36 #endif // _LIBCPP___ALGORITHM_REPLACE_COPY_H
37