xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/replace_if.h (revision 21817992b3314c908ab50f0bb88d2ee750b9c4ac)
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_IF_H
10  #define _LIBCPP___ALGORITHM_REPLACE_IF_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 _ForwardIterator, class _Predicate, class _Tp>
21  inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
22  replace_if(_ForwardIterator __first, _ForwardIterator __last, _Predicate __pred, const _Tp& __new_value) {
23    for (; __first != __last; ++__first)
24      if (__pred(*__first))
25        *__first = __new_value;
26  }
27  
28  _LIBCPP_END_NAMESPACE_STD
29  
30  #endif // _LIBCPP___ALGORITHM_REPLACE_IF_H
31