xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/reverse_copy.h (revision 0fcececbac9880b092aeb56a41a16f1ec8ac1ae6)
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_REVERSE_COPY_H
10  #define _LIBCPP___ALGORITHM_REVERSE_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 _BidirectionalIterator, class _OutputIterator>
21  inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
22  _OutputIterator
23  reverse_copy(_BidirectionalIterator __first, _BidirectionalIterator __last, _OutputIterator __result)
24  {
25      for (; __first != __last; ++__result)
26          *__result = *--__last;
27      return __result;
28  }
29  
30  _LIBCPP_END_NAMESPACE_STD
31  
32  #endif // _LIBCPP___ALGORITHM_REVERSE_COPY_H
33