xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/reverse_copy.h (revision 1db9f3b21e39176dd5b67cf8ac378633b172463e)
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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
22 reverse_copy(_BidirectionalIterator __first, _BidirectionalIterator __last, _OutputIterator __result) {
23   for (; __first != __last; ++__result)
24     *__result = *--__last;
25   return __result;
26 }
27 
28 _LIBCPP_END_NAMESPACE_STD
29 
30 #endif // _LIBCPP___ALGORITHM_REVERSE_COPY_H
31