libcxx/include/__algorithm/reverse_copy.h

   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