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Showing content from https://kokkos.github.io/kokkos-core-wiki/API/algorithms/std-algorithms/all/StdReverseCopy.html below:

reverse_copy - Kokkos documentation

Header: <Kokkos_StdAlgorithms.hpp>

Copies the elements from the range or from a rank-1 View and writes them in reverse order to the range beginning at d_first or to a target rank-1 View.

Warning

This is currently inside the Kokkos::Experimental namespace.

template <class ExecutionSpace, class InputIterator, class OutputIterator>
OutputIterator reverse_copy(const ExecutionSpace& exespace, InputIterator first,      (1)
                            InputIterator last, OutputIterator d_first);

template <class ExecutionSpace, class InputIterator, class OutputIterator>
OutputIterator reverse_copy(const std::string& label, const ExecutionSpace& exespace, (2)
                            InputIterator first, InputIterator last,
                            OutputIterator d_first);

template <class ExecutionSpace, class DataType1, class... Properties1,
          class DataType2, class... Properties2>
auto reverse_copy(const ExecutionSpace& exespace,                                     (3)
                  const ::Kokkos::View<DataType1, Properties1...>& source,
                  ::Kokkos::View<DataType2, Properties2...>& dest);

template <class ExecutionSpace, class DataType1, class... Properties1,
          class DataType2, class... Properties2>
auto reverse_copy(const std::string& label, const ExecutionSpace& exespace,           (4)
                  const ::Kokkos::View<DataType1, Properties1...>& source,
                  ::Kokkos::View<DataType2, Properties2...>& dest);

Added in version 4.2.

template <class TeamHandleType, class InputIterator, class OutputIterator>
KOKKOS_FUNCTION
OutputIterator reverse_copy(const TeamHandleType& teamHandle, InputIterator first,    (5)
                            InputIterator last, OutputIterator d_first);

template <class TeamHandleType, class DataType1, class... Properties1,
          class DataType2, class... Properties2>
KOKKOS_FUNCTION
auto reverse_copy(const TeamHandleType& teamHandle,                                   (6)
                  const ::Kokkos::View<DataType1, Properties1...>& source,
                  ::Kokkos::View<DataType2, Properties2...>& dest);

• exespace: execution space instance

• teamHandle: team handle instance given inside a parallel region when using a TeamPolicy

• label: string forwarded to internal parallel kernels for debugging purposes

  • for 1, the default string is: “Kokkos::reverse_copy_iterator_api_default”

  • for 3, the default string is: “Kokkos::reverse_copy_view_api_default”

  • NOTE: overloads accepting a team handle do not use a label internally

• first, last, d_first: range of elements to copy from and to in reverse order

  • must be random access iterators, e.g., returned from Kokkos::Experimental::(c)begin/(c)end

  • must represent a valid range, i.e., last >= first

  • must be accessible from exespace or from the execution space associated with the team handle

• source, dest: views to copy from and to in reverse order

  • must be rank-1, and have LayoutLeft, LayoutRight, or LayoutStride

  • must be accessible from exespace or from the execution space associated with the team handle

• 1,2,5: an iterator equal to d_first + Kokkos::Experimental::distance(first, last)

• 3,4,6: an iterator equal to Kokkos::Experimental::begin(dest) + Kokkos::Experimental:distance(Kokkos::Experimental::cbegin(source), Kokkos::Experimental::cend(source))

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