remove_copy

Header: Kokkos_StdAlgorithms.hpp

Description

Copies the elements from a range to a new range starting at first_to or from view_from to view_dest omitting those that are equal to value.

Interface

Warning

This is currently inside the Kokkos::Experimental namespace.

Overload set accepting execution space

template <
  class ExecutionSpace,
  class InputIterator, class OutputIterator,
  class ValueType>
OutputIterator remove_copy(const ExecutionSpace& exespace,                   (1)
                           InputIterator first_from,
                           InputIterator last_from,
                           OutputIterator first_to,
                           const ValueType& value);

template <
  class ExecutionSpace,
  class InputIterator, class OutputIterator,
  class ValueType>
OutputIterator remove_copy(const std::string& label,                         (2)
                           const ExecutionSpace& exespace,
                           InputIterator first_from,
                           InputIterator last_from,
                           OutputIterator first_to,
                           const ValueType& value);

template <
  class ExecutionSpace,
  class DataType1, class... Properties1,
  class DataType2, class... Properties2,
  class ValueType>
auto remove_copy(const ExecutionSpace& exespace,                             (3)
                 const Kokkos::View<DataType1, Properties1...>& view_from,
                 const Kokkos::View<DataType2, Properties2...>& view_dest,
                 const ValueType& value);

template <
  class ExecutionSpace,
  class DataType1, class... Properties1,
  class DataType2, class... Properties2,
  class ValueType>
auto remove_copy(const std::string& label,                                   (4)
                 const ExecutionSpace& exespace,
                 const Kokkos::View<DataType1, Properties1...>& view_from,
                 const Kokkos::View<DataType2, Properties2...>& view_dest,
                 const ValueType& value);

Overload set accepting a team handle

New in version 4.2.

template <
  class TeamHandleType,
  class InputIterator, class OutputIterator,
  class ValueType>
KOKKOS_FUNCTION
OutputIterator remove_copy(const TeamHandleType& teamHandle,                 (5)
                           InputIterator first_from,
                           InputIterator last_from,
                           OutputIterator first_to,
                           const ValueType& value);

template <
  class TeamHandleType,
  class DataType1, class... Properties1,
  class DataType2, class... Properties2,
  class ValueType>
KOKKOS_FUNCTION
auto remove_copy(const TeamHandleType& teamHandle,                           (6)
                 const Kokkos::View<DataType1, Properties1...>& view_from,
                 const Kokkos::View<DataType2, Properties2...>& view_dest,
                 const ValueType& value);

Parameters and Requirements

• 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

  • 1: The default string is “Kokkos::remove_copy_iterator_api_default”.

  • 3: The default string is “Kokkos::remove_copy_view_api_default”.

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

• first_from, last_from: range of elements to copy from

  • 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

• first_to: beginning of the range to copy to

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

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

• view_from, view_dest: source and destination views

  • 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

• value: target value to omit

Return Value

Iterator to the element after the last element copied.