dictionary_factories.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
21 
22 #include <rmm/cuda_stream_view.hpp>
24 #include <rmm/resource_ref.hpp>
25 
26 namespace CUDF_EXPORT cudf {
66 std::unique_ptr<column> make_dictionary_column(
67  column_view const& keys_column,
68  column_view const& indices_column,
71 
94 std::unique_ptr<column> make_dictionary_column(
95  std::unique_ptr<column> keys_column,
96  std::unique_ptr<column> indices_column,
97  rmm::device_buffer&& null_mask,
101 
123 std::unique_ptr<column> make_dictionary_column(
124  std::unique_ptr<column> keys_column,
125  std::unique_ptr<column> indices_column,
128  // end of group
130 } // namespace CUDF_EXPORT cudf
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
Class definition for cudf::column.
column view class definitions
std::unique_ptr< column > make_dictionary_column(std::unique_ptr< column > keys_column, std::unique_ptr< column > indices_column, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=rmm::mr::get_current_device_resource())
Construct a dictionary column by taking ownership of the provided keys and indices columns.
cudf::size_type null_count(bitmask_type const *bitmask, size_type start, size_type stop, rmm::cuda_stream_view stream=cudf::get_default_stream())
Given a validity bitmask, counts the number of null elements (unset bits) in the range [start,...
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
device_memory_resource * get_current_device_resource()
int32_t size_type
Row index type for columns and tables.
Definition: types.hpp:95
cuDF interfaces
Definition: aggregation.hpp:35