18 #include <cuda_runtime.h>
61 "lists_column_device_view only supports lists");
64 "lists_column_device_view only supports lists");
An immutable, non-owning view of device data as a column of elements that is trivially copyable and u...
column_device_view child(size_type child_index) const noexcept
Returns the specified child.
T element(size_type element_index) const noexcept
Returns reference to element at the specified index.
CUDF_HOST_DEVICE column_device_view slice(size_type offset, size_type size) const noexcept
Get a new column_device_view which is a slice of this column.
const_iterator< T > end() const
Returns an iterator to the element following the last element of the column.
constexpr type_id id() const noexcept
Returns the type identifier.
CUDF_HOST_DEVICE data_type type() const noexcept
Returns the element type.
CUDF_HOST_DEVICE size_type size() const noexcept
Returns the number of elements in the column.
bool is_null(size_type element_index) const noexcept
Returns whether the specified element is null.
CUDF_HOST_DEVICE size_type offset() const noexcept
Returns the index of the first element relative to the base memory allocation, i.e....
CUDF_HOST_DEVICE bool nullable() const noexcept
Indicates whether the column can contain null elements, i.e., if it has an allocated bitmask.
Given a column_device_view, an instance of this class provides a wrapper on this compound column for ...
column_device_view offsets() const
Fetches the offsets column of the underlying list column.
CUDF_HOST_DEVICE lists_column_device_view(column_device_view const &underlying_)
Construct a new lists column device view object from a column device view.
lists_column_device_view(lists_column_device_view &&)=default
Move constructor.
column_device_view get_sliced_child() const
Fetches the child column of the underlying list column with offset and size applied.
lists_column_device_view & operator=(lists_column_device_view const &)=default
Copy assignment operator.
lists_column_device_view & operator=(lists_column_device_view &&)=default
Move assignment operator.
size_type offset_at(size_type idx) const
Fetches the list offset value at a given row index while taking column offset into account.
lists_column_device_view(lists_column_device_view const &)=default
Copy constructor.
column_device_view child() const
Fetches the child column of the underlying list column.
static constexpr size_type child_column_index
The index of the child column.
static constexpr size_type offsets_column_index
The index of the offsets column.
Column device view class definitions.
#define CUDF_EXPECTS(...)
Macro for checking (pre-)conditions that throws an exception when a condition is violated.
int32_t size_type
Row index type for columns and tables.
Class definition for cudf::lists_column_view.
Type declarations for libcudf.
#define CUDF_HOST_DEVICE
Indicates that the function or method is usable on host and device.