cudf::ast::generic_scalar_device_view Class Reference

A type-erased scalar_device_view where the value is a fixed width type or a string. More...

#include <expressions.hpp>

Inheritance diagram for cudf::ast::generic_scalar_device_view:

Public Member Functions
template<typename T >
T const	value () const noexcept
	Returns the stored value. More...
template<typename T >
	generic_scalar_device_view (numeric_scalar< T > &s)
	Construct a new generic scalar device view object from a numeric scalar. More...
template<typename T >
	generic_scalar_device_view (timestamp_scalar< T > &s)
	Construct a new generic scalar device view object from a timestamp scalar. More...
template<typename T >
	generic_scalar_device_view (duration_scalar< T > &s)
	Construct a new generic scalar device view object from a duration scalar. More...
	generic_scalar_device_view (string_scalar &s)
	Construct a new generic scalar device view object from a string scalar. More...
Public Member Functions inherited from cudf::detail::scalar_device_view_base
data_type	type () const noexcept
	Returns the value type. More...
bool	is_valid () const noexcept
	Returns whether the scalar holds a valid value (i.e., not null). More...
void	set_valid (bool is_valid) noexcept
	Updates the validity of the value. More...

Protected Member Functions
	generic_scalar_device_view (data_type type, void const *data, bool *is_valid)
	Construct a new fixed width scalar device view object. More...
	generic_scalar_device_view (data_type type, void const *data, bool *is_valid, size_type size)
	Construct a new string scalar device view object. More...
Protected Member Functions inherited from cudf::detail::scalar_device_view_base
	scalar_device_view_base (data_type type, bool *is_valid)
	Construct a new scalar device view base object from a device pointer and a validity boolean. More...

Protected Attributes
void const *	_data {}
	Pointer to device memory containing the value.
size_type const	_size {}
	Size of the string in bytes for string scalar.
Protected Attributes inherited from cudf::detail::scalar_device_view_base
data_type	_type {type_id::EMPTY}
	Value data type.
bool *	_is_valid {}

Detailed Description

A type-erased scalar_device_view where the value is a fixed width type or a string.

Definition at line 172 of file expressions.hpp.

Constructor & Destructor Documentation

generic_scalar_device_view() [1/6]

template<typename T >

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( numeric_scalar< T > &  s )

inline

Construct a new generic scalar device view object from a numeric scalar.

Parameters

s	The numeric scalar to construct from

Definition at line 194 of file expressions.hpp.

generic_scalar_device_view() [2/6]

template<typename T >

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( timestamp_scalar< T > &  s )

inline

Construct a new generic scalar device view object from a timestamp scalar.

Parameters

s	The timestamp scalar to construct from

Definition at line 204 of file expressions.hpp.

generic_scalar_device_view() [3/6]

template<typename T >

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( duration_scalar< T > &  s )

inline

Construct a new generic scalar device view object from a duration scalar.

Parameters

s	The duration scalar to construct from

Definition at line 214 of file expressions.hpp.

generic_scalar_device_view() [4/6]

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( string_scalar &  s )

inline

Construct a new generic scalar device view object from a string scalar.

Parameters

s	The string scalar to construct from

Definition at line 223 of file expressions.hpp.

generic_scalar_device_view() [5/6]

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( data_type  type, void const *  data, bool *  is_valid  )

inlineprotected

Construct a new fixed width scalar device view object.

Parameters

type	The data type of the value
data	The pointer to the data in device memory
is_valid	The pointer to the bool in device memory that indicates the validity of the stored value

Definition at line 240 of file expressions.hpp.

generic_scalar_device_view() [6/6]

cudf::ast::generic_scalar_device_view::generic_scalar_device_view ( data_type  type, void const *  data, bool *  is_valid, size_type  size  )

inlineprotected

Construct a new string scalar device view object.

Parameters

type	The data type of the value
data	The pointer to the data in device memory
is_valid	The pointer to the bool in device memory that indicates the validity of the stored value
size	The size of the string in bytes

Definition at line 253 of file expressions.hpp.

Member Function Documentation

value()

template<typename T >

T const cudf::ast::generic_scalar_device_view::value ( ) const

inlinenoexcept

Returns the stored value.

Template Parameters

T	The desired type

Returns

The stored value

Definition at line 181 of file expressions.hpp.

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The documentation for this class was generated from the following file:

• expressions.hpp