cudf::element_hasher< hash_function, Nullate > Class Template Reference

Computes the hash value of an element in the given column. More...

Public Member Functions
template<typename T , CUDF_ENABLE_IF(column_device_view::has_element_accessor< T >()) >
hash_value_type	operator() (column_device_view col, size_type row_index) const
	Returns the hash value of the given element in the given column. More...
template<typename T , CUDF_ENABLE_IF(not column_device_view::has_element_accessor< T >()) >
hash_value_type	operator() (column_device_view col, size_type row_index) const
	Returns the hash value of the given element in the given column. More...

Public Attributes
Nullate	has_nulls
	A cudf::nullate type describing how to check for nulls.

Detailed Description

template<template< typename > class hash_function, typename Nullate>
class cudf::element_hasher< hash_function, Nullate >

Computes the hash value of an element in the given column.

Template Parameters

hash_function	Hash functor to use for hashing elements.
Nullate	A cudf::nullate type describing how to check for nulls.

Definition at line 457 of file row_operators.cuh.

Member Function Documentation

operator()() [1/2]

template<template< typename > class hash_function, typename Nullate >

template<typename T , CUDF_ENABLE_IF(column_device_view::has_element_accessor< T >()) >

hash_value_type cudf::element_hasher< hash_function, Nullate >::operator() ( column_device_view  col, size_type  row_index  ) const

inline

Returns the hash value of the given element in the given column.

Template Parameters

T	The type of the element to hash

Parameters

col	The column to hash
row_index	The index of the row to hash

Returns

The hash value of the given element

Definition at line 468 of file row_operators.cuh.

operator()() [2/2]

template<template< typename > class hash_function, typename Nullate >

template<typename T , CUDF_ENABLE_IF(not column_device_view::has_element_accessor< T >()) >

hash_value_type cudf::element_hasher< hash_function, Nullate >::operator() ( column_device_view  col, size_type  row_index  ) const

inline

Returns the hash value of the given element in the given column.

Template Parameters

T	The type of the element to hash

Parameters

col	The column to hash
row_index	The index of the row to hash

Returns

The hash value of the given element

Definition at line 485 of file row_operators.cuh.

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

• row_operators.cuh