etl::one_if_max_sub_transformer< T > Struct Template Reference

Transformer to implement one if max sub on 2D matrix. More...

#include <flip_transformers.hpp>

Public Types
using	sub_type = T
	The type on which the expression works.
using	value_type = value_t< T >
	The type of valuie.

Public Member Functions
	one_if_max_sub_transformer (sub_type expr)
	Construct a new transformer around the given expression. More...
value_type	operator[] (size_t i) const
	Returns the value at the given index. More...
value_type	read_flat (size_t i) const
	Returns the value at the given index This function never has side effects. More...
value_type	operator() (size_t i, size_t j) const
	Access to the value at the given (i, j) position. More...
template<typename E >
bool	alias (const E &rhs) const noexcept
	Test if this expression aliases with the given expression. More...
template<typename Y >
auto	gpu_compute_hint (Y &y) const noexcept
	Compute the result of the operation using the GPU. More...
template<typename Y >
Y &	gpu_compute (Y &y) const noexcept
	Compute the result of the operation using the GPU. More...
template<typename V >
void	visit (V &&visitor) const
	Apply the given visitor to this expression and its descendants. More...
void	ensure_cpu_up_to_date () const
	Ensures that the GPU memory is allocated and that the GPU memory is up to date (to undefined value).
void	ensure_gpu_up_to_date () const
	Copy back from the GPU to the expression memory if necessary.

Public Attributes
friend	etl_traits< one_if_max_sub_transformer >

Static Public Attributes
static constexpr bool	gpu_computable = impl::egblas::has_sone_if_max_sub && all_row_major<T> && all_floating<T>

Friends
std::ostream &	operator<< (std::ostream &os, const one_if_max_sub_transformer &transformer)
	Display the transformer on the given stream. More...

Detailed Description

template<etl_2d T>
struct etl::one_if_max_sub_transformer< T >

Transformer to implement one if max sub on 2D matrix.

Template Parameters

T	The type on which the transformer is applied

Constructor & Destructor Documentation

one_if_max_sub_transformer()

template<etl_2d T>

etl::one_if_max_sub_transformer< T >::one_if_max_sub_transformer ( sub_type  expr )

inlineexplicit

Construct a new transformer around the given expression.

Parameters

expr	The sub expression

Member Function Documentation

alias()

template<etl_2d T>

template<typename E >

bool etl::one_if_max_sub_transformer< T >::alias ( const E &  rhs ) const

inlinenoexcept

Test if this expression aliases with the given expression.

Parameters

rhs	The other expression to test

Returns

true if the two expressions aliases, false otherwise

gpu_compute()

template<etl_2d T>

template<typename Y >

Y& etl::one_if_max_sub_transformer< T >::gpu_compute ( Y &  y ) const

inlinenoexcept

Compute the result of the operation using the GPU.

Parameters

x	The expression of the unary operation
y	The expression into which to store the reuslt

gpu_compute_hint()

template<etl_2d T>

template<typename Y >

auto etl::one_if_max_sub_transformer< T >::gpu_compute_hint ( Y &  y ) const

inlinenoexcept

Compute the result of the operation using the GPU.

Parameters

x	The expression of the unary operation

Returns

The result of applying the unary operator on x. The result must be a GPU computed expression.

operator()()

template<etl_2d T>

value_type etl::one_if_max_sub_transformer< T >::operator() ( size_t  i, size_t  j  ) const

inline

Access to the value at the given (i, j) position.

Parameters

i	The first index
j	The second index

Returns

The value at the position (i, j)

operator[]()

template<etl_2d T>

value_type etl::one_if_max_sub_transformer< T >::operator[] ( size_t  i ) const

inline

Returns the value at the given index.

Parameters

i

The index

Returns

the value at the given index.

read_flat()

template<etl_2d T>

value_type etl::one_if_max_sub_transformer< T >::read_flat ( size_t  i ) const

inline

Returns the value at the given index This function never has side effects.

Parameters

i

The index

Returns

the value at the given index.

visit()

template<etl_2d T>

template<typename V >

void etl::one_if_max_sub_transformer< T >::visit ( V &&  visitor ) const

inline

Apply the given visitor to this expression and its descendants.

Parameters

visitor

The visitor to apply

Friends And Related Function Documentation

operator<<

template<etl_2d T>

std::ostream& operator<< ( std::ostream &  os, const one_if_max_sub_transformer< T > &  transformer  )

friend

Display the transformer on the given stream.

Parameters

os	The output stream
transformer	The transformer to print

Returns

the output stream

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

• include/etl/op/flip_transformers.hpp