where

Locate the indices of non-zero elements. More...

Functions
AFAPI array	where (const array &in)
	C++ Interface for finding the locations of non-zero values in an array. More...
AFAPI af_err	af_where (af_array *idx, const af_array in)
	C Interface for finding the locations of non-zero values in an array. More...

Detailed Description

Locate the indices of non-zero elements.

Return type is u32 for all input types

The locations are provided by flattening the input into a linear array.

Function Documentation

AFAPI af_err af_where	(	af_array *	idx,
		const af_array	in
	)

C Interface for finding the locations of non-zero values in an array.

Parameters

[out]	idx	will contain indices where in is non-zero
[in]	in	is the input array.

Returns

AF_SUCCESS if the execution completes properly

AFAPI array af::where

(

const array &

in

)

C++ Interface for finding the locations of non-zero values in an array.

Parameters

[in]

in

is the input array.

Returns

linear indices where in is non-zero

Examples:

computer_vision/harris.cpp, image_processing/binary_thresholding.cpp, and machine_learning/naive_bayes.cpp.