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Showing content from https://arrayfire.org/docs/helloworld_2helloworld_8cpp-example.htm below:

ArrayFire: helloworld/helloworld.cpp

#include <cstdio>

#include <cstdlib>

int main(int argc, char* argv[]) {

try {

int device = argc > 1 ? atoi(argv[1]) : 0;

printf("Create a 5-by-3 matrix of random floats on the GPU\n");

printf("Element-wise arithmetic\n");

printf("Negate the first three elements of second column\n");

B(

(0, 2), 1) = B(

(0, 2), 1) * -1;

printf("Fourier transform the result\n");

printf("Grab last row\n");

printf("Scan Test\n");

r = constant(2, dims);

printf("Scan\n");

printf("Create 2-by-3 matrix from host data\n");

float d[] = {1, 2, 3, 4, 5, 6};

printf("Copy last column onto first\n");

printf("Sort A and print sorted array and corresponding indices\n");

sort(vals, inds, A);

fprintf(stderr,

, e.

());

throw;

}

return 0;

}

A multi dimensional data container.

Generic object that represents size and shape.

An ArrayFire exception class.

virtual const char * what() const

Returns an error message for the exception in a string format.

seq is used to create sequences for indexing af::array

@ f32

32-bit floating point values

array::array_proxy col(int index)

Returns a reference to a col.

array::array_proxy row(int index)

Returns a reference to a row.

AFAPI void setDevice(const int device)

Sets the current device.

AFAPI array scan(const array &in, const int dim=0, binaryOp op=AF_BINARY_ADD, bool inclusive_scan=true)

C++ Interface to scan an array (generalized) over a given dimension.

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