CODEWITHSUNDEEP
c++arrayfire
Dinesh K.
Dinesh K.

Reputation: 323

Getting seg fault from Simple arrayfire constructor

I am getting a Segmentation Fault, from calling a simple arrayfire constructor.

#include <arrayfire.h>
int main(){
    af_array a;
    int N  = 10;
    dim_t dims = 10;
    af_randu(&a, N, &dims, f32);
    af::array b(a);
    return 0;
}

Upvotes: 0

Views: 163

Answers (1)

shehzan
shehzan

Reputation: 331

af_randu is C-API function in ArrayFire. Ideally, there is no need for users to be directly calling these functions.

What you would need to call is af::randu(). So your call to randu would be:

af:array b = af::randu(N, f32);

The following is just to answer the question asked, the C-API for af_randu is

AFAPI af_err af_randu(af_array *out,
                      const unsigned ndims,
                      const dim_t *const dims,
                      const af_dtype type 
)

So the second argument is ndims (number of dimensions), which in your case is 1. Hence your call to af_randu is:

af_randu(&a, 1, &dims, f32);

If you were doing a matrix of lets say 10x10, then you would do

dim_t dims[] = {10, 10}
af_randu(&a, 2, dims, f32);

Full disclosure: I am a developer for ArrayFire.

Upvotes: 2

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