Segmentation Fault - declare and init array in C

Question

I am very new to C. coming from Python, Java and C# worlds. This might be a stupid question but I am getting segmentation fault:

// struct for storing matrices
t         


        

Answer 1

You have not allocated any memory to hold the float values. Prior to the memcpy you need something like:

A.elts = malloc(9* sizeof(float));