realloc structure with function in C

Question

My C program is crashing and I am too new to figure it out. It\'s very simple so far and I imagine the code is enough to figure out what is going wrong.

I am simply try

Answer 1

Realloc reallocates memory, so probably memory pointed by d will be released, so double_array_size has to edit d, you could try:

void double_array_size(struct course** d, int new_size){
*d = realloc(*d, new_size * sizeof(struct course));
.
.
.
}