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() may return a different pointer than the original one but you assign that to temp only so the calling function still works with the original pointer afterwards. Change double_array_size() to return the new pointer returned by realloc() and call

d = double_array_size(d, array_size);

Furthermore you should always check the result fo malloc(), realloc() etc. They may return NULL if there is no more memory available