Why would this give a Use of uninitialised value of size 8

Question

In my code I have a class named membrane with a function named exciteMod(), a function named decide() and a variable named delta

Answer 1

lets say you have t number of values needed to be stored. then use this:

int *p = (int *) malloc(t*(sizeof(int)+1));
memset(p,0,t*(sizeof(int)+1));