i need to make my array smaller to save memory and for some reason my program crashes when i call the print function i made to read out the numbers in the aray. i cant seem to find out why this only happens with the larger number because it works for making the array one size smaller just not 4 in the test I'm doing. when i do the test for re sizing 4 smaller it seems like it never saves the array because i put the print function be the realloc and it still crashes. also when i run the program with out pauses it crashes it would be nice to know why it did that too (same function)

here is the function

Code:#include <stdio.h> #include <stdlib.h> #include <string.h> int main(void) /******code******/ //////////////////////////////////////////////////////////////////////////////// //Preconditions: p and q are pointers to struct integers. // //Postconditions: A new struct integer is created that // stores the sum of the integers pointed to // by p and q and a pointer to it is // returned. // //Description: //////////////////////////////////////////////////////////////////////////////// struct integer* add(struct integer *p, struct integer *q) { struct integer* big_number; int carry = 0; int test; int largest; int i; int j = 0; test = compare(p, q); if(test == 1) { largest = p->size; } else { largest = q->size; } big_number = malloc(sizeof(struct integer)); big_number->digits = malloc(largest + 1 * sizeof(int)); for(i = 0; i == largest; i++) { big_number->digits[i] = 0; } for(i = 0; i < largest +1; i++) { if(p->size <= i && q->size <= i) { big_number->digits[i] = carry; carry = 0; break; } else if(p->size <= i) { big_number->digits[i] = q->digits[i] + carry; carry = 0; } else if(q->size <= i) { printf("**test** i=%d", i); big_number->digits[i] = p->digits[i] + carry; carry = 0; } else { big_number->digits[i] = p->digits[i] + q->digits[i] +carry; if(big_number->digits[i] > 9) { big_number->digits[i] -= 10; carry = 1; } else { carry = 0; } } system("pause"); //i have to put a pause here or the program will crash with no error message } for(i = largest, j = 0; big_number->digits[i] == 0 && i > 0; i--, j++); big_number->digits = (int*)realloc(big_number->digits,(largest-j) * sizeof(int)); big_number->size = largest - j + 1; //the program crashes here with a windows message saying it "needs to close" print(big_number); return big_number; } //////////////////////////////////////////////////////////////////////////////// //Preconditions: p is a pointer to a big integer. // //Postconditions: The big integer pointed to by p is // printed out. // //Description: //////////////////////////////////////////////////////////////////////////////// void print(struct integer *p) { int i; for(i = p->size -1 ; i >= 0; i--) { printf("%d", p->digits[i]); } printf("\n"); }