cs420/examples/pointer.c

int* foo(int *a){
   return a;
}

int main(){
    int a = 1;
    int *p = &a;
    int **p2 = &*&p;
    int *p3 = *&p;

    *&*foo(*p2) += 1;
    *foo(p3) += 1;
    
    return a == 3;
}