Here we have two function pointer calls that assigned the returned values to variables in different ways.

int *func()
{
    int *i = calloc(2, sizeof(int));
    *i = 100;
    *(i + 1) = 200;
    printf("i address: %pn", i);
    return i; // or 0, both represent a null pointer
}

int main()
{
    int(*(*x)())[20] = &func;
    int *i = (*x)();
    int *p = *(*x)();
    printf("%dn", *p);
    printf("%dn", *i);

    return 0;
}

The code outputs:

i address: <some address>
i address: <some address>
100
100

I expected int *p = *(*x)(); printf("%dn", *p); to raise an error.

Why do these two different calls output the same value?