OBJ-C: Primitive Array Length

// this accurately obtains the size

int INTS[] = {1, 2, 3, 4, 5};
int length = sizeof INTS / sizeof INTS[0];
RESULT => length = 4

// this fails. returns the size of the pointer (4 bytes)

int* INTS_PTR = &INTS[0];
int length = sizeof INTS / sizeof INTS[0];
RESULT => length = 1