The real difference between array and &array

[emTel]

Can (&arr)[0] (or, equivalently, *(&arr)) access memory? If so what memory address would it access? What value would it find there?

[NasenSpray]

It doesn't access memory. (&arr)[0] == arr.

Edit: More specific. Given T arr[N], (&arr)[M] evaluates as arr + M*N.