foo = macro[T](addr: &u64, count: u64) []T
{
    >pointer: &T = #pointer_cast(addr);
    return pointer[..count];
}

[export] main = fn [cc(c)] () s32
{
    >some_var: u64 = 0xaaaaaaaaaaaaaaaa;
    >result: []&u8 = foo[&u8](&some_var, 1);
    if (#int_from_pointer(result.pointer) != 0xaaaaaaaaaaaaaaaa) #trap();
    if (result.length != 1) #trap();
    return 0;
}