Assigning arrays and slices of different sizes | Zig Programming Language | Page 1

Im writing a voice chat application to learn zig and i am attempting to get STUN working right now, i want to submit a bind request but im unsure on how to do this right? heres my current code, my issue is on the line where i assign req to BIND_REQUEST_HEAD

const BIND_REQUEST_HEAD = [8]u8{
    0x00, 0x01, // type
    0x00,          0x00, // length
    STUN_MAGIC[0], STUN_MAGIC[1],
    STUN_MAGIC[2], STUN_MAGIC[3],
};

fn bindRequest() ![20]u8 {
    var rng = std.crypto.random;

    var req: [20]u8 = BIND_REQUEST_HEAD;
    for (&req[8..]) |*n| {
        n.* = rng.random();
    }

    return req;
}

#Assigning arrays and slices of different sizes