Function pad_size

Source
pub fn pad_size(size: usize) -> usize
Expand description

compute padding size.

RFC5766 stipulates that the attribute content is a multiple of 4.

ยงUnit Test

assert_eq!(faster_stun::util::pad_size(4), 0);
assert_eq!(faster_stun::util::pad_size(0), 0);
assert_eq!(faster_stun::util::pad_size(5), 3);