pub fn decode(word: u32) -> Option<(u16, usize)>
Try to decode the given 24-bit word to the nearest codeword, correcting up to 3 errors and detecting 4 errors.
If decoding was successful, return
Some((data, err)), where
data is the 12
data bits and
err is the number of corrected bits. Otherwise, return
indicate an unrecoverable error.