Function decode_hard 

pub fn decode_hard(
    code: &LdpcCode,
    received: &[u8],
    decoded: &mut [u8],
    max_iters: usize,
) -> Result<usize, LdpcError>

Convenience decoder for hard-decision received data.

received is code.n / 8 bytes. decoded receives code.k / 8 bytes of corrected information. Returns Ok(iterations) on success.