Function encode_to_slice 

pub fn encode_to_slice<T>(bytes: T, out: &mut [u8]) -> Result<(), HexError>
where
    T: AsRef<[u8]>,

Encode bytes into a caller-provided buffer.

out must be exactly 2 * bytes.len() long.

Errors

Returns HexError::LengthMismatch if out is sized incorrectly.