Function bao::decode::decode_in_place

pub fn decode_in_place(encoded: &mut [u8], hash: &Hash) -> Result<usize, Error>

Decode a combined mode encoding in place, overwriting the encoded bytes starting from the beginning of the slice. This returns the number of decoded bytes if successful, or an error if the encoding doesn’t match the hash.

If the std feature is enabled, as it is by default, this will use multiple threads via Rayon. This function is slower than decode, however, because only the hashing can be parallelized; copying the input bytes around has to be done on a single thread.

Example

let input = b"some bytes";
let (hash, mut buffer) = bao::encode::encode_to_vec(input);
let content_len = bao::decode::decode_in_place(&mut buffer, &hash).unwrap();
assert_eq!(input.len(), content_len);
assert_eq!(input, &buffer[..content_len]);