Function bao::decode::hash_from_encoded

pub fn hash_from_encoded<T: Read>(reader: &mut T) -> Result<Hash>

Given a combined encoding beind a Read interface, quickly determine the root hash by reading just the root node.

Example

let (hash1, encoded) = bao::encode::encode_to_vec(b"foobar");
let hash2 = bao::decode::hash_from_encoded(&mut &*encoded).unwrap();
assert_eq!(hash1, hash2);