add#
Append data to the message being hashed.
Every argument is taken as bytes (SvPVbyte); a string holding a character above U+00FF croaks Wide character in subroutine entry. Returns the object, so calls chain; undef when called on anything that is not a Digest::SHA.
Synopsis#
$sha->add($chunk1, $chunk2)->add($chunk3);
print $sha->hexdigest;