-length</STRONG> <EM>digest</EM> =&gt; <EM>number</EM></TT><BR /></DIV><P>Returns the length of the digest computed by <EM>digest</EM>, which
may be a digest-name or a digest instance.</P><H3 ID="digest-tips">Miscellaneous</H3><P>Ironclad digests are CLOS objects; the interesting thing about this
for most purposes is that functions like <TT>REINITIALIZE-INSTANCE</TT> are
supported.  This means one can write a fairly efficient clone of the <TT>md5sum</TT> program like so:</P><PRE>(defun digest-sum-files (dig