Friend wrote this a long time ago when he was a young C++ coder.  It&#x27;s hosted on another friends&#x27; Github but the author is John Brooks, the author of Ricochet.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;rburchell&#x2F;fastdup" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;rburchell&#x2F;fastdup</a><p>:-)