<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Ron,<DIV><BR class="khtml-block-placeholder"></DIV><DIV>I bet Andreas is right. I didn't notice in your original post that this code was concurrent. Let us know!<DIV><BR><DIV><DIV>On 15 Feb 2007, at 16:59, Ron Teitelbaum wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="4" style="font: 14.0px Helvetica"><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>^[:a :b | (a nodeID bitXor: self networkID) < (b nodeID bitXor: self</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="4" style="font: 14.0px Helvetica">networkID)]</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px Helvetica; min-height: 17.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="4" style="font: 14.0px Helvetica">The values are 256 bit integers.<SPAN class="Apple-converted-space"> </SPAN>self networkID is an instance variable on</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Helvetica" size="4" style="font: 14.0px Helvetica">the model that creates the sortBlock.</FONT></P> </BLOCKQUOTE></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>On a different note: I inferred that you were concerned with speed. If this is the case, wouldn't it make sense to do the self networkID once when the block is created, rather than 2 n log n times when you do the comparisons. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>Andrew</DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Andrew P. Black</DIV><DIV>Department of Computer Science</DIV><DIV>Portland State University</DIV><DIV>+1 503 725 2411</DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></DIV></DIV></BODY></HTML>