 are event visitors: <a
 href="./predecessor_recorder.html"><tt>predecessor_recorder</tt></a>,
<a href="./distance_recorder.html"><tt>distance_recorder</tt></a>,
<a href="./time_stamper.html"><tt>time_stamper</tt></a>,
and <a href="./property_writer.html"><tt>property_writer</tt></a>.

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<TD nowrap>Copyright &copy; 2004</TD><TD>
<A HREF="http://www.cs.rpi.edu/~beevek/">Kristopher Beevers</A>,
Rensselaer Polytechnic Institute (<A
HREF="mailto:beevek@cs.rpi.edu">beevek@cs.rpi.e