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     Copyright (c) 2004 Kris Beevers
    
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<Head>
<Title>Boost Graph Library: astar_visitor</Title>
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<H1>
<pre>
astar_visitor&lt;EventVisitorList&gt;
</pre>
</H1>

This class is an adapter that converts a list of <a
href="./EventVisitor.html">EventVisitor</a>'s (constructed using
<tt>std::pair</tt>) into a <a
href="./AStarVisitor.html">AStarVisitor</a>.


<h3>Example</h3>

See the example for <a href="./EventVisitor.html">EventVisitor</a>.

<h3>Model of</h3>

<a href="./AStarVisitor.html">AStarVisitor</a>

<H3>Template Parameters</H3>

<P>
<TABLE border>
<TR>
<th>Parameter</th><th>Description</th><th>Default</th>
</tr>

<TR><TD><TT>EventVisitorList</TT></TD>
<TD>
A list of <a href="./EventVisitor.html">EventVisitor</a>'s created
with <tt>std::pair</tt>.
</TD>
<TD><TT><a href="./null_visitor.html"><tt>null_visitor</tt></a></TT></TD>
</TR>

</table>

<H3>Where Defined</H3>

<P>
<a href="../../../boost/graph/astar_search.hpp">
<TT>boost/graph/astar_search.hpp</TT></a>

<h3>Member Functions</h3>

This class implements all of the member functions required by <a
href="./AStarVisitor.html">AStarVisitor</a>. In each function the
appropriate event is dispatched to the <a
href="./EventVisitor.html">EventVisitor</a>'s in the
EventVisitorList.

<h3>Non-Member Functions</h3>

<table border>
<tr>
<th>Function</th><th>Description</th>
</tr>

<tr><td><tt>
template &lt;class EventVisitorList&gt;<br>
astar_visitor&lt;EventVisitorList&gt;<br>
make_astar_visitor(EventVisitorList ev_list);
</tt></td><td>
Returns the event visitor list adapted to be an A* visitor.
</td></tr>

</table>

<h3>See Also</h3>

<a href="./visitor_concepts.html">Visitor concepts</a>
<p>
The following 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>.

<br>
<HR>
<TABLE>
<TR valign=top>
<TD nowrap>Copyright &copy; 2004</TD><TD>
<A HREF="http://cs.krisbeevers.com/">Kristopher Beevers</A>,
Rensselaer Polytechnic Institute (<A
HREF="mailto:beevek@cs.rpi.edu">beevek@cs.rpi.edu</A>)
</TD></TR></TABLE>

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