/TD>
<TD></TD>
</TR>

<TR><TD><TT>CostType</TT></TD>
<TD>
A type that can be used with the <tt>compare</tt> and
<tt>combine</tt> functions passed to A*.  Typically an integer or
floating point type.
</TD>
<TD></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 the single member function required by <a
href="./AStarHeuristic.html">AStarHeuristic</a>:

<table border>
<tr>