fault coordinate type traits specialization for the
32-bit signed integer type:</p>

      <font style="font-family: 'Courier New',Courier,monospace;" face="Courier New">
      <p>template &lt;typename T&gt;<br>
struct voronoi_ctype_traits;<br>
      <br>
template &lt;&gt;<br>
struct voronoi_ctype_traits&lt;int32&gt; {<br>
&nbsp;&nbsp;&nbsp; typedef int32 int_type;<br>
&nbsp;&nbsp;&nbsp; typedef int64 int_x2_type;<br>
&nbsp;&nbsp;&nbsp; typedef uint64 uint_x2_type;<br>
&nbsp;&nbsp;&nbsp; typedef extended_in