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          <tr>
            <td width="586"><font face="Courier New">template
&lt;typename T, typename rectangle_type&gt;<br />
bool <b>extents</b>(rectangle_type&amp; bbox, const T&amp; polygon)</font></td>
            <td>Sets object that models rectangle to the bounding box
of an object that models polygon_45_with_holes and returns true.&nbsp;
Returns false and leaves bbox unchanged if polygon is empty.</td>
          </tr>
          <tr>
            <td width="586"><font face="Courier New">template
&