gn="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><code class="computeroutput">alloc</code></span></p></td>
<td><p>allocator instance to use. </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">begin</code></span></p></td>
<td><p>begin of category range of unique values. </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">end</code></span></p></td>
<td><p>end of category range of unique values. </p></td>
</tr>
<tr>
<td><p><span c