hat defines the essential data for all arguments.">Arg</a> to. </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>v</em>&nbsp;</td><td>- An optional visitor. You probably should not use this unless you have a very good reason. </td></tr>
  </table>
  </dd>
</dl>

<p>Definition at line <a class="el" href="ValueArg_8h_source.html#l00300">300</a> of file <a class="el" href="ValueArg_8h_source.html">ValueArg.h</a>.</p>

<p>References <a class="el" href="classTCLAP_1_1CmdLineInterface.html#a13b29ab754