>.</p>
</dd>
<dt class="hdlist1"><code>OPT_SET_INT(short, long, &amp;int_var, description, integer)</code></dt>
<dd>
<p>Introduce an integer option.
<code>int_var</code> is set to <code>integer</code> with <code>--option</code>, and
reset to zero with <code>--no-option</code>.</p>
</dd>
<dt class="hdlist1"><code>OPT_STRING(short, long, &amp;str_var, arg_str, description)</code></dt>
<dd>
<p>Introduce an option with string argument.
The string argument is put into <code>str_var</code>.</p>
</dd>
<dt class="h