ct</B> arg_int *bar = arg_int1(&quot;b&quot;,&quot;bar&quot;, NULL,&quot;takes an optional integer value (defaults to 5)&quot;);
<B>struct</B> arg_end *end = arg_end(20);
void* argtable[] = {foo,bar,end};
int nerrors;</PRE><P ALIGN=LEFT STYLE="margin-bottom: 0cm">
<BR>
</P>
<P ALIGN=LEFT STYLE="margin-bottom: 0cm">To have the -b argument
accept optional values we must set the following flag in its argtable
hdr structure.</P>
<P ALIGN=LEFT STYLE="margin-bottom: 0cm"><BR>
</P>
<PRE CLASS="western" STYLE="marg