, --bar=[&lt;int&gt;]         takes an optional integer value (defaults to 5)</PRE><P ALIGN=LEFT STYLE="margin-bottom: 0cm">
Notice that the -f argument takes a mandatory argument value (eg:
-f4) , whereas the -b argument may or may not be given a value (eg:
-b5 or -b are both legal) even though both are defined in the
argument table in the same way.</P>
<PRE CLASS="western"><B>struct</B> arg_int *foo = arg_int1(&quot;f&quot;,&quot;foo&quot;, NULL,&quot;takes an integer value (defaults to 9)&quot;);
<B>stru