eturn value is available as global static boolean variable named
<code>&lt;flag&gt;_validator_registered</code>.</p>


<h2> <A name=together>Putting It Together: How to Set Up Flags</A> </h2>

<p>The final piece is the one that tells the executable to process the
commandline flags, and set the <code>FLAGS_*</code> variables to the
appropriate, non-default value based on what is seen on the
commandline.  This is equivalent to the <code>getopt()</code> call in
the getopt library, but has much less overhead to