What is the purpose of the statement "(void)c;"?
<p>Sorry for the vague title, but not really sure how to phrase it. So I was looking through the innards of boost::asio (trying to track down some ridiculous delays), and I notice code like this dotted about:</p>

<pre><code>    op_queue&lt;operation&gt; completed_ops;
    task_cleanup c = { this, &amp;lock, &amp;completed_ops };
    (void)c;  // EH?
</code></pre>

<p>Now from the name of the struct that is being initialized, I'm guessing it's using RAII to do some steps on destruction - fine, but what is the purpose of the last line? Have I just missed something completely funky?</p>
