What does this define do?
<p>What does this define do, and how would I use it?</p>

<pre><code>#define UNUSED(VAR) (void)&amp;(VAR)
</code></pre>

<p>Does it require a definition anywhere? This is in the header.</p>

<p><strong>edit</strong> - I don't really understand what is going on here. is this a macro'd cast to void? doesn't that negate the variable?</p>
