Operator <?= in C/C++
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/3437410/c-extension-and-operators">C extension: &lt;? and &gt;? operators</a><br>
  <a href="http://stackoverflow.com/questions/5199630/what-does-the-operator-mean">What does the &gt;?= operator mean?</a>  </p>
</blockquote>



<p>I was googling some C++ codes on the internet and just found this:</p>

<pre><code>num &lt;?= num2-num3+num4;
</code></pre>

<p>Does anyone knows what this operator stands for? I googled for it but found anything.</p>
