How to fix warning init() is deprecated : <p>For the code line:</p>

<pre><code>let bytesDecrypted   = UnsafeMutablePointer&lt;Int&gt;()
</code></pre>

<p>I am getting the warning: 
<strong>'init()' is deprecated: init() will be removed in Swift 3.  Use <code>nil</code> instead</strong></p>

<p>What is the correct way to fix this warning?</p>
