title: CMutablePointer - how to access it?
body: <p>Can anybody explain how to access <code>CMutablePointer&lt;CGPoint&gt;</code> presented below? I can't find the syntax for it. It used to be <code>-&gt;</code> in <code>Objective-C</code>, but here none of my solutions works. The solution presented in <a href="https://stackoverflow.com/questions/24051395/how-to-go-from-cmutablepointercgfloat-to-cgfloat-in-swift">this link</a> works in the opposite way I need to find out.</p>
  
  <pre><code>func scrollViewWillEndDragging(scrollView: UIScrollView!, withVelocity velocity: CGPoint, targetContentOffset: CMutablePointer&lt;CGPoint&gt;) {
      let newPage = targetContentOffset-&gt;x + 1;
   }
  </code></pre>