title: Expected unqualified-id before '&' token
body: <p>(extremely) inexperienced in C++ but I've been getting along ok until now and this has me stumped. I'm unsure if I've included enough code to diagnose this but I believe it's syntax and might be figured out from the following. I'm getting the error mentioned from the line below:</p>
  
  <pre><code>#pragma once
  #include "cinder/Vector.h"
  #include "cinder/Color.h"
  #include &lt;vector&gt;
  
  class Predator {
  public:
      Predator();
      Predator( ci::Vec3f pos, ci::Vec3f vel );
      void pullToCenter( const ci::Vec3f &amp;center );
      void update( bool flatten, const ci::Channel32f &amp;channel ); // &lt;- error's here
      void limitSpeed();
      void draw();
      void drawTail();
      void addNeighborPos( ci::Vec3f pos );
  </code></pre>
  
  <p>And can't spot anything wrong? I've googled the error and it usually seems syntax related but can't see how it relates here. The line giving trouble is actually used in a previous class and doesn't throw any errors. Thanks in advance.</p>