title: How the Qt source code is organized
body: <p>I am trying to find the Qt implementation for <code>QLinkedList::operator+( const QLinkedList&lt;T&gt; &amp;list )</code>, but I can't make sense of the Qt source code.  This is part of Qt 4.8.4:</p>
  
  <p>I found the declaration in the .h:</p>
  
  <p><code>QLinkedList&lt;T&gt; operator+(const QLinkedList&lt;T&gt; &amp;l) const;</code></p>
  
  <p>But in the .cpp all I see is this:</p>
  
  <pre><code>/*! \fn QLinkedList&lt;T&gt; QLinkedList::operator+(const QLinkedList&lt;T&gt; &amp;other) const
  
      Returns a list that contains all the items in this list followed
      by all the items in the \a other list.
  
      \sa operator+=()
  */
  </code></pre>
  
  <p>Where is the definition?  What organization is Qt using?</p>