title: Linkage of class names
body: <blockquote>
    <p>$3.5 - "In addition, a member
    function, static data member, class or
    enumeration of class scope has
    external linkage if the name of the
    class has external linkage."</p>
  </blockquote>
  
  <p>Any inputs on what does it mean by <code>'if the name of the class has external linkage'</code>?</p>
  
  <p>Is the hint on 'local classes' (which probably don't have any linkage) as compared to class defined in namespace scope, and namespace scope classes defined with static specifier (which have internal linkage???)?</p>