title: using declarations and const overloads
body: <p>Suppose I have two versions of <code>operator-&gt;</code> (overloaded on const) in a base class. If I say</p>
  
  <pre><code>using Base::operator-&gt;;
  </code></pre>
  
  <p>in a derived class, will I get access to both versions or just the non-const one?</p>