How to make this cast implicit?
<p>I have</p>

<pre><code>  class Wrapper : Base
{
Wrapper(WrappedObject&amp; obj)
//...
};

void fun(Base&amp; b);
</code></pre>

<p>I want to be able to directly call <code>fun</code> with a <code>WrappedObject</code> instance, is such an implicit conversion possible? how?</p>

<p>edit :
<a href="http://ideone.com/ilfE8" rel="nofollow">http://ideone.com/ilfE8</a> i still can't make this example to work, what do I need to change?
thanks</p>
