title: Is there any reason to catch an exception by value?
body: <p>Sutter and Alexandrescu's coding standards <a href="http://www.informit.com/articles/article.aspx?p=373339" rel="nofollow">tell us</a> to catch exceptions by reference.</p>
  
  <p>Of course, blanket recommendations like this often have occasional exceptions (no pun intended). Are there any use cases where catching an exception by value should be preferred?</p>