[Bug c++/12277] Warn on dynamic casts with known NULL results.

------- Comment #6 from bangerth at gmail dot com  2009-07-06 20:56 -------
(In reply to comment #3)

I had to stare at the testcase in comment #3 for a little while and thought
others may have to as well: it fails because the inheritance from Base is
*private*, not because the dynamically created object is not derived a Derived
object at all.

W.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12277