http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53225

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #23 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-05-04 
21:56:25 UTC ---
You don't even have a B::this_type typedef, how could (this_type*) possibly
refer to anything except A*?  Just by calling it "this_type" doesn't make it
magic that the compiler adjusts to refer to teh dynamic type.

Daniel, can you explain it to him better?

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