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[Bug c++/15531] dynamic_cast fails (at runtime) when dependant on friendship of invoker
- From: "bangerth at dealii dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 May 2004 23:35:03 -0000
- Subject: [Bug c++/15531] dynamic_cast fails (at runtime) when dependant on friendship of invoker
- References: <20040518232016.15531.gccbugs@contacts.eelis.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From bangerth at dealii dot org 2004-05-18 23:35 -------
Maybe I should be a little more explicit: the cast actually
happens inside the dynamic_cast operator, but that isn't a
friend of the two classes (and can't be made a friend). Thus,
it can't do the cast and returns zero. The fact that the
call to the dynamic_cast is inside a class that _can_ do this
is immaterial here.
W.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15531