[Bug c++/28687] [4.2 regression] dynamic_cast<void*> disallowed too rigorously with -fno-rtti

benjamin at smedbergs dot us gcc-bugzilla@gcc.gnu.org
Thu Aug 10 20:46:00 GMT 2006

------- Comment #3 from benjamin at smedbergs dot us  2006-08-10 20:46 -------
This cast in particular doesn't need RTTI, because the offset to the most
derived class is in the vtable. Mozilla uses this cast to determine the
concrete type for logging purposes, without needing or wanting RTTI



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