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

[gdr at integrable-solutions dot net]

------- Comment #5 from gdr at integrable-solutions dot net  2006-08-11 01:20 -------
Subject: Re:   New: [4.2.0 regression] dynamic_cast<void*> disallowed too
rigorously with -fno-rtti

"benjamin at smedbergs dot us" <gcc-bugzilla@gcc.gnu.org> writes:

| Code compiled with -fno-rtti containing a dynamic_cast<void*> used to compile
| and work properly on types with a vtable (the base class can be determined
| entirely using the vtable without any RTTI information). 

RTTI is needed to have dynamic_cast works properly.  Period.

-- Gaby


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28687