[cfe-dev] Preliminary reinterpret_cast Sema patch

[Sebastian Redl]

Updated patch.
Cast to self is brought in line with GCC's behavior, even though I still 
think that it's wrong. Or maybe it's what was intended, and the standard 
is defective.
Cast to integral of smaller size now fails.
Cast between object and function no longer depends on the NoExtensions 
bit. I have no idea when this will actually be set, and I don't want it 
to unexpectedly break things.

Argiris Kirtzidis wrote:
> And you are right, for C++0x it should probably be allowed without 
> pedantic warnings.
GCC is not yet updated to do this, by the way. Yay, we've got better 
C++0x support (in a very minor subpoint). :-)

Sebastian
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