[Bug libstdc++/29286] [4.0/4.1/4.2/4.3 Regression] placement new does not change the dynamic type as it should

["gdr at cs dot tamu dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #117 from gdr at cs dot tamu dot edu  2007-05-22 18:19 -------
Subject: Re:  [4.0/4.1/4.2/4.3 Regression] placement new does not change the
dynamic type as it should

"dberlin at dberlin dot org" <gcc-bugzilla@gcc.gnu.org> writes:

[...]

| And if you've raised them now, can you please try to ensure that the
| discussion covers what to do if the union'ing happens outside the
| current translation unit?
| 
| IE What to do about cases where
| 1. One union member is written
| 2. We are being passed the address of a union member at the same offset
| 3. It then it is casted to a pointer to the type of the union member from 1.
| 4. It is stored/loaded


Thanks for reminding all those points.  I'll ensure that I make those
points stand in subsequence messages.


-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29286