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

[mark at codesourcery dot com]

------- Comment #118 from mark at codesourcery dot com  2007-05-22 18:34 -------
Subject: Re:  [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 wrote:

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

I think it's also worth pointing out to the committee that the more
aggressive aliasing rules (in which only access directly through a union
is allowed) have been GNU C/C++ practice for a long time.  I would guess
that we made this change around the year 2000.  So, there's a large body
of code that conforms to the requirements of the aggressive
interpretation.


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