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Re: type based aliasing again
- To: Bernd Schmidt <bernds at cygnus dot co dot uk>
- Subject: Re: type based aliasing again
- From: Alexandre Oliva <oliva at lsd dot ic dot unicamp dot br>
- Date: 14 Sep 1999 09:44:38 -0300
- Cc: Joe Buck <jbuck at synopsys dot COM>, gcc at gcc dot gnu dot org, rms at gnu dot org
- References: <Pine.LNX.4.10.9909141328450.20868-100000@biriani.cygnus.co.uk>
On Sep 14, 1999, Bernd Schmidt <bernds@cygnus.co.uk> wrote:
> If, by "cast to union", you mean code of the form
> union foo { double a; int b[2]; };
> double x;
> x = 2.0;
> ((union foo *)&x)->b[1] = 0;
> then this is not even going to work with gcc
But isn't exactly this work-around that we've have been recommending
to the Linux folks? Houston, we have a problem! :-) / 2
How about:
double x;
((union foo *)&x)->a = 2.0;
((union foo *)&x)->b[1] = 0;
Would this work?
--
Alexandre Oliva http://www.dcc.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
oliva@{dcc.unicamp.br,guarana.{org,com}} aoliva@{acm.org,computer.org}
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
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