Memory corruption due to word sharing

[Michael Matz]

Hi,

On Thu, 2 Feb 2012, Aldy Hernandez wrote:

> > Seriously - is there any real argument *against* just using the base 
> > type as a hint for access size?
> 
> If I'm on the hook for attempting to fix this again, I'd also like to 
> know if there are any arguments against using the base type.

Sure.  Simplest example: struct s {int i:24;} __attribute__((packed)).

You must access only three bytes, no matter what.  The basetype (int) is 
four bytes.


Ciao,
Michael.