Re: Why doesn't combine like volatiles? (volatile_ok again, sorry!)

[Mike Stump <mrs at apple dot com>]

On Nov 28, 2005, at 11:12 AM, Robert Dewar wrote:
> Mike Stump wrote:
> > I disagree.  For example, there is behavior mandated by the  
> > Standard  for C, such as this, that, reasonably, I think we have  
> > to follow.   You can argue that we don't have to follow the  
> > standard but I'm not  just going to listen to you.
>
> Hmm, I guess I misread the standard, I thought it said the effect
> was undefined.

Only in one direction does the standard make it undefined, as I  
quoted.  I know why they do this, and I am arguing that that latitude  
should not be used to try and `optimize' things to make them behave  
differently (such as calling abort for example) in the presence of  
volatile.