Re: [boost] [xpressive] Performance Tuning?

Subject: Re: [boost] [xpressive] Performance Tuning?
From: Edward Grace (ej.grace_at_[hidden])
Date: 2009-07-29 05:44:39

>> Nice idea.  I wondered if it could be applied to functions or
>> function pointers.  I'm not convinced it's properly supported in
>> this context.  Anyhow, I think a 'global variable' trick works. A
>> more elegant solution is welcome!
>
> Volatile will have more side effects and prevent optimization that we
> might want the compiler to make

Thanks for that comment.

I looked into the true meaning of 'volatile' and unfortunately I  
don't think it's quite appropriate either.  I've spotted a trick in  
something highlighted by Joel de Guzman regarding ( I think ) the  
following:

   http://tinyurl.com/kk858o

to avoid dead code and control certain cache behaviour. I think this  
is what I want to ensure.  It appears that using boost::bind has a  
similar effect (at least as far as dead code is concerned) - but I do  
not want to rely on that.

-ed

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"No more boom and bust." -- Dr. J. G. Brown, 1997