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From: Der Herr Hofrat <der.herr@mail.hofr.at>
Message-Id: <200209021153.g82Brnp29702@hofr.at>
Subject: Re: <optimized out>
In-Reply-To: <616BE6A276E3714788D2AC35C40CD18D56176B@whale.softwire.co.uk> from
 Rupert Wood at "Sep 2, 2002 01:38:00 pm"
To: Rupert Wood <me@rupey.net>
Date: Mon, 02 Sep 2002 05:50:00 -0000
CC: "'Der Herr Hofrat'" <der.herr@mail.hofr.at>, gcc-help@gcc.gnu.org
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> Der Herr Hofrat wrote:
> 
> > then gcc with -O2 seems to directly push 3 on the stack and call
> > printf and never used a local variable so I can't access it in the
> > debuger. Is there any simply way of preventing this other than doing
> > stupid things like introducing some useless statements to force a
> > local variable but without turning of -O2 for the entire file ???
> 
> Not sure why you'd want to do this unless you've got problems with the
> optimized code; you could always debug at -O0.
> 
> However, declaring the variable a 'volatile' ought to do what you want.

yup - thanks  volatile int i;  did it.

thx !
hofrat