From: pavenis AT lanet DOT lv
To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>, djgpp-workers AT delorie DOT com
Date: Thu, 21 Jun 2001 14:03:00 +0300
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Subject: Re: Mysterious id in dbgcom.c
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Reply-To: djgpp-workers AT delorie DOT com

On 21 Jun 2001, at 13:32, Eli Zaretskii wrote:

> 
> On Thu, 21 Jun 2001 pavenis AT lanet DOT lv wrote:
> 
> > > > +   (void) id;
> > > 
> > > Wait until GCC begins to bitch about "expression has no effect" ;-)
> > 
> > At least it works with gcc-3.0 and earlier versions. I don't know what 
> > will happen after some years. At least now it seems that explicitly
> > casting the result to void removes the warning
> > 'warning: statement with no effect'. What is said about this
> > in C standard?
> 
> I don't think the standard has something about such warnings.  However, 
> many proprietary compilers, such as the ones from AIX and SGI, are very 
> noisy about such code, and I'm not sure GCC maintainers think they 
> shouldn't do the same, judging by the latest changes in warning policy.

Yes. However explicit casting to void silences warning at least for GCC 
versions I tried and also for BCC 5.5 command line compiler

Andris