From:	Weiqi Gao <weiqigao AT a DOT crl DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: question about if statements!
Date:	Thu, 15 Jul 1999 19:53:28 -0500
Organization:	CRL Network Services
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Message-ID:	<378E8288.3A8376BF@a.crl.com>
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To:	djgpp AT delorie DOT com
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Marp wrote:
> 
> Mohamed Saad <bazramit AT yahoo DOT com> wrote in message
> news:19990715204430 DOT 18320 DOT rocketmail AT web105 DOT yahoomail DOT com...
> >     does djgpp continue to evaluate an expression of
> > an if statement even if the result is readily
> > available?
> >     i.e.  consider this...
> >     if (0&&dummy1)
> >        statement here;
> >
> >     will it evaluate dummy1??
> 
> No. As a shortcut (for speed) if the left side of the && operator is false,
> the right side won't be tested. Similarly, with the || operator, if the left
> side is true, the right side won't be tested. I think you can safely rely on
> this behavior for all C and C++ compilers, but I'm not absolutely sure of
> that.

This is the standard behavior.

-- 
Weiqi Gao
weiqigao AT a DOT crl DOT com

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