From: "Marp" <Marp AT 0 DOT 0 DOT 0 DOT 0>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: question about if statements!
Date: Thu, 15 Jul 1999 17:32:10 -0400
Organization: Netcom
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To: djgpp AT delorie DOT com
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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;
>
>     well 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.