From:	Vik Heyndrickx <Vik DOT Heyndrickx AT rug DOT ac DOT be>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Trouble with bools
Date:	Fri, 24 Oct 1997 10:55:45 +0200
Organization:	University of Ghent, Belgium
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Message-ID:	<34506291.4CB@rug.ac.be>
References:	<Pine DOT SUN DOT 3 DOT 95 DOT 971021234833 DOT 12442A-100000 AT lurch-fddi>
NNTP-Posting-Host:	eduserv1.rug.ac.be
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

H. Anthony Hoyt wrote:
> 
> Does this work
> 
> for (auto int i = 0 ; i < 640 ; i++)
>    for (auto int j = 0 ; j < 480 ; j++)
>       scrn[i][j] = 0;
> 
> What I know about "auto" is that once you are out of scope (for every new
> "i" value) "j" will be destroyed then recreated.  

Conceptually, you are right. But that is not what the compiler
effectively does. The variable j gets assigned an address and every
instance j gets this same address. The code you get is the same when you
would declare i and j outside the loop.

-- 
+----------------+
| Vik Heyndrickx |
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