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Mail Archives: djgpp/1997/10/22/00:04:23

Message-Id: <199710220357.NAA14199@rabble.uow.edu.au>
Subject: Re: Trouble with bools
To: hahoyt AT eng2 DOT uconn DOT edu (H. Anthony Hoyt)
Date: Wed, 22 Oct 1997 13:57:46 +1000 (EST)
Cc: djgpp AT delorie DOT com (DJGPP)
In-Reply-To: <Pine.SUN.3.95.971021204921.9037A-100000@lurch-fddi> from "H. Anthony Hoyt" at "Oct 21, 97 09:00:33 pm"
From: Brett Porter <bporter AT rabble DOT uow DOT edu DOT au>
MIME-Version: 1.0

> Little know fact (well, not really) is that you can initalize
> your array as follows.. 
> 
> bool scrn[640][480] = {0};
>
Are you sure? I don't ever recall seeing this done.
 
> You could initalize every variable this way as well (Even 2D, 3D... nD
> arrays) by just putting a comma (,) after ever variable. 
> Ex.
> 
> bool foo[2][3] = { 0, 1, 0, 1, 0, 1};
> 
I'm almost certain this won't work, I think it should be {{0,1},{0,1},{0,1}}

> (although most people tend to do the following to make it easier to
> visualise)
> 
> bool foo[2][3] = { 0, 1, 0
>                    1, 0, 1};
> 
> (Could someone tell me if I'm wrong but I think this is possable.)
> 
> Note though, by default if you initalize one variable of the array but not
> the rest, the rest get set to 0 (zero).  So....
> 
> bool foo[2][3] = {1};
> 
> only sets the first item of the array to 1 but the rest to 0.  As for how
> efficent (sp) this is, I don't know.  There could very well be some un
> desireable affects to this (which I would love to know myself)  but it
> works.  
> 
This is not really a standard as mar as I know. What is wrong with just
memset(foo, 0, sizeof(foo)); ?

>      As for you current problem, I have no idea why it's not looping
> properly.  Is what you posted an exact code snip?  How about walking
> though it with rhide?
> 
I couldn't see anything wrong with it either.

Brett

-- 
"Who here believes in telekenesis? Raise MY hand!"
--
Brett Porter
bporter AT rabble DOT uow DOT edu DOT au

http://www.geocities.com/CollegePark/Union/3596
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