From:	"John M. Aldrich" <fighteer AT cs DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: For loop problem
Date:	Sun, 05 Apr 1998 22:04:58 -0400
Organization:	Two pounds of chaos and a pinch of salt.
Lines:	33
Message-ID:	<3528384A.7BAD@cs.com>
References:	<3527FEA6 DOT 54FA AT vegas DOT infi DOT net>
NNTP-Posting-Host:	ppp225.cs.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Simz wrote:
> 
> When ever I try to use a for loop in DJGPP with a char (or any type for
> that matter), the loop never stops when I try to loop to the max value
> that type can hold. For example
> 
> unsigned char index = 0;
> unsigned char array[256];
> for (index = 0; index < 256; index++)
>         array[index] = index;

Use a larger type.  What you describe will not work with any C compiler,
much less djgpp.  And since array indexes are ints, there's no reason
not to use an int in the loop instead of a char.  Putting an int into a
char array is no problem; it's an implicit typecast.  I should also
mention that initializing index and then setting it in the for loop is
redundant.

    unsigned char array[256];
    int index;
    for ( index = 0; index < 256; index++ )
        array[index] = index;   /* or (char) index if it makes you 
                                   feel better */

hth

-- 
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|      John M. Aldrich       | "Animals can be driven crazy by pla- |
|       aka Fighteer I       | cing too many in too small a pen.    |
|   mailto:fighteer AT cs DOT com   | Homo sapiens is the only animal that |
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