RE: Opinions Wanted: List API loop logic

[CWilt@xxxxxxxxxxxx]

Scott,

Thanks for the info.  Didn't realize it worked that way.


Charles
           





> -----Original Message-----
> From: Scott Klement [mailto:klemscot@xxxxxxxxxxxx]
> Sent: Friday, May 21, 2004 2:04 PM
> To: RPG programming on the AS400 / iSeries
> Subject: RE: Opinions Wanted: List API loop logic
> 
> 
> 
> Hi Charles,
> 
> 
> And even if the compiler did let you use a pointer as a loop 
> index, you'd
> still have the risk of an MCH0601, because a FOR loop always 
> increments
> the index one extra time.
> 
> Here's a really trivial example that illustrates this:
> 
>      D x               s             10I 0
>      c                   for       x = 1 to 10
>      c                   endfor
>      c                   dsply                   x
>      c                   eval      *inlr = *on
> 
> What will the value of X be when it does the DSPLY?   It'll 
> be 11.  One
> higher than the end of the loop...  When you do that with a 
> pointer, you
> run the risk of the MCH0601, which is what Barbara was 
> warning me against.
> 
> I suppose I could write my own FOR-like op-code :)