Re: Can't See the Difference

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Hi Jerry,

I suspect that the problem isn't in the code you posted, but rather is 
somewhere else in the program (that you haven't thought of.)

Could you post a simple (but complete) program that we could load and 
run that demonstrates the problem?  I realize that this is a bit more 
work than just copy/pasting snippets from your code -- but if you can 
make a simple program that only has the needed code, and doesn't rely on 
any external files (since we won't have those) that reproduces the same 
problem, then we'll be sure to have everything we need.

If I'm able to load/run the program on my computer, I'll be able to 
really troubleshoot it.  (Rather than just giving it a quick glance.)

That's about all I can offer.



On 2/28/2012 1:13 PM, Jerry C. Adams wrote:
> I have code in two places in my program that loop through a subfile.  The
> code is essentially the same.  The first set is in a subroutine and the
> second set is in a subprocedure.  The subprocedure set works; the subroutine
> set doesn't.  It's the latter that's got me puzzled (obviously).
>
> I have stared at this all morning and can't see any difference between the
> two sets of code, but I've only got one eye and it's aged and often blurry
> after staring at a terminal most of the day.  Maybe someone else can point
> out what is probably an obvious flaw that I can't see.
>
> Subroutine code (not working):
>
> IF  #limit>  *Zeros;
>    FOR x = 1 to  #limit;
>      CHAIN x DTU020A;
>      IF  %found();
>        (some code)
>
>
> Subprocedure code (working):
>
>
>
> IF  #Limit>  *Zeros;
>    FOR x = 1 to  #Limit;
>      CHAIN x DTU020A;
>      IF  %found();
>        (different code)
>
> In the interest of full disclosure: the definitions of the variables are:
>
> D #Limit          S                   Like(rrna)
> D X               S                   Like(rrna)
>
> And rrna is the relative record number of the subfile record (DTU020A).  The
> debug of the subroutine code on the CHAIN 'x' has a value of '1'.  After the
> IF %found(), the subroutine bypasses all of the "some code" stuff.  The FOR
> loop runs for as many records as there are in the subfile; it's the CHAIN in
> the subroutine that doesn't find the subfile record.