Re: [EXTERNAL] RE: File having an array using new free form

"RPG400-L" <rpg400-l-bounces@xxxxxxxxxxxx> wrote on 06/12/2018 03:03:58
PM:

Personally, if I understand Dave's solution correctly, I like his

better.

With the solution you're using, you are relying on field Camtday01

starting

in position 97 forever. What happens if you ever change the length of a
field in this record before Camtday01? The program will recompile just
fine, but will likely bomb once you run it because it is expecting your
array to start in position 97 but it doesn't anymore. If you're really
unlucky, it won't bomb, but will give bad results that you might not
recognize until it's too late.

With Dave's solution, again if I understand it correctly, you don't have

to

rely on Camtday01 starting in position 97. Instead, it will use the

address

of Camtday01 as the starting point, no matter where it is actually

located

in the record.

And lest anyone misunderstand exactly what was suggested vs. what
was implemented... Alan combined two different suggestions to come up
with his solution. What Birgitta suggested is not what Alan implemented.
Birgitta's suggestion would work just fine even if the fields shifted in
the record. I use my suggestion (because it is less work to code) in the
case that the fields are actually contiguous in the record. I would use
Birgitta's suggestion when they are not -- although, as I said, her
suggestion would work in either case.


Sincerely,

Dave Clark