Re: Unreferenced variables not showing up in debug

Good find, Charles!

Still completely baffled as to the value of OPTION(*UNREF), and I guess
Barbara suggests that no one (still there) knows why the ILE compiler
generates these in the first place, but at least I have my answer.

Thanks!
- Dan

On Wed, Jun 17, 2015 at 1:01 PM, Charles Wilt <charles.wilt@xxxxxxxxx>
wrote:

WAD...
"With the default OPTION(*UNREF), after a READ to a file, you might want

to

look at a few fields to see what record you got. If you didn't use a

field

in the module, the compiler wouldn't load it, so it would have blanks or
zeros. This can be extremely confusing."

https://www.ibm.com/developerworks/community/blogs/b542d3ac-0785-4b6f-8e53-f72051460822/entry/are_you_using_option_nounref_if_so_good_if_not_read_on?lang=en

Charles

On Wed, Jun 17, 2015 at 11:33 AM, Dan <dan27649@xxxxxxxxx> wrote:

With an RPGLE program compiled with OPTION(*UNREF), I would expect that
input fields defined but not used in the program (i.e. *RNF7031: The

name

or indicator is not referenced) would still be available to view the

values

in debug. FWIW, this is a very simple, 20 line program, no subprocs,

and

we are on v7r1.

When I use the EVAL command on the unreferenced fields in debug, it
displays a blank result. For example:
FIELDA = ' '
... even though I know the value in the file is 'ABC123'.

My workaround was to CLEAR each of the unreferenced fields inside of an

IF

group that would never test true. Now, debug shows the values

correctly.

I thought I remembered there was an option to include these

unreferenced

fields so their values could be viewed in debug and/or a dump. (Maybe

it

was just the latter?) And the *UNREF option seemed to fit the bill,

but

apparently not.

From the RPG reference: "If *UNREF is specified, all variables are
generated into the module." I guess "generated into the module" is

subject

to interpretation.

What am I missing?

- Dan
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