Re: Unreferenced variables not showing up in debug

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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