Re: Getting a MCH3601 Pointer not set

The "stack" only comes into play in this manner when calling ILEditor procedures Kevin. Program parms don't work that way. They are "stored" by the caller and retrieved via an API call in the called program. I would have expected it to blow up earlier - not on the IF but during parameter resolution.

Maybe Mark or Bruce know of circumstances when that would not hold true.

On Jun 9, 2020, at 6:33 PM, Kevin Wright <kevin.wright@xxxxxxxxxxxx> wrote:

So for 20 years, when this call has been executed, in the position on the
stack of the 5th parameter there has been something that looks like a
pointer that has had some unknown effect on the called program. This time
there was not. This is a bug that has been occurring relatively silently
for 20 years but now has caused the MCH3601.

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Thomas
Burrows
Sent: Wednesday, 10 June 2020 8:28 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: Getting a MCH3601 Pointer not set

This code has been around over 20 years and is suppose to the work.
The CL program is only passing four parms to the rpg program that has a
plist of FIVE PARMS.

Could this be the problem? Did not write any of this.

On Tue, Jun 9, 2020 at 5:24 PM Thomas Burrows
<thomas.burrows.1957@xxxxxxxxx>
wrote:

Actually five and WRUNC is the last parm

On Tue, Jun 9, 2020 at 5:23 PM Bruce Vining <bruce.vining@xxxxxxxxx>
wrote:

Are you passing three parameters when calling the program?

On Tue, Jun 9, 2020 at 6:18 PM Thomas Burrows <
thomas.burrows.1957@xxxxxxxxx>
wrote:

I have the following:

D-specs
D wrunc s 1

Getting this in the definitions per compiled listing

WRUNC A(1) 009800D 011400 0390
BASED(_QRNL_PRM+)

*entry plist
parm ONE
parm TWO
parm wrunc

Now in the C-specs
if wrunc = cspace

When I hit this line inside debug or not in debug mode I get a

Pointer not set for location referenced.
Function check. MCH3601 unmonitored by PROGRAM_NAME at statement

123456.

In my AS400 COBOL days a MCH3601 came from not having the file that

had

variable in the record OPENED.

Not having a good day. Lots of internet ups and downs.

Other issues.
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