RE: CL calling RPG with Varying Parm

[Kurt Anderson <kurt.anderson@xxxxxxxxxxxxxx>]

Thanks, Paul, that's what I needed.

-Kurt

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Morgan, Paul
Sent: Thursday, June 30, 2011 2:38 PM
To: Midrange Systems Technical Discussion
Subject: RE: CL calling RPG with Varying Parm

Kurt,

You could define the variable as a 9 ((length + 1)/2 rounded up) byte character string.  Use a hexadecimal constant to assign the number to the character string.  You must include leading zeros and a trailing sign nibble (F for positive, D for negative):

DCL VAR(&LONGNUM) TYPE(*CHAR) LEN(9) VALUE(X'00000001234567890F')  

for the number 1,234,567,890 in packed 16.0 format.

I'm on V5R4 so I can't confirm for 7.1 but the digits limit still appears to be 15 digits however the decimal limit has always been 9 and not 5:

DCL VAR(&NUMLIMIT) TYPE(*DEC) LEN(15 9)

15.5 packed is the numeric format for a raw numeric passed as a parameter on a CALL command. 

Thanks,
Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Kurt Anderson
Sent: Thursday, June 30, 2011 2:53 PM
To: Midrange Systems Technical Discussion
Subject: RE: CL calling RPG with Varying Parm

Do you have any tips for me trying to pass a 16 (16,0) digit numeric value from CL to RPG?  Ie. Any way to get around the 15,5 limitation?

Thanks,
Kurt

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Morgan, Paul
Sent: Thursday, June 30, 2011 11:21 AM
To: Midrange Systems Technical Discussion
Subject: RE: CL calling RPG with Varying Parm

Kurt,

The varying length is a two byte integer value at the start of &PARM1.

To match the variable in the RPG program

DCL VAR(&PARM1) TYPE(*CHAR) LEN(52)

CHGVAR VAR(%SST(&PARM1 1 2))  VALUE(X'0032') CHGVAR VAR(%SST(&PARM1 3 50)) VALUE('508656904670')

CALL PGM(RPGPRogram) PARM(&PARM1)

Paul Morgan

Principal Programmer Analyst
IT Supply Chain/Replenishment


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Kurt Anderson
Sent: Thursday, June 30, 2011 11:56 AM
To: 'Midrange Systems Technical Discussion' (midrange-l@xxxxxxxxxxxx)
Subject: CL calling RPG with Varying Parm

I'm trying to unit test a program that has a varying parameter and I can't seem to get the call to work successfully.  I keep getting a "Length of varying length variable is out of range" error as the RPG program moves the entry parameter into another field.

RPG Prototype:
D RPGProgram      PR
D  parm1                        50a   Const Varying

Technically, parm1 is defined like a file's field that has VARLEN specified.  I believe RPG treats that as Varying when you do a LIKE.

CL call:
             DCL        VAR(&PARM1)        TYPE(*CHAR) LEN(53)

/* first two bytes of value is the length */
             CHGVAR     VAR(&PARM1) VALUE('508656904670')

             /*  to prevent truncating trailing of blanks */
             CHGVAR     VAR(%SST(&PARM1 53 1)) VALUE('X')

             CALL       PGM(RPGProgram) PARM(&PARM1)

I've tried this a variety of ways.  With LEN(50), w/o the trailing X, w/o specifying the length in &PARM1.

I'm on 7.1.

Thanks for the help,

Kurt Anderson
Sr. Programmer/Analyst
CustomCall Data Systems
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