RE: passing an RPG variable length field to a CL as fixed length

Well first off, you're not passing TEXTMsg160 or TEXTMsg you're passing a PLIST named SndSmsMsg. How
is that defined?

Secondly, if you expect auto-conversion of parameters on a call. You'd better have a prototype with
CONST or VALUE parameters and be using CALLP.

HTH,

Charles Wilt
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
bounces@xxxxxxxxxxxx] On Behalf Of Mike Cunningham
Sent: Wednesday, February 06, 2008 1:48 PM
To: 'Midrange Systems Technical Discussion'
Subject: passing an RPG variable length field to a CL as fixed length

I have an RPG app calling a CL app. The RPG app as a variable length field
for a message that I need to cut down to a fixed length 160 byte field to
pass to a CL program. If I look at the variable TEXTMsg160 just before the
call I do not see the length part of the variable field but when the CL
program gets &MESSAGE and I use a SNDMSG to see what it contains there are
who hex characters in the front. I can only guess that this is the length
of the variable. Shouldn't the EVAL that moves the string from the
variable length field to the fixed length field also remove the length
part of the variable length field? If not how else can this be done?

The RPG fields are defined as...
D TEXTMsg S 5000 VARYING
D TEXTMsg160 S 160

The code is ...
C EVAL TEXTMsg160 = '(PCTAlerts) ' +
C %trim(TEXTMsg)
C CALL 'UTJSMSMSG' SndSmsMsg

The CL is defined as...
PGM PARM(&PHONE &MESSAGE)
DCL VAR(&PHONE) TYPE(*CHAR) LEN(10)
DCL VAR(&MESSAGE) TYPE(*CHAR) LEN(160)
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