Re: Does Qcmdexc return an error ??

From

http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/rbam6/execp.htm

The command length, passed to the QCMDEXC program on the second parameter, is the maximum length of the passed command string. Should the command string be passed as a quoted string, the command length is exactly the length of the quoted string. Should the command string be passed in a variable, the command length is the length of the CL variable. It is not necessary to reduce the command length to the actual length of the command string in the variable, although it is permissible to do so.




----- Original Message ----- From: "Bob Cozzi" <bob@xxxxxxxxxxxx>
To: "'RPG programming on the AS400 / iSeries'" <rpg400-l@xxxxxxxxxxxx>
Sent: Thursday, May 31, 2007 1:59 PM
Subject: RE: Does Qcmdexc return an error ??

Right, but wrong.
The second parm is supposed to be the length of the command string passed in
parameter 1, not the length of the variable passed in parameter 1.

-Bob


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On
Behalf Of Rory Hewitt
Sent: Thursday, May 31, 2007 12:50 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: Does Qcmdexc return an error ??

Barbara,

Correct me if I'm wrong, but surely you can use:

C Eval MyCmd = 'DSPFD FILE(XYXYXYZ) ' +
C 'OUTPUT(*PRINT)'
C CallP(E) QCMDEXC(MyCmd:%Len(MyCmd))

whether or not you specify Varying. The second parameter to QCMDEXC defines
the length of the first *parameter*, not the length of the *data* in that
parameter - QCMDEXC will ignore any trailing spaces in the first parameter.

I remarked on this a while back, when pointing out that people were adding
totally unnecessary %trim's in their code...

Rory


On 5/31/07, Barbara Morris <bmorris@xxxxxxxxxx> wrote:

...
And if you define MyCmd as VARYING, you can simplify further by
eliminating the %trim:
C Eval MyCmd = 'DSPFD FILE(XYXYXYZ) ' +
C 'OUTPUT(*PRINT)'
C CallP(E) QCMDEXC(MyCmd:%Len(MyCmd))

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