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  3. September 2003

Re: Finding the length of a passed parameter

At 19:33 9/17/2003, Barbara Morris wrote: 
On Wednesday 17 September 2003 20:16, Barbara Morris wrote:
Narayanan R Pillai wrote:
> On Wednesday 17 September 2003 18:17, York, Albert wrote:
> > Is there an API which will give me the actual length of a parameter
> > that is passed to my program?
>
> If you are using ILE, CEEDOD
> But CEEDOD only works with bound calls, not program calls.

If it's character data (maybe even if it's not) VARLEN parameter variables are extremely useful in that they automatically provide the length of the data. If the parameter number is less than %Parms and the pointer is not null, you can just use %Len (RPG) to see how long it is. Very easy! The IBM API technique works well too: Pass a structure containing the number of bytes provided (which is essentially what a VARLEN field is.)


Pete Hall
pbhall@xxxxxxxxxxxxx
http://www.pbhall.us/


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