phantom in routine

ascen · Post by **ascen** » Mon May 22, 2006 3:13 pm

ArndW wrote:Ascen - say again? The INDEX function will return a 0 if the 1-char len value of the variable "cp" is not found in the string otherwise it will return a value. An condition in DataStage BASIC evaluates to 0 or '' as being the equivalent of false and anything else to be TRUE.

But I think it will still return some phantom error when I will pass undefined first arg to index function, isn't it?

ray.wurlod · Post by **ray.wurlod** » Mon May 22, 2006 4:33 pm

Then don't! Or test for an argument in an unassigned state and do something about it.

ascen · Post by **ascen** » Tue May 23, 2006 1:43 am

Thanks a lot. I will start using ASSIGNED and UNASSIGNED functions regurarly.

Best regards,
Piotrek