How to return null on a PI -- RPG400-L

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Subject: How to return null on a PI
From: rob@xxxxxxxxx
Date: Wed, 14 Jan 2004 16:56:12 -0500
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     P STRIPEMAIL      B                   export
     D STRIPEMAIL      PI                  like(EmailAddress)
     D  SourceString                512a   const

How do I return *null?  For example, they pass me a bad string in which I 
cannot find what I am looking for.  I'd like to return *null.  Possible? 
If so, how?

Rob Berendt
-- 
"All creatures will make merry... under pain of death."
-Ming the Merciless (Flash Gordon)

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Follow-Ups:

Re: How to return null on a PI , Barbara Morris
Re: How to return null on a PI , Buck

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