× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. RPG400-L
  3. October 2002

testing a pointer for *Null

Tonight is pointer arithmetic night!

The following does compile:

d pBase           s               *
d pData           s               *
c                   eval      pBase = *null
c                   if        pBase = *Null
c                   else
c                   eval      pData = pBase + 32
c                   end

but this does not:
 c                   if        not pBase = *Null
 c                   eval      pData = pBase + 32
 c                   end
*RNF7421 30      2 Operands are not compatible with the type of operator.

Why not?

Steve Richter

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2025 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.