× 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

RE: add to *Null pointer does not throw an exception.

Are you saying that one job can use a pointer that was created/manipulated
by another job?

Now THAT sounds like a bug.   You could use that for all sorts of security
exploits!

On Wed, 16 Oct 2002, Steve Richter wrote:
>
> Also, the offset of a pointer can be used as data.  Subtracting one pointer
> from another returns a decimal difference in RPG. Consider that a pointer
> can be stored in a permanent user space. One job could add to the pointer
> and another job could use the resulting pointer.  So the add to the pointer
> is not a superfluous operation.
>

As an Amazon Associate we earn from qualifying purchases.

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

This mailing list archive is Copyright 1997-2024 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.