× 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.


  • Subject: Re: Variable length MODS
  • From: Jon.Paris@xxxxxx
  • Date: Sat, 14 Apr 2001 19:24:02 +0200


 >> What happens if I try to access Labels(4) in my  program?  Will I get
an array bounds error?  Will I get weird  data?

Maybe, maybe not.  If you have previously used occurrence (and you are
still using the same memory allocation) that data may still be there.  Or
you may get garbage or you may get a machine check.  The two things that
are certain are that you will not get the data you want and RPG will not
issue a bounds error - only hard crashes.



If you use dynamically allocated memory you _must_ assume all
responsibility for bounds checking yourself.



I'm still hopeful that Hans and Barbara will at least let us set the actual
top of any array/MODS in the future.  It would be so useful, not just in
the case of dynamic memory but also when doing SORTA, LOOKUP, etc. to have
the compiler constrain the operation to only the _active_ members.






+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---

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 1997-2024 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.