ca.portal.admin

question about set pointers

Discussion created by ca.portal.admin on Dec 15, 2009
Latest reply on Dec 15, 2009 by ca.portal.admin
If a record is defined as a member of an optional set with next and prior
pointers, but does not belong to the set, should the record's pointers
contain:
a) Zeroes.
b) The db-key of the record itself.
c) Other?

Kay Rozeboom
State of Iowa
Information Technology Enterprise
Department of Administrative Services
Telephone: 515.281.6139 Fax: 515.281.6137
Email: Kay.Rozeboom@Iowa.Gov
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Re: question about set pointers
"I vote 'c'; X'FFFFFFFF' (defined as a null pointer value).

Only the OWNER of an empty set has pointers that point to himself.

Zeroes, to my knowledge, is not a legal set pointer value, but may occur in
certain weird cases of currency values (I dimly recall).

Don Casey
Principal Consultant
Run Right, LLC

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