X 6.1.6.4.5 Object Reference Data Items
X A data item of USAGE OBJECT REFERENCE can be compared for equality or
X inequality with another data item of USAGE OBJECT REFERENCE or with NULL,
X NULLS, or SELF. (A comparison with SELF is only allowed in a method.)
X Two object-references compare equal only if the data items identify the
X same object.
X ___ Format 4 ___________________________________________________________ X | | X | >>__ _object-reference-identifier-1_ __ ____ __ _____ _______________> | X | |_SELF__________________________| |_IS_| |_NOT_| | X | |_NULL__________________________| | X | |_NULLS_________________________| | | | X | >__ _EQUAL__ ____ _ __ _object-reference-identifier-2_ _____________>< | X | | |_TO_| | |_SELF__________________________| | X | |_=_____________| |_NULL__________________________| | X | |_NULLS_________________________| | | | |________________________________________________________________________|
© Copyright IBM Corp. 1991, 1998
IBM Library Server Copyright 1989, 2005 IBM Corporation. All rights reserved.
Return to library: z/OS | z/OS.e | TPF | z/VSE | z/VM | IBM Hardware | IBM System z Redbooks
Glossary: IBM terminology
Publications: How to order publications
Readers: Download IBM Library Reader | Download IBM Softcopy Reader | Download Adobe® Acrobat® Reader®
Library management: Download IBM Softcopy Librarian
Contacts: Contact z/OS
Adobe, the Adobe logo, Acrobat, the Acrobat logo, and Acrobat Reader are registered trademarks of Adobe Systems incorporated.