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GC33-0009-4
File No. S360/S370-29
OS
PL/I Checkout and
Optimizing Compilers:
Program Product Language Reference Manual
Program Numbers 5734-PL 1
5734-PL2
5734-LM4
5734-LM5
(These program products are available
as composite package 5734-PL3)
Fifth Edition (October 1976)
This is a major revision of, and obsoletes, GC33-0009-3. This edition
applies to Version 1, Release 3, Modification 0 of the OS PL/I Checkout
Compiler, Program Product 5734-PL2; Version 1, Release 3, Modification 0
of the OS PLII Optimizing Compiler, Program Product 5734-PL1; and all
subsequent versions, releases, or modifications.
Information in this publication is subject to significant change.
Before using the publication, consult the latest IBM System/370
Bibliography, GC20-0001, and the technical newsletters that amend the
bibliography, to learn which edition and technical newsletters are
applicable and current.
Requests for copies of IBM publications should be made to the IBM branch
office that serves you.
Forms for readers' comments are provided at the back of this publication.
If the form has been removed, comments may be address to IBM
Corporation, P.O. Box 50020, Programming Publishing, San Jose,
California 95150, USA. All comments and suggestions become the property
of IBM.
e Copyright International Business Machines Corporation
1970,1971,1972,1973,1976
Preface
This publication is planned for use as a Part II, "Rules and Syntactic
reference book by the PL/I programmer. It Descriptions," provides a quick reference
is not a tutorial publication, but is to specific intormation. It includes less
designed for the reader who already has a information about interrelationships, but
knowledge of the language and who requires i t is organized so that a particular
a source of reference material. question can be answered quickly. Part II
is organized purely from a reference point
The publication is in two parts. Part I of view; it is not intended for sequential
contains discussions of concepts of the reading.
language. Part II contains detailed rules
and syntactic descriptions.
For example, a programmer would read
Although implementation information is chapter 5,