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GC28-6431-0

IBM as Full American
National Standard COBOL
Compiler and Library,
Program Product Version 4, Planning Guide
Program Numbers:
5734-CB2 (Compiler & Library)
5734-LM2 (Library only)

The IBM as Full American National Standard COBOL
Compiler and Library, Version 4, is a Program Product
that accepts as input source programs written in as Full
American National Standard COBOL, Version 4. Each of
the new features of the Version 4 Compiler is described
in a separate chapter of this publication. The features are:
Symbolic Debugging
Optimized Object Code
Teleprocessing
COBOL Library Management Facility
Dynamic Subprogram Linkage
Syntax~Checking Compilation
String Manipula ticm
System considerations and a description of the COBOL
Object-time Subroutine Library are also included.
The Version 4 Compiler also contains all of the features
of previous versions and is compatible with the highest
level of American National Standard COBOL, X3.23-1968,
as approved by ANSI; American National Standard
COBOL is compatible with, and identical to, the proposed
international standard of the language, Draft ISO
Recommendation No. 1989 -- Information Processing --
Programming Language COBOL. The new COBOL
language elements of the Version 4 Compiler are IBM
extensions to those standards.
This publication is a planning aid for system planners
and analysts, and for COBOL programmers. It is intended
for use prior to the availability of the Version 4 Compiler,
and will be supplemented with reference documentation
when the Version 4 Compiler becomes available.
First Edition (April 1972)
This edition corresponds to Version 4 of the IBM OS Full American
National Standard COBOL Compiler.
Changes are periodically made to the specifications herein; any such
changes will be reported in subsequent revisions or Technical
Newsletters.
Requests for copies of IBM publications should be made to your IBM
representative or to the IBM branch office serving your locality.
A form for readers' comments is provided at the back of this
publication. If the form has been removed, comments may be addressed to
IBM Corporation, Programming publications, 1271 Avenue of the Americas,
New York 10020. Comments become the property of IBM.
~ Copyright International Business Machines corporation 1972
The IBM OS Full American National standard This publication is a planning aid for
COBOL Compiler and Library, Version 4, is a system planners and analysts, and for COBOL
Program Product that accepts as input programmers. It is intended for use prior
source programs written in IBM OS Full to the availability of the Version 4
American National Standard COBOL, Version Compiler, and will be supplemented with
4. The Version 4 Object-time Subroutine reference documentation when the version 4
Library contains COBOL subroutines which, Compiler becomes available.
when required, are combined by the Linkage
Editor with the object modules produced by
the Version 4 Compiler. Also part of the A knowledge of the basic functions
subroutine library is a set of transient provided by the Operating System is
routines that can be dynamically fetched necessary for the understanding of this
during object program execution. The publication. Such information can be found
Version 4 Object-time Subroutine Library is in the following pUblication:
also being made available as a separate
Program Product.
IBM System/360 Operating System:
This publication describes the new Introduction, Order No. GC28-6534
features of the Version 4 compiler and
Library, which are:
The COBOL programmer who uses this
Symbolic Debugging publication must be familiar with the
optimized object Code capabilities of the operating system
Teleprocessing implementation of IBM Full American
string Manipulation National Standard COBOL. This
COBOL Library Management Facility implementation is described in the
Dynamic Subprogram Linkage publication:
Syntax-Checking Compilation
The Version 4 Compiler also contains all IBM OS Full American National Standard
of the features of previous versions of the