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HP Services Software Patches - cobolae1024
NOTE:  An OpenVMS saveset or PCSI installation file is stored
       on the Internet in a self-expanding compressed file.
       The name of the compressed file will be kit_name-dcx_vaxexe
       for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha.
       Once the file is copied to your system, it can be expanded
       by typing RUN compressed_file.  The resultant file will
       be the OpenVMS saveset or PCSI installation file which
       can be used to install the ECO.
Copyright (c) Digital Equipment Corporation 1997.  All rights reserved.

PRODUCT:    DEC COBOL V2.4 for OpenVMS Alpha

OP/SYS:     DIGITAL OpenVMS Alpha 



SOURCE:     Digital Equipment Corporation


     ECO Kit Name:  COBOLAE1024 
     ECO Kits Superseded by This ECO Kit:  None 
     ECO Kit Approximate Size:  17,558 Blocks
                    Saveset A -    234 Blocks
                    Saveset B - 12,834 Blocks
                 Cover Letter -     17 Blocks
                RTL Saveset A -  4,473 Blocks

     Kit Applies To:  DEC COBOL Version 2.4 for OpenVMS Alpha
     System/Cluster Reboot Necessary:  No

     Installation Rating:  N/A

     NOTE:  In order to receive the full fixes listed in this kit,
            the following remedial kits also need to be installed:



An ECO kit exists for DEC COBOL V2.4 on OpenVMS Alpha V6.1 through V7.1.

The new functionality, improvements, and bug fixes with V2.4-919 beyond
V2.4-863 SSB include:

  o  CIT3 (COBOL Intermediate Temp) for increased arithmetic compatibility
     with VAX COBOL (see the CIT3 release notes below).

  o  Improved compilation performance and decreased object sizes for
     01 WORKING-STORAGE non-EXTERNAL data declarations which contain one or
     more subordinate OCCURS.  These are now allocated in uninitialized
     storage unless there is a subordinate elementary data item which has a
     VALUE clause or which has a default initialization.
  o  9 bug fixes:

     V2.4-919	[RTL] The RTL kit no longer includes SYSMSG.EXE.
		This corrects some problems with installing COBOLRTL024.
     V2.4-919	[RTL] A problem has been corrected when a [RE]WRITE
    		statement changes the file position that was established with
    		a START statement.  Previously, any locking specifications
    		associated with the START statement were ignored when the
    		START was re-executed to re-establish the correct file
    		position.  Now, all locking information is saved and restored.

     V2.4-919	[RTL] A problem has been corrected when the intrinsic function
		MEDIAN was called with one or more arguments that referred to
		leading sign separate or trailing sign separate decimal data
		items which could result in a wrong answer.

     V2.4-919	The compiler no longer fails when a SCREEN SECTION USING
		clause references a group item which includes a numeric
		subordinate item.
     V2.4-919	The compiler no longer fails /OPT in certain cases
		when CALL USING BY CONTENT is used with a
		character item from the LINKAGE SECTION.
     V2.4-919	A problem has been corrected which involved the use of
		the EXIT PROGRAM statement in a local USE procedure of a
		COBOL main program which was compiled with the qualifier 
		/STANDARD=V3.  The problem was that such an EXIT PROGRAM 
		statement did not cause the execution of the run-unit to 
		terminate immediately, as it does in VAX COBOL.  Instead, 
		the EXIT PROGRAM statement was causing the execution of
		the run-unit to continue by returning immediately to the 
		main-line code of the main program.
     V2.4-919	A compiler problem has been corrected where ADD, SUBTRACT,
		MULTIPLY, and DIVIDE with a floating-point destination
		(COMP-1 or COMP-2) and the ROUNDED option could result in
		a wrong answer.
     V2.4-919   When the source program contains a call to LIB$ESTABLISH or 
                to LIB$REVERT, arithmetic statements with an ON SIZE ERROR 
                clause no longer execute as if the size error condition was 
                always raised.

     V2.4-919	A problem has been corrected when a MULTIPLY statement or
		multiply operation having all comp operands required an
		intermediate result capable of representing 10 decimal digits
		but a smaller intermediate was erroneously chosen. 
		Combinations of input values that produced 10-digit products
		could result in a wrong answer.

DEC COBOL V2.4-919 CIT3 release notes
    The COBOL language allows users to declare data up to 18 decimal
    digits.  Both DEC COBOL and VAX COBOL provide extended arithmetic for
    intermediate computations generally up to 31 decimal digits of
    precision.  When the compilers issue the INTERMED diagnostic under
    /WARNINGS=ALL, VAX COBOL switches to CIT/CIT2 (COBOL Intermediate Temp)
    as the intermediate data type and DEC COBOL switches to double
    precision floating.

    CIT* arithmetic maintains a base containing the most significant 18 decimal 
    digits of an arithmetic operation and an exponent in the range -99..+99 
    representing a power of 10.
    For DEC COBOL V2.4, the default compiler operation is unchanged in that
    double precision floating is selected when the INTERMED diagnostic is
    issued under /WARNINGS=ALL.  For VAX COBOL, the default compiler operation
    is to select CIT/CIT2 when the INTERMED diagnostic is issued under

    To use CIT3, invoke the DEC COBOL compiler using


    You must recompile with this /SWITCH setting and relink any programs
    in which you wish to have CIT3 used.

    Currently, CIT3 is not available with DEC COBOL for DIGITAL UNIX.
    Contact us if you are interested in field testing a version of
    the DEC COBOL RTL which includes CIT3 support for DIGITAL UNIX.

    Following is a brief summary of differences between DEC COBOL and VAX
    COBOL arithmetic with CIT3 enabled in DEC COBOL:

  o Invalid decimal data

    In DEC COBOL, invalid decimal data detection takes place before any
    possible  conversion to CIT3.  CIT3 operations on data items containing
    invalid decimal data will get results compatible with DEC COBOL rather
    than VAX COBOL.

  o Floating-point data items

    In DEC COBOL, expressions involving COMP-1 or COMP-2 data items will be
    converted to G_floating or T_floating before conversion to CIT3.  CIT3
    operations involving D_floating data items, in particular, will get
    results compatible with DEC COBOL rather than VAX COBOL.

  o Undefined results

    If an abnormal condition arises during a CIT3 operation, for example,
    INTEXPOVE (intermediate exponent overflow), and the  program manages to
    continue, and it is not an arithmetic statement with an  ON SIZE ERROR
    clause, then the values which get stored in destination items  will be
    undefined.  DEC COBOL and VAX COBOL are highly likely to get different
    undefined results in such cases.

  o STANDARD dependency

    The VAX COBOL /STANDARD qualifier affects the determination (by
    arithmetic expression analysis) of when the compiler will switch to
    one of the CIT forms.  With /STANDARD=V3, CIT is used when more than
    18 digits of intermediate result are needed. With /STANDARD=85, CIT
    is used when more than 31 digits of intermediate result  are needed.
    The DEC COBOL implementation is compatible with VAX COBOL /STANDARD=85.

  o Special contexts

    The CIT3 implementation has concentrated on the arithmetic statements
    (ADD, SUBTRACT, MULTIPLY, DIVIDE, and COMPUTE).  The compiler does not
    provide  CIT3 support equivalent to VAX COBOL's CIT/CIT2 support for a
    number of contexts:

    	- Intrinsic functions
    	- Expressions in reference-modification components
    	- Expressions in INSPECT, STRING, and UNSTRING statements
	- Exponentiation


The system/cluster does not need to be rebooted after this kit is 
Files on this server are as follows:
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