PH48674: THE ON SIZE ERROR CLAUSE MAY NOT BE EXECUTED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The optimizer was incorrectly deciding that the addition of two
  18-digit BINARY data items could be done as a binary addition
  instead of a packed-decimal addition. This is incorrect as the
  result could be 19 digits, and some 19-digit values cannot be
  represented in a 64-bit binary data item. Because of this
  decision, the code that was generated would add the two 18-digit
   data items together and truncate after the ON SIZE ERROR check.
   Prior behaviour (that of COBOL 4, and without doing this
  optimization) would be to truncate the data items before they
  were added together.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of Enterprise COBOL 6.4 compiling      *
  *                 programs at ARCH(11) or lower with           *
  *                 TRUNC(STD|OPT) that add two 18-digit BINARY  *
  *                 data items together with an ON SIZE ERROR    *
  *                 clause where the result is 19 digits.        *
  ****************************************************************
  * PROBLEM DESCRIPTION: The ON SIZE ERROR clause may not be     *
  *                      executed.                               *
  ****************************************************************
  * RECOMMENDATION: Apply the provided PTF                       *
  ****************************************************************
  The optimizer was incorrectly deciding that the addition of two
  18-digit BINARY data items could be done as a binary addition
  instead of a packed-decimal addition. This is incorrect as the
  result could be 19 digits, and some 19-digit values cannot be
  represented in a 64-bit binary data item. Because of this
  decision, the code that was generated would add the two
  18-digit data items together and truncate after the ON
  SIZE ERROR check. Prior behaviour (that of COBOL 4, and without
  doing this optimization) would be to truncate the data items
  before they were added together.
  

Problem conclusion

• The compiler was fixed to avoid the above optimization,
  truncating the data items to 18 digits before they were added
  together, producing the same result as COBOL 4.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PH47833

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• IGY8RWTU IGYADXIT IGYCASMB IGYCCBE  IGYCCCRT IGYCCICS IGYCCSRV
  IGYCDGEN IGYCDIAG IGYCDMAP IGYCEN$0 IGYCEN$1 IGYCEN$2 IGYCEN$3
  IGYCEN$4 IGYCEN$5 IGYCEN$8 IGYCEN$D IGYCEN$R IGYCFGEN IGYCFREE
  IGYCINIT IGYCJA$0 IGYCJA$1 IGYCJA$2 IGYCJA$3 IGYCJA$4 IGYCJA$5
  IGYCJA$8 IGYCJA$D IGYCJA$R IGYCJBLD IGYCJBLS IGYCJDM1 IGYCJDM2
  IGYCJDM3 IGYCJDM4 IGYCJDM5 IGYCJDM6 IGYCJDMB IGYCJDMR IGYCJGEN
  IGYCLIBR IGYCLSTR IGYCLVL0 IGYCLVL1 IGYCLVL2 IGYCLVL3 IGYCLVL8
  IGYCMALL IGYCOPI  IGYCOSCN IGYCPGEN IGYCRCTL IGYCRDPR IGYCRDSC
  IGYCREAL IGYCRWT  IGYCSCAN IGYCSIMD IGYCUE$0 IGYCUE$1 IGYCUE$2
  IGYCUE$3 IGYCUE$4 IGYCUE$5 IGYCUE$8 IGYCUE$D IGYCUE$R IGYCXREF
  IGYDRV   IGYEQCWI IGYISMKD IGYMSGE  IGYMSGK  IGYMSGT  IGYMSGXT
  IGYQC    IGYQCB   IGYQCBE  IGYQCBG  IGYQSPLT IGYWACPT IGYWALOC
  IGYWAPLY IGYWC    IGYWCL   IGYWCLG  IGYWDDEF IGYWDOPT IGYWIVP1
  IGYWIVP2 IGYWRECV IGYWRWD  IGYWSMPE IGYWUOPT IGYWZFS  IGYZQEN6
  IGYZQENU IGYZQJP6 IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R640 PSY UP

     A

• R641 PSY UP

     A

• R642 PSY UI82932

     UP22/10/28 P F210

• R64H PSY UP

     A

Fix is available

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