PH49828: 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 6.3 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 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 IGYCLIBR IGYCLSTR IGYCLVL0 IGYCLVL1 IGYCLVL2
  IGYCLVL3 IGYCLVL8 IGYCMALL IGYCOPI  IGYCOPT  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 IGYMSGE  IGYMSGK
  IGYMSGT  IGYQCBE  IGYQSPLT IGYZQEN6 IGYZQENU IGYZQJP6 IGYZQJPN
  

Fix information

• Fixed component name

  ENT COBOL FOR Z

• Fixed component ID

  5655EC600

Applicable component levels

• R630 PSY UI82565

     UP22/10/01 P F209

• R631 PSY UI82566

     UP22/10/01 P F209

• R632 PSY UI82567

     UP22/10/01 P F209

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.