PI56879: RATIONAL DEVELOPER FOR SYSTEM Z (RDZ) : UNEXPECTED "AMBIGUOUS REFERENCE" MESSAGE DISPLAYED IN PL/I EDITOR WITH "DUMMY" WORD

Rational Developer for System z Fix Pack 1 (9.1.1.4) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.5) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.6) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.7) for 9.1.1.
Rational Developer for System z Fix Pack 1 (9.1.1.8) for 9.1.1
Rational Developer for System z Fix Pack 9 (9.1.1.9) for 9.1.1

APAR status

• Closed as program error.

Error description

• Rational Developer for System z - RDz - v9.1.1.2
  
  Description :
  Several uses of "DUMMY" in PL/I sources displays an "Ambiguous
  reference" message.
  Here are the steps to reproduce :
  - Create a PL/I program with this structure :
  PLIPGM: PROC OPTIONS(MAIN,NOEXECOPS) REORDER;
  
  DCL 1 AAAAAA,
  3 AAAAAA UNAL       ,
     5 PARAMETER1      ,
       7 VAR1A                      CHAR (8),
       7 VAR2A                      CHAR (6),
       7 VAR3A                      CHAR (4),
  3 DUMMY CHAR(0);
  
  DCL 1 BBBBBB UNAL,
  3 BBBBBB ,
     5 VAR1B                        CHAR (2),
  3 DUMMY CHAR(0);
  
  DUMMY: PROC;
  END DUMMY;
  
  END PLIPGM;
  
  - On the END DUMMY line, the message "Ambiguous reference" is
  displayed.
  

Local fix

• The following fixes are suggested with the displayed message :
  "Change to AAAAAA.DUMMY" and "Change to BBBBBB.DUMMY".
  

Problem summary

• The RDz PL/I Parser does not correctly identify DUMMY variables
  as non-assignable symbols.
  

Problem conclusion

• Modified PL/I Parser code to treat DUMMY variables correctly.
  
  The problem listed in this APAR has been resolved with
  IBM Rational Developer for System z V9.1.1.4 Fix Pack which
  is available from the Recommended Fixes support download page:
  http://www-1.ibm.com/support/docview.wss?rs=2294&uid=swg27006335
  

Temporary fix

Comments

APAR Information

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

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

Fix information

• Fixed component name

  RATL DEV FOR SY

• Fixed component ID

  5724T0700

Applicable component levels

• R911 PSY

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