PI96908: MATCHES OPERATOR IS NOT RETURNING EXPECTED RESULTS.

Rational Business Developer Fix Pack 2 (9.1.1.2) for 9.1.1
Rational Business Developer Fix Pack 2 (9.5.1.1) for 9.5

APAR status

• Closed as program error.

Error description

• The problem happens when 2 or more IF statements, containing
  LIKE or MATCH operands are in a row.
  The logic didn't reset a temporary flag, and since these
  statement level temporary variables are redefined storage, the
  2nd IF statement would actually pick up the positive result from
  the 1st IF statement. This is because the logic was not
  resetting the value. By placing another statement between these
  IF statements, it could cause the logic to work, because the
  extra non-IF statement might have also had a temporary variable
  that was causing the redefined storage to get reset, enabling
  the subsequent IF statement to then work.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Incorrect results from LIKE/MATCHES processing can occur     *
  * with embedded IF statements                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * If an IF statement contains a LIKE/MATCHES operand and has   *
  * another IF statement immediately within the first one, then  *
  * it is possible that the results of the subsequent IF         *
  * statements can pick up the result from the previous ones.    *
  * This is because the result flag was not being reset and      *
  * since EGL statement temporary variables redefine each other, *
  * the memory might have been overlaid causing false positive   *
  * results.                                                     *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The memory is now initialized during the IF statement.
  

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 BUS DEV

• Fixed component ID

  5724S5000

Applicable component levels

• R911 PSY

     UP

• R950 PSY

     UP