PI92749: CODE GENERATION ERROR WITH CYGWIN COMPILER HAVING A PROBLEM WITHNESTED CONCATENATION (USING ## OPERATOR)

IBM Rational Rhapsody 8.3.1

APAR status

• Closed as program error.

Error description

• Getting compilation error such as :
  1. Share/LangC/mxf/RiCPortMacros.h:41:60: error: pasting ")" and
  "RIC_CONCAT_3" does not give a valid preprocessing token
  2. Share/LangC/mxf/RiCPortMacros.h:32:48: error: pasting ")" and
  "port" does not give a valid preprocessing token.
  
  Remove the IDE settings within the configuration in the attached
  model and you will get the same errors.
  The problem is with Cygwin, not in Visual Studio
  
  The problem disappeared after modifying RIC_CONCAT_3 and
  RIC_CONCAT_6 macros as the following:
  #define RIC_CONCAT_3(A, B ,C) A##B##C
  #define RIC_CONCAT_6(A, B, C, D, E, F) A##B##C##D##E##F
  
  Probably, previous version of VS compiler didn't allow more then
  one ## operator in macro.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Rhapsody                                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Cygwin compiler doesn't accept multiple macro concatenation  *
  * while MISRA rules don't allow more then one ## operator in   *
  * macro definition.                                            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• RIC_CONCAT_3 and RIC_CONCAT_6 macro definitions are modified if
  CYGWIN is used. User should pay attention these macros are not
  MISRA compliant.
  

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

  TLOGIC RHAPSODY

• Fixed component ID

  5724V74RP

Applicable component levels

• R821 PSY

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