PM81853: PREPROCESSOR ERROR WITH VARIADIC MACRO

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The C preprocessor is throwing an invalid error when processing
  a variadic macro using the ## concatenate operator.  The
  invalid syntax error that is reported only appears when a
  separate, valid macro error is detected by the compiler.
  
  
       ===== TEST CASE =====
  
  #include <stdio.h>
  
  #define debug2(fmt, p1, ...) printf(fmt, p1, ## __VA_ARGS__)
  int main(int argc, char *argv)
  {
  
   debug2("%s\n", "Test" , "Test2");  // <<==== INVALID ERROR HERE
   debug2("%s\n",);
  
  }
  
  
  > xlc t.c
  ERROR CCN3046 ./t.c:7     Syntax error.
  ERROR CCN3098 ./t.c:8     Missing argument(s).
  CCN0793(I) Compilation failed for file ./t.c.  Object file not
  created.
  >
  

Local fix

• Correct the valid macro error.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of XL C/C++                            *
  ****************************************************************
  * PROBLEM DESCRIPTION: z/OS console tracker DASDM OBTAIN at    *
  *                      /bin/c89+0x43E84                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• Apply provided service.
  

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:

  UK92865 PM87234

Modules/Macros

•    CCNECICS CCNECWI  CCNEDSCT CCNEDWRT CCNED1C0
  CCNEFILT CCNEHIFC CCNEMDEP CCNEOPTP CCNEP    CCNEPP   CCNETBY
  CCNMSGE  CCNMSGT
  

Fix information

• Fixed component name

  C/C++ FOR MVS

• Fixed component ID

  56551210A

Applicable component levels

• R770 PSY UK92865

     UP13/04/13 P F304

Fix is available

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