IY70447: INAPPROPRIATE WARNING WITH -QWARN64 AND INT_MAX

August 2005 XL C/C++ Enterprise Edition V7.0 for AIX PTF
June 2008 XL C/C++ Enterprise Edition V7.0 for AIX PTF
April 2006 XL C/C++ Enterprise Edition V7.0 for AIX PTF
July 2007 XL C/C++ Enterprise Edition V7.0 for AIX PTF
May 2005 XL C/C++ Enterprise Edition V7.0 for AIX PTF
February 2007 XL C/C++ Enterprise Edition V7.0 for AIX PTF
November 2005 XL C/C++ Enterprise Edition V7.0 for AIX PTF
October 2006 XL C/C++ Enterprise Edition V7.0 for AIX PTF
January 2010 XL C/C++ Enterprise Edition V7.0 for AIX PTF
January 2006 XL C/C++ Enterprise Edition V7.0 for AIX PTF
August 2006 XL C/C++ Enterprise Edition V7.0 for AIX PTF
December 2007 XL C/C++ Enterprise Edition V7.0 for AIX PTF
October 2008 XL C/C++ Enterprise Edition V7.0 for AIX PTF

APAR status

• Closed as program error.

Error description

• *** This APAR was originally reported on, and fixed on, another
  compiler platform. The following text is taken from the APAR for
  the original product and platform. ***
  .
  The following test case, when compiled with -qwarn64, produces
  an inappropriate error message.
  
  Test case:
  ----
  #include <limits.h>
  #include <stdio.h>
  
  long bar (int i) { return
  static_cast<long>(static_cast<unsigned>(i)); }
  
  int main ()
  {
      printf ("%i == %li\n", INT_MAX, bar (INT_MAX));
      printf ("%i == %li\n", INT_MIN, bar (INT_MIN));
  }
  ----
  
  Actual output:
  ----
  $ xlC -qwarn64 t.cpp
  "t.cpp", line 5.19: 1540-5329 (I) 64-bit portability : possible
  difference in results.  In 32-bit mode values greater than
  INT_MAX would be truncated, but not in 64-bit mode.
  $
  ----
  
  Expected output:
  ----
  $ xlC -qwarn64 t.cpp
  $
  ----
  

Local fix

Problem summary

• This issue was resolved.
  

Problem conclusion

• A defect in the code was fixed.
  

Temporary fix

Comments

APAR Information

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

  IY67798

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

Fix information

• Fixed component name

  XL C++ FOR AIX

• Fixed component ID

  5724I1100

Applicable component levels

• R700 PSN U812862

     UP07/08/02 I 1000