IZ53751: ISSUES WITH C++ STYLE COMMENTS AND C COMPILER

November 2009 PTF for XL C/C++ for AIX, V10.1
October 2010 PTF for XL C/C++ for AIX, V10.1
May 2012 PTF for XL C/C++ for AIX, V10.1
January 2013 PTF for XL C/C++ for AIX, V10.1
XL C/C++ for AIX Fix Pack 18 (July 2013 PTF) for 10.1
XL C/C++ for AIX Fix Pack 19 (October 2013 PTF) for 10.1
XL C/C++ for AIX Fix Pack 21 (October 2015 PTF) for 10.1
August 2009 PTF for XL C/C++ for AIX, V10.1
March 2010 PTF for XL C/C++ for AIX, V10.1
April 2010 PTF for XL C/C++ for AIX, V10.1
June 2010 PTF for XL C/C++ for AIX, V10.1
May 2011 PTF for XL C/C++ for AIX, V10.1
October 2011 PTF for XL C/C++ for AIX, V10.1
February 2012 PTF for XL C/C++ for AIX, V10.1
September 2012 PTF for XL C/C++ for AIX, V10.1
XL C/C++ for AIX Fix Pack 20 (October 2014 PTF) for 10.1

APAR status

• Closed as program error.

Error description

• New copyright information was added to some header files in
  V10.1 which included C++ style commenting. When the C compiler
  tries to compile these header files, it produces a compile time
  error message.
  
  ===== COMPILE COMMAND:
  cc_r -c -w test.c
  
  ===== TESTCASE:
  $cat test.c
  #include <demangle.h>
  
  int toto()
  {
  }
  
  
  ===== ACTUAL OUTPUT:
  $
  /.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101//aix/soluti
  on/latest/bin/cc_r -c -w test.c
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 1.1: 1506-046 (S) Syntax
  error.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 2.4: 1506-166 (S)
  Definition of function Licensed requires parentheses.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 10.49: 1506-189 (S)
  Floating-point constant .101.aix is not valid.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 10.59: 1506-260 (S)
  Octal integer constant 081009 is not valid.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 11.10: 1506-260 (S)
  Octal integer constant 08 is not valid.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 11.13: 1506-189 (S)
  Floating-point constant 1.14.1.12 is not valid.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 120.10: 1506-045 (S)
  Undeclared identifier False.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 120.21: 1506-045 (S)
  Undeclared identifier True.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 120.30: 1506-277 (S)
  Syntax error: possible missing ';' or ','?
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 610.5: 1506-166 (S)
  Definition of function Boolean requires parentheses.
  "/.../torolab.ibm.com/fs/projects/vabld/run/vacpp/101/aix/soluti
  on/090510/usr/include/demangle.h", line 610.13: 1506-276 (S)
  Syntax error: possible missing '{'?
  $
  
  ===== EXPECTED OUTPUT:
  Should not produce those error messages.
  

Local fix

• You can use -qcpluscmt to have the C compiler accept C++ style
  comments as a workaround.
  

Problem summary

• Any C (ie. 'cc', not 'c89') user who is
  trying to include our publically available demangle.h
  file will encounter this problem.
  
  A previous fix to the runtime
  replaced the existing C-style copyright with a newer
  copyright, which happened to use C++-style comments.
  

Problem conclusion

• Reverted the comments back to C-style.
  

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:

  LI75061 LI75163

Fix information

• Fixed component name

  XL C++ AIX

• Fixed component ID

  5724U8100

Applicable component levels