IV54663: COMPILE TIME ERROR WITH -QWARN64

XL C/C++ for AIX Fix Pack 21 (October 2015 PTF) for 10.1
XL C/C++ for AIX Fix Pack 20 (October 2014 PTF) for 10.1

APAR status

• Closed as program error.

Error description

• When compiling with -qwarn64, the compiler issues an error
  message. -qwarn64 should not issue an error messsage. It should
  issue a warning message instead.
  
  ===== COMPILE COMMAND:
  xlC_r -qnolm -qeh=v6 -q64 -qwarn64 -qrtti=all -g
  -qcheck=nobounds:div:null -I. -c -o Object.o Object.cpp
  
  ===== TESTCASE:
  $ cat Object.cpp
  
  #include <iostream>
  #include "Object.h"
  
  
  using namespace std;
  
  
  template<>
  bool CORBA::is_nil<>(char *ptr)
  {
    if (ptr == 0){
       cout <<" Pointer is  null "<< endl;
       return true;
     }
  
  
    cout <<" pointer is NOT null "<< endl;
    return false;
  }
  $
  
  $ cat Object.h
  
  #include <iostream>
  
  
  namespace CORBA
  {
    template<class T>
    bool is_nil(T *t);
  
  
    template<> bool is_nil <> (char *p);
  }
  $
  
  ===== ACTUAL OUTPUT:
  
  $ xlC_r -qnolm -qeh=v6 -q64 -qwarn64 -qrtti=all -g
  -qcheck=nobounds:div:null -I. -c -o Object.o Object.cpp
  "Object.cpp", line 7.6: 1540-1621 (S) The explicit
  specialization "is_nil<char>" must be declared in the nearest
  enclosing namespace scope of the template.
  $
  ===== EXPECTED OUTPUT:
  Should not be an error message.
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users using -qwarn64 option are affected by this issue.
  
  PROBLEM DESCRIPTION:
  Compiler generates error message when -qwarn64 is used; instead
  of a warning message.
  

Problem conclusion

• The compiler has been fixed so that a warning message is
  emitted instead of error message when using -qwarn64 option for
  the associated test case.
  

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:

  IV54673 LI77821 IV56779

Fix information

• Fixed component name

  XL C++ AIX

• Fixed component ID

  5724U8100

Applicable component levels