LI77232: TEMPLATE AND TYPEDEF CAUSING INTERNAL ERROR

XL C/C++ for Blue Gene/Q Fix Pack 12 (May 2015 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 14 (May 2016 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 15 (October 2017 Update) for 12.1
February 2013 Update for XL C/C++ for Blue Gene/Q, V12.1
May 2013 Update for XL C/C++ for Blue Gene/Q, V12.1
XL C/C++ for Blue Gene/Q Fix Pack 5 (August 2013 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 6 (November 2013 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 7 (February 2014 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 8 (May 2014 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 9 (August 2014 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 10 (November 2014 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 11 (February 2015 Update) for 12.1
XL C/C++ for Blue Gene/Q Fix Pack 13 (August 2015 Update) for 12.1

APAR status

• Closed as program error.

Error description

• Instantiating a template using a type that was created with
  typedef is causing the compiler to encounter an internal
  compiler error.
  
  
     ===== TEST CASE =====
  
  template< typename T,
            typename TypeDefType = typename T::typedeftype,
            TypeDefType (T::*Val)() = &T::val >
  struct myStruct
  {
   static TypeDefType run( T & g )
   {
    TypeDefType n = (g.*Val)();
    return n;
   }
  };
  
  class A {};
  
  class B
  {
   public:
    typedef A * typedeftype;
    A * val() { }
  };
  
  void set(...);
  
  void test()
  {
   typedef B C;
   set(&myStruct<C>::run);
  }
  
  
  $ xlC -c test.cpp
  xlC: 1501-230 (S) Internal compiler error; please contact your
  Service Representative. For more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  $
  

Local fix

• N/A
  

Problem summary

• PROBLEM DESCRIPTION:
  Templates instantiated using a local typedef when the local
  typedef is out of scope at the point of instantiation.
  
  USERS AFFECTED:
  The problem is specific to the case where a template is
  implicitly instantiated with a local typedef.
  

Problem conclusion

• The problem has been resolved.
  

Temporary fix

Comments

APAR Information

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

  IV33368

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

Fix information

• Fixed component name

  XL C/C++ FOR BG

• Fixed component ID

  5799AG100

Applicable component levels