IZ53258: UNEXPECTED COMPILING ERROR

November 2010 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
March 2011 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
July 2011 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
December 2011 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
March 2012 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
January 2010 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
May 2010 PTF for XL C/C++ Enterprise Edition for AIX, V9.0
August 2010 PTF for XL C/C++ Enterprise Edition for AIX, V9.0

APAR status

• Closed as program error.

Error description

• Compiling the following test case:
  
  template <class T> class allocator{};
  class aaa {
  public:
     aaa splice(const aaa & lst = aaa());
  private:
     allocator<double> data;
  };
  
  causes unexpected error:
  
  1540-0253 (S) This use of undefined class "aaa" is not valid.
  

Local fix

• N/A
  

Problem summary

• Users with source code where template
  instants and certain kinds of default arguments are used
  in the same class are affected by this issue.
  
  Compiler issues an error complaining about
  incomplete / undefined types.
  

Problem conclusion

• Changed the order in which the compiler
  processes default arguments and template instantiation.
  

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:

  IZ56458 LI75094 LI75135

Fix information

• Fixed component name

  XLC C++ AIX

• Fixed component ID

  5724S7100

Applicable component levels