IV81793: TEMPLATE ERROR WITH OPERATOR-> OVERLOAD

XL C/C++ for AIX Fix Pack 6 (February 2016 PTF) for 13.1
XL C/C++ for AIX Fix Pack 7 (May 2016 PTF) for 13.1
XL C/C++ for AIX Fix Pack 8 (August 2016 PTF) for 13.1
XL C/C++ for AIX Fix Pack 9 (June 2017 PTF) for 13.1
XL C/C++ for AIX Fix Pack 10 (February 2018 PTF) for 13.1
XL C/C++ for AIX Fix Pack 11 (November 2018 PTF) for 13.1

APAR status

• Closed as program error.

Error description

• An invalid unexpected template error is output when processing
  template code that uses overloaded operator->.
  
  
  
     === TEST CASE ===
  
  struct d1;
  
  struct Type
  {
      typedef d1 it;
      template<typename T> const T test() const;
  };
  
  struct d2
  {
      typedef struct Type Ref;
      typedef struct Type * Point;
      struct proxy   {
        explicit proxy(Ref const & x) : m_ref(x) {}
        Ref* operator->() ;
        operator Ref*() ;
        Ref m_ref;
      };
      typedef proxy result;
      static result apply(Ref const & x)  {
          return result(x);
      }
  };
  
  struct d1
  {
      typedef d2 d2_;
      typedef d2_::result pointer;
      pointer operator->() const;
  };
  
  int main(int argc, char **argv)
  {
      return Type::it()->test<int>();
  }
  
  
  $ xlC test.cpp
  "test.cpp", line 34.32: 1540-0157 (S) The text ">" is
  unexpected.  It may be that this token was intended as a
  template argument list terminator but the name is not known to
  be a template.
  $
  

Local fix

Problem summary

• PROBLEM DESCRIPTION:
  Name lookup only found one operator-> but the return type also
  has its own overloaded operator-> .
  
  USERS AFFECTED:
  The problem is specific to overloaded operator-> , where
  lhs->rhs and lhs has non-pointer type and rhs is a template id.
  

Problem conclusion

• The problem has been fixed.
  

Temporary fix

Comments

APAR Information

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

  IV78684

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

Fix information

• Fixed component name

  XL C/C++ FOR AI

• Fixed component ID

  5725C7200

Applicable component levels

• RD10 PSY

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