IV79439: ERROR WITH STATIC CONST USED AS TEMPLATE PARAMETER FOR CONST REFERENCE

XL C/C++ for AIX Fix Pack 15 (April 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 16 (July 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 17 (November 2016 Update) for 12.1
XL C/C++ for AIX Fix Pack 18 (February 2017 Update) for 12.1
XL C/C++ for AIX Fix Pack 19 (August 2017 Update) for 12.1
XL C/C++ for AIX Fix Pack 20 (March 2018 Update) for 12.1
XL C/C++ for AIX Fix Pack 21 (January 2019 Update) for 12.1

APAR status

• Closed as program error.

Error description

• Instantiation of a specialized template using a 'static const'
  variable is causing the compiler to output an invalid error when
  expecting a 'const' variable.
  
  
     === TEST CASE ==
  
  struct A { static const int val; };
  
  template <const int &T>
  struct B { };
  
  B<A::val> tmp;
  
  
  $ xlC test.cpp
  "test.cpp", line 6.3: 1540-1266 (S) A template argument with
  type "const int" cannot be converted to a template parameter
  with type "const int &".
  $
  

Local fix

• N/A
  

Problem summary

• PROBLEM DESCRIPTION:
  Diagnostic checking of arguments for the non-type template
  parameter of reference type was incorrect.
  
  USERS AFFECTED:
  The problem is specific to non-type template parameter of
  reference type.
  

Problem conclusion

• The problem has been resolved.
  

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:

  IV81794 IV85609

Fix information

• Fixed component name

  XL C/C++ FOR AI

• Fixed component ID

  5725C7200

Applicable component levels