LI77620: INCORRECT UNDEFINED CLASS ERROR MESSAGE WITH TEMPLATE

XL C/C++ for Linux Fix Pack 8 (October 2015 Update) for 12.1
XL C/C++ for Linux Fix Pack 4 (October 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 5 (December 2013 Update) for 12.1
XL C/C++ for Linux Fix Pack 6 (February 2014 Update) for 12.1
XL C/C++ for Linux Fix Pack 7 (May 2014 Update) for 12.1

APAR status

• Closed as program error.

Error description

• A test case accepted by previous versions of compilers causes
  undefined class error messages during compilation with V12.1.
  
  $xlC -c test_prep_12.cpp
  "test_prep_12.cpp", line 12009.21: 1540-1109 (S) The use of
  undefined class "<class name>" is not valid.
  "test_prep_12.cpp", line 12101.37: 1540-0700 (I) The previous
  message was produced while processing "struct <class name>".
  

Local fix

• N/A
  

Problem summary

• PROBLEM DESCRIPTION: Invalid point of instantiation leads to
  incomplete class error
  
  USERS AFFECTED: The problem involves a specific set of calls
  and is not common
  

Problem conclusion

• the problem has been resolved
  Apply applicable service.
  

Temporary fix

Comments

APAR Information

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

  IV36724

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

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5725C7300

Applicable component levels

• RC10 PSN IV36724

     UP06/09/13