LI75796: THE USE OF UNDEFINED CLASS IS NOT VALID MSG

November 2010 Update for XL C/C++ for Linux, V11.1
XL C/C++ for Linux Fix Pack 9 (August 2013 Update) for 11.1
April 2011 Update for XL C/C++ for Linux, V11.1
July 2011 Update for XL C/C++ for Linux, V11.1
October 2011 Update for XL C/C++ for Linux, V11.1
June 2012 Update for XL C/C++ for Linux, V11.1
October 2012 Update for XL C/C++ for Linux, V11.1
XL C/C++ for Linux Fix Pack 8 (June 2013 Update) for 11.1

APAR status

• Closed as program error.

Error description

• While building Eigen C++ template library, the user gets
  the following error message:
  ./xlC -DEIGEN_DONT_ALIGN -DEIGEN_DONT_VECTORIZE -o test test.cpp
  "Eigen-2.0.11/src/Core/util/ForwardDeclarations.h", line 40.36:
  1540-1109 (S) The use of undefined class
  "Eigen::ei_traits<Eigen::Matrix<double,10000,10000,2,10000,10000
  > >" is not valid.
  "Eigen-2.0.11/src/Core/Matrix.h", line 128.12: 1540-0700 (I) The
  previous message was produced while processing "class
  Eigen::MatrixBase<Eigen::Matrix<double,10000,10000,2,10000,10000
  > >".
  "Eigen-2.0.11/src/Core/Matrix.h", line 127.7: 1540-0700 (I) The
  previous message was produced while processing "class
  Eigen::Matrix<double,10000,10000,2,10000,10000>".
  "test.cpp", line 6.5: 1540-0700 (I) The previous message was
  produced while processing "main()".
  

Local fix

• N/A
  

Problem summary

• xlC reports the use of undefined class (a template class) is
  not valid
  

Problem conclusion

• Use the template's point of instantiation as the reference
  point if we are in template context.
  

Temporary fix

Comments

APAR Information

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

  IZ73245

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

Fix information

• Fixed component name

  XL C/C++ FOR LI

• Fixed component ID

  5724X1400

Applicable component levels

• RB10 PSN IZ73245

     UP06/09/13