LI77180: NAME LOOKUP ERROR WITH -QLANGLVL=VARIADICTEMPLATES

February 2013 Update for XL C/C++ for Blue Gene/Q, V12.1

APAR status

• Closed as program error.

Error description

• A test case compiles clean with the original compiler options,
  but gives name lookup error using the variadic templates
  feature with -qlanglvl=variadictemplates:
  
  "test.cc", line 164.25: 1540-0274 (S) The name lookup for
  "copy" did not find a declaration.
  "test.cc", line 164.25: 1540-1226 (I) Declarations for
  non-dependent names are resolved in the template definition.
  "test.cc", line 164.25: 1540-1227 (I) "copy" does not depend on
  a template argument.
  ....
  

Local fix

• Do not use -qlanglvl=variadictemplates
  

Problem summary

• PROBLEM DESCRIPTION: Invalid name lookup error found in
  template definition
  
  USERS AFFECTED: The problem may be exposed when using
  -qtmplparse=error or -qlanglvl=variadictemplates allowing the
  compiler to type check non-depenent expressions in a template
  definition.   The compiler was missing the fact that a name was
  dependent and analyzing it in the template definition causing
  the error.
  

Problem conclusion

• The problem is fixed. Apply recommended service.
  

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:

  IV34557 LI77350

Fix information

• Fixed component name

  XL C/C++ FOR BG

• Fixed component ID

  5799AG100

Applicable component levels

• RC10 PSY

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