PI57129: AUTO CONSTEXPR STATEMENT CAUSING INTERNAL COMPILER ERROR

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Simple usage of the constexpr and auto type deduction C++11
  features on the same variable is encountering an internal
  compiler error.
  
     === TESTCASE ===
  
  int main()
  {
    static constexpr auto i = 5;
  }
  
  > xlc -Wc,"LANGLVL(CONSTEXPR)" -Wc,"LANGLVL(AUTOTYPEDEDUCTION)"
    test.cpp
  
  CCN5505(S) The build failed and there are no messages.
  CCN5527(I) The build failure may be because of an Internal
  Compiler Error or because a tool failed to generate a message.
  For more information visit:
  http://www.ibm.com/support/docview.wss?uid=swg21110810
  CCN0793(I) Compilation failed for file ./test.cpp.  Object file
  not created.
  
  >
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: z/OS XLC users of C++2011 features           *
  *                 constexpr and auto (when these features are  *
  *                 used together).                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: constexpr and auto used on the same     *
  *                      declaration will cause a circular       *
  *                      dependency leading to an internal       *
  *                      compiler error.                         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• Apply provided service.
  

Temporary fix

Comments

APAR Information

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

  PI55097

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

Modules/Macros

•    CCNEPP
  

Fix information

• Fixed component name

  C/C++ FOR MVS

• Fixed component ID

  56551210A

Applicable component levels

• R791 PSY UI35376

     UP16/03/10 P F603

Fix is available

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