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LI78470: INTERNAL COMPILER ERROR WITH NESTED COMMENTS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The compiler produces an internal compiler error for the
    following test case:
    
    ===== COMPILE COMMAND:
    xlC -c ice.cpp
    
    ===== TESTCASE:
    $ cat ice.cpp
    class RandomDev
    {
    public:
      virtual double operator()(void) =0;
      virtual double operator()(double x) =0;
    };
    
    class GenericRandomDevFactory
    {
    public:
      virtual RandomDev* create() const =0;
    };
    
    template <typename DevType>
    class RandomDevFactory: public GenericRandomDevFactory
    {
    public:
      RandomDev* create() const
      {
        return new DevType();
      }
    };
    
    template <typename T>
    class Wrapper: public T
    {
    public:
      /*--------------------------------------------
        /*using RandomDev::operator();*/
      using RandomDev::operator();
      --------------------------------------------*/
      double operator()(void) { return 0.0; }
      double operator()(double x) { return x; }
    };
    
    
    int main()
    {
      RandomDevFactory<Wrapper<RandomDev> > r;
      return 0;
    }
    $
    
    
    ===== ACTUAL OUTPUT:
    Compile time ICE
    
    ===== EXPECTED OUTPUT:
    No compile time ICE
    

Local fix

  • Properly code the comments.
    

Problem summary

  • USERS AFFECTED:
    All users with ill-formed nested comment inside of template
    body that does not get instantiated are affected by this issue.
    
    PROBLEM DESCRIPTION:
    Template body does not get processed until later. This causes
    compiler to crash when it picks up wrongly parsed texts in
    comment block.
    

Problem conclusion

  • Fix has been made so that compiler stops incorporation when the
    template body error occurs.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI78470

  • Reported component name

    XL C/C++ FOR LI

  • Reported component ID

    5725C7300

  • Reported release

    D10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2015-02-25

  • Closed date

    2015-02-25

  • Last modified date

    2015-02-25

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

    LI78295

  • 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



Document information

More support for: XL C/C++ for Linux
Compiler

Software version: 13.1

Reference #: LI78470

Modified date: 25 February 2015