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IV19832: TEMPLATE PARAMETER CANNOT BE INITIALIZED

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The compiler generates an incorrect template message for the
    following test case:
    
    =====Compile Command:
    xlC -c b.cc
    
    =====Testcase:
    $cat b.cc
    template <int, int> struct Tensor {};
    template <int dim> class Tensor<0,dim> {};
    
    template <int dim> struct X {
         template <int spacedim>
         void foo (Tensor<spacedim-dim,spacedim>)
       {}
    };
    
    template void X<1>::foo  (Tensor<1-1,1>);
    $
    
    
    =====Action Output:
    $xlC -c b.cc
    "b.cc", line 10.21: 1540-0288 (S) The function template
    parameter of type "Tensor<spacedim-(int) (1),spacedim>" cannot
    be initialized with an argument of type "Tensor<0,1>".
    $
    
    
    =====Expected Output:
    Should compile without any errors.
    

Local fix

  • n/a
    

Problem summary

  • USERS AFFECTED:
    The problem may be seen where a non-type template argument is
    used in a non-deduced context before arguments using it in a
    deducable context.
    
    PROBLEM DESCRIPTION:
    The use of a non-type template argument in a non-deduced
    context was stopping argument deduction in later arguments.
    

Problem conclusion

  • The above compiler problem has been resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV19832

  • Reported component name

    XL C/C++ AIX

  • Reported component ID

    5724X1300

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-18

  • Closed date

    2012-07-05

  • Last modified date

    2012-07-05

Fix information

  • Fixed component name

    XL C/C++ AIX

  • Fixed component ID

    5724X1300

Applicable component levels

  • RB10 PSY U852967

       UP C



Document information

More support for: XL C/C++ for AIX

Software version: 11.1

Reference #: IV19832

Modified date: 05 July 2012