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LI78457: ORDER OF AUTO_PTR COPY CONSTRUCTOR AFFECTING CONSTRUCTOR RESOLUTION

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APAR status

  • Closed as program error.

Error description

  • The order that constructors are declared in a class is affecting
    constructor resolution for a constructor that accepts auto_ptr
    as a parameter.  If the two constructor declarations in the
    following test case are swapped, the issues does not occur:
    
    
       === TEST CASE ===
    
    #include <memory>
    
    class Test
    {
      public:
        Test(const Test&);
        Test(std::auto_ptr<int> func);
    };
    
    std::auto_ptr<int> f();
    
    void func()
    {
      Test test( f() );
    }
    
    "test.cpp", line 14.8: 1540-1260 (S) An object of type
    "Test" cannot be constructed from an rvalue of type
    "std::auto_ptr<int>".
    

Local fix

  • Swap constructor order positioning.
    

Problem summary

  • PROBLEM DESCRIPTION:
    An internal cache in the compiler stores a set of conversions
    without user-defined conversions in the first pass.  This
    limits the conversion sequences chosen in the second pass.
    
    USERS AFFECTED:
    Users with user-defined conversion sequence with an explicit
    copy constructor defined inside of the class.
    

Problem conclusion

  • The compiler now stores user-defined conversions in the
    internal cache.  The issue is now resolved.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LI78457

  • 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:

    IV63647

  • 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 #: LI78457

Modified date: 25 February 2015