[LLVMbugs] [Bug 10730] New: Wrong hiding of virtual function

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10730

           Summary: Wrong hiding of virtual function
           Product: new-bugs
           Version: unspecified
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: clang2007-inheritance at yahoo.de
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=7116)
 --> (http://llvm.org/bugs/attachment.cgi?id=7116)
The code file (main.cpp)

If I compile the added file using:

clang -c -Wall -pedantic main.cpp

I receive the following warnings and errors:


main.cpp:17:19: warning: 'CObject::Get' hides overloaded virtual function
[-Woverloaded-virtual]
        virtual CObject* Get(long nIndex)
                         ^
main.cpp:7:21: note: hidden overloaded virtual function 'CRoot::Get' declared
here
        virtual const long Get()
                           ^
main.cpp:28:21: error: too few arguments to function call, expected 1, have 0
        std::cout << o.Get() << std::endl;
                     ~~~~~ ^


Warning and Error are both wrong. If you duplicate the method in question from
CRoot to CObject the error disappears.

The code from the file:

#include <iostream>

class CRoot
{
public:

    virtual const long Get()
    {
        return 1;
    }
};

class CObject : public CRoot
{
public:

    virtual CObject* Get(long nIndex)
    {
        return this;
    }
};


CObject o;

int main()
{
    std::cout << o.Get() << std::endl;
    return 0;
}

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