Description Marc-André Laperle 2011-08-26 13:35:22 EDT

Using CDT 8.0.0.201108031635

template <class T>
class SmartPtr
{
public:
    template<typename OtherT>
    operator const SmartPtr<OtherT>&() const
    {
        return *this;
    }

    template<typename OtherT>
    operator SmartPtr<OtherT>() const
    {
        return *this;
    }
};

class A
{
};

class B : public A
{
};

void func(SmartPtr<A>)
{

}

int main()
{
    SmartPtr<B> b;
    func(b); // func is ambiguous
}


This code compiles with MinGW GCC 4.4 but it doesn't with VC 9. I'm not sure who's right but gcc calls the operator that returns a value and that looks right to me.