#include <cstddef>
 
template <typename T> class Object
{
private:
        template <typename U>
        bool operator==(const Object<U>& other) const
        {
                return false;
        }
};
 
int main()
{
        Object<int> o1;
        Object<long> o2;
 
        (o1 == o2);
 
        return 0;
}