Re: Future of C++

Is it? How does a protected base class destructor solve the following
problem?

class Base {
public:
     virtual perform() = 0;

protected:
     ~Base() {} // non-virtual destructor
};

class Derived : public Base {
public:
     Derived() { rh_ = allocate_resource(); }
     ~Derived() { deallocate_resource(rh_); }

     virtual perform() { /* implement me */ }

private:
     // we're handling resources, careful with asignment
     Derived(const Derived&);
     Derived& operator=(const Derived&);

private:
     resource_handle_t rh_;
};

int main()
{
     std::auto_ptr<Base> pb(new Derived);