#include <iostream>
using namespace std;
class Base {
public:
Base() {};
~Base() {};
};
template<class T>
class Derived: public Base {
T _val;
public:
Derived() {}
Derived(T val): _val(val) {}
T raw() {return _val;}
};
int main()
{
Base * b = new Derived<int>(1);
Derived<int> * d = b;
cout << d->raw() << endl;
return 0;
}
I have some polymorphism problem right now and the code above summarizes everything. I created a Base class pointer and I put the pointer of a new derived template class in it. Then I created a new pointer for the derived template class and I want it to have the reference the base class pointer points to. Even though Base pointer (b) points to a Derived, the reference cannot be passed to Derived class pointer (d) because there's no known conversion from Base * to Derived<int> *
(as what the compiler says).
So is there a trick or an alternative way to be able to do it? Thanks in advance.