Наследование и текучий интерфейс

main.cpp

#include <iostream>
using namespace std;

class Base {
    int propertyBase;
public:
    template<class T>
    T& setPropertyBase(int propertyBase) {
        this->propertyBase = propertyBase;
        return *(T*)this;
    }
    void print() {
        cout << "propertyBase == " << propertyBase << endl;
    }
};

class Derived : public Base {
    int propertyDerived;
public: 
    Derived& setPropertyDerived(int propertyDerived) {
        this->propertyDerived = propertyDerived;
        return *this;
    }
    void print() {
        Base::print();
        cout << "propertyDerived == " << propertyDerived << endl;
    }
};

int main() {
    Derived derived;
    derived.setPropertyBase<Derived>(2).setPropertyDerived(1);
    derived.print();
    return 0;
}