Retrieve data from heterogeneous std::list

Question

In the below code I am simply trying to experiment with a Heterogeneous std::list where I have stored three Derived class object in a list of type Base*. When retrieving data fr

Answer 1

Easiest way might be to define Base like so:

class Base {
public:
    virtual const std::string& getData() = 0;
}

And then have your various derived classes implement getData() as appropriate. That way, your output loop could just be:

for (Base* b : l) {
    cout << b->getData();
}