Hello Daniweb!
I'm coding a small application and I've hit a road block. I've been using C++ for almost two years now, but to be honest, I hardly use dynamic polymorphism (i prefer static), and so with great embarrassment, I come here to ask this:
My code is basically structured like this. I have a base class that many derive from, and it has 'common' functions that are virtual (of course :P). Any ways, there is another common function, but in each of the sub classes, it has a different return type. Now, i thought that if i have a 'Base' pointer, that pointed to allocated subclasses, I could still access non virtual functions...but of course i can't...so my question is, what do you do in a situation like this?
// this is now my code is structured :D
#include <iostream>
class Base {
public:
virtual void Common() {} // a function common to all sub classes
};
class Class1 : public Base {
public:
int GetValue() { return 1; } // same as Class2 but int
};
class Class2 : public Base {
public:
char GetValue() { return '2'; } // same as Class1 but char
};
int main() {
Base* b = new Base;
b->Common(); // ok
delete b;
b = new Class1;
*b->GetValue(); // error!
delete b;
b = new Class2;
*b->GetValue(); // also error!
delete b;
return 0;
}Thanks in advance :D
