How do I use multiple inheritance in C++?

How do I use multiple inheritance in C++?

Multiple inheritance in C++ allows a class to inherit from more than one base class. You can do this by specifying multiple base classes in the class declaration.

Can you give me an example of multiple inheritance?

Sure! Here's a simple example:

class Base1 {
public:
    void display() { std::cout << "Base1"; }
};

class Base2 {
public:
    void show() { std::cout << "Base2"; }
};

class Derived : public Base1, public Base2 {
};

int main() {
    Derived obj;
    obj.display(); // Calls Base1 method
    obj.show();    // Calls Base2 method
}

What are the potential issues with multiple inheritance?

One major issue is the "diamond problem," where a derived class inherits from two classes that have a common base class. This can lead to ambiguity.

How can I resolve the diamond problem?

You can resolve the diamond problem using virtual inheritance. This ensures that only one instance of the common base class is shared among the derived classes.