How do I use multiple interfaces in C++?

How do I use multiple interfaces in C++?

In C++, you can implement multiple interfaces by using multiple inheritance. This allows a class to inherit from more than one interface.

Can you give me an example of that?

Sure! Here's a simple example:

class InterfaceA {
public:
    virtual void methodA() = 0;
};

class InterfaceB {
public:
    virtual void methodB() = 0;
};

class MyClass : public InterfaceA, public InterfaceB {
public:
    void methodA() override {
        // Implementation of methodA
    }
    void methodB() override {
        // Implementation of methodB
    }
};

What are the potential issues with multiple inheritance?

Some potential issues include the diamond problem, where ambiguity arises if two base classes have a common ancestor. This can lead to complications in method resolution.

How can I avoid those issues?

You can use virtual inheritance to resolve the diamond problem. This ensures that only one instance of the common ancestor is shared among derived classes.