What are some examples of dynamic_cast in C++?

Can you explain what dynamic_cast is in C++?

Sure! dynamic_cast is used for safely converting pointers and references to base classes into derived classes in C++.

Can you give me an example of how to use dynamic_cast?

Of course! Here's a simple example:

class Base { ... };
class Derived : public Base { ... };

Base* b = new Derived();
Derived* d = dynamic_cast<Derived*>(b);
if (d) {
    // Successful cast
} else {
    // Cast failed
}

What happens if the cast fails?

If the cast fails, dynamic_cast returns nullptr for pointers and throws std::bad_cast for references.

Are there any performance implications of using dynamic_cast?

Yes, dynamic_cast can be slower than static_cast because it requires runtime type checking.