How can I implement error handling using abstract classes in C++?

How can I implement error handling using abstract classes in C++?

You can create an abstract class with a pure virtual function for error handling. Then, derive specific classes that implement this function.

Can you give me an example of how to define the abstract class?

Sure! Here's a simple example:

class ErrorHandler {
public:
    virtual void handleError(const std::string& error) = 0; // Pure virtual function
};

What about the derived class? How do I implement the handleError function?

In the derived class, you would override the handleError function like this:

class FileErrorHandler : public ErrorHandler {
public:
    void handleError(const std::string& error) override {
        std::cout << "File error: " << error << std::endl;
    }
};

How do I use these classes in my main function?

You can create an instance of the derived class and call the handleError method like this:

int main() {
    FileErrorHandler fileError;
    fileError.handleError("File not found");
    return 0;
}