How does exception handling work in C++ using throw and catch?

Can you explain how exception handling works in C++ with throw and catch?

Sure! In C++, exception handling is done using the keywords 'throw' and 'catch'. When an error occurs, you can 'throw' an exception, which is then 'caught' by a corresponding 'catch' block.

What types of exceptions can I throw?

You can throw any type of object as an exception, but it's common to throw objects of classes derived from std::exception for better error handling.

Can you give me a simple code example?

Of course! Here's a simple example:

#include <iostream>
#include <stdexcept>

void test() {
    throw std::runtime_error("An error occurred!");
}

int main() {
    try {
        test();
    } catch (const std::exception& e) {
        std::cout << e.what() << std::endl;
    }
    return 0;
}

What happens if I don't catch an exception?

If you don't catch an exception, the program will terminate, and the default exception handler will be invoked, which may lead to a crash.