How does exception handling work in C++ libraries?

How does exception handling work in C++ libraries?

In C++, exception handling is done using try, catch, and throw keywords. You can throw exceptions when an error occurs and catch them to handle the error.

Can you give me an example of throwing and catching an exception?

Sure! Here's a simple example:

#include <iostream>
#include <stdexcept>

void mayGoWrong() {
    bool errorOccurred = true;
    if (errorOccurred) {
        throw std::runtime_error("Something went wrong!");
    }
}

int main() {
    try {
        mayGoWrong();
    } catch (const std::runtime_error& e) {
        std::cout << "Caught an exception: " << e.what() << '\n';
    }
}

This code throws a runtime error if something goes wrong and catches it in the main function.

What types of exceptions can I throw in C++?

You can throw any type of object in C++, but it's common to throw standard exceptions like std::runtime_error, std::logic_error, or custom exception classes derived from std::exception.

Is it a good practice to use exceptions for control flow?

Generally, it's not recommended to use exceptions for regular control flow. They should be used for exceptional circumstances to maintain code clarity and performance.