What is std::exception in C++?

What is std::exception in C++?

std::exception is the base class for all standard exceptions in C++. It provides a way to handle errors in a consistent manner.

How do I use std::exception in my code?

You can throw an exception by using the 'throw' keyword followed by an instance of a derived class of std::exception.

Can you give me an example of a derived class?

Sure! A common derived class is std::runtime_error, which you can use to indicate errors that can only be detected during runtime.

What happens if I don't catch an exception?

If you don't catch an exception, it will propagate up the call stack, and if unhandled, it will terminate the program.