What is exception safety in programming?

What is exception safety in programming?

Exception safety refers to the guarantees a function provides about its behavior when exceptions occur. It ensures that resources are managed correctly and that the program remains in a valid state.

Can you explain the different levels of exception safety?

Sure! There are three main levels: no-throw guarantee, strong guarantee, and basic guarantee. The no-throw guarantee means a function will not throw exceptions. The strong guarantee ensures that if an exception occurs, the state remains unchanged. The basic guarantee means that if an exception occurs, some changes may happen, but the program will still be in a valid state.

How do I implement exception safety in my code?

You can implement exception safety by using RAII (Resource Acquisition Is Initialization), smart pointers, and try-catch blocks to handle exceptions gracefully.

What are some common pitfalls to avoid?

Common pitfalls include failing to release resources in case of exceptions, not using smart pointers, and neglecting to provide strong exception guarantees when necessary.