What is exception safety in C++?

What is exception safety in C++?

Exception safety in C++ refers to the guarantees that a function provides regarding its behavior when an exception is thrown.

Can you explain the different levels of exception safety?

Sure! The three main levels are: no-throw guarantee, strong exception safety, and basic exception safety.

What is the no-throw guarantee?

The no-throw guarantee means that a function will not throw any exceptions, ensuring that the program remains stable.

How does strong exception safety differ from basic exception safety?

Strong exception safety guarantees that if an exception is thrown, the program state remains unchanged, while basic exception safety only ensures that resources are properly released.

Can you give an example of a function with strong exception safety?

Certainly! A function that uses RAII (Resource Acquisition Is Initialization) principles can provide strong exception safety by ensuring resources are managed automatically.