What are the key features of std::atomic in C++11?

What are the key features of std::atomic in C++11?

std::atomic provides a way to perform atomic operations on variables, ensuring thread safety without locks.

Can you explain how std::atomic differs from regular variables?

Unlike regular variables, std::atomic ensures that operations on the variable are atomic, meaning they are completed in a single step without interruption.

What types of operations can I perform with std::atomic?

You can perform operations like load, store, exchange, and compare-and-swap, all of which are atomic.

Are there any performance considerations when using std::atomic?

Yes, while std::atomic can improve thread safety, it may introduce overhead compared to non-atomic operations, so use it judiciously.