What are the best practices for using stdatomic in C++?

What are the best practices for using stdatomic in C++?

When using stdatomic in C++, it's important to understand memory orderings, atomic types, and their implications on performance.

Can you explain the different memory orderings available?

Sure! The main memory orderings are relaxed, acquire, release, and sequentially consistent. Each affects visibility and ordering of operations.

How do I choose the right memory ordering for my use case?

Choosing the right memory ordering depends on your specific requirements for performance and correctness. Generally, use relaxed for performance when possible, and acquire/release for synchronization.

Are there any common pitfalls to avoid?

Yes, common pitfalls include misunderstanding the implications of memory orderings, not using atomic types correctly, and assuming that atomic operations are always lock-free.