What are the limitations of std::atomic in C++?

What are the limitations of std::atomic in C++?

The main limitations of std::atomic include lack of support for complex data types, potential performance overhead, and limited atomic operations.

Can you explain why std::atomic might have performance overhead?

Certainly! std::atomic operations can introduce performance overhead due to memory barriers and synchronization mechanisms that ensure thread safety.

Are there any alternatives to std::atomic for managing shared data?

Yes, alternatives include using mutexes for locking, or higher-level abstractions like concurrent data structures, depending on your use case.

What about the portability of std::atomic across different platforms?

std::atomic is designed to be portable across platforms, but the actual performance and behavior can vary based on the underlying hardware architecture.