What are the limitations of std::atomic in C++11?
The std::atomic in C++11 provides atomic operations, but it has limitations like lack of support for all types, and no atomic operations for user-defined types.
Can you explain why user-defined types aren't supported?
User-defined types aren't supported because std::atomic requires a well-defined memory model and operations that can be performed atomically, which is not guaranteed for complex types.
What about performance issues with std::atomic?
Performance can be impacted due to potential memory barriers and the overhead of ensuring atomicity, especially in high-contention scenarios.
Are there alternatives to std::atomic for atomic operations?
Yes, alternatives include using mutexes for locking or leveraging lock-free programming techniques, but they come with their own trade-offs.
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