Can you explain what memory ordering means in std::atomic?
Memory ordering in std::atomic refers to the rules that determine how operations on atomic variables are seen by different threads.
What are the different memory orderings available in std::atomic?
The main memory orderings are relaxed, acquire, release, acquire-release, and sequentially consistent.
How do these memory orderings affect performance?
Different memory orderings can impact performance by allowing more optimization opportunities, but they also affect visibility and synchronization.
Can you give an example of when to use each memory ordering?
Sure! Use relaxed for performance when no synchronization is needed, acquire for reading shared data, and release for writing.
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