Multiple ChoiceIntermediate 45s
atomic default memory order
What is the default memory ordering of `std::atomic` load()/store() operations?
Options
- 1std::memory_order_relaxed, the weakest ordering, which imposes no synchronization at all.
- 2std::memory_order_seq_cst (sequentially consistent) — the strongest and most expensive.
- 3std::memory_order_acquire for loads and std::memory_order_release for stores by default.
- 4No ordering at all; it performs an ordinary non-atomic access unless told otherwise.
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