std::atomic_ref<T>::is_always_lock_free

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Atomic operations library
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std::atomic_ref
 
static constexpr bool is_always_lock_free = /*implementation-defined*/;
 (since C++20)

Equals true if this operations on this atomic_ref type is always lock-free and false if it is never or sometimes lock-free.

The value of this constant is consistent with the result of member function is_lock_free.

See also

 checks if the atomic_ref object is lock-free
(public member function)
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