std::atomic::is_always_lock_free
From cppreference.com
static constexpr bool is_always_lock_free = /*implementation-defined*/;
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(since C++17) | |
Equals true
if this atomic type is always lock-free and false
if it is never or sometimes lock-free.
The value of this constant is consistent with both the macro ATOMIC_xxx_LOCK_FREE
, where defined, with the member function is_lock_free and non-member function std::atomic_is_lock_free.
[edit] Notes
There is no non-member function equivalent of this static member constant because non-member functions take pointers to atomic types, and therefore aren't as useful in constant expressions.
[edit] See also
checks if the atomic object is lock-free (public member function) |
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(C++11)
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checks if the atomic type's operations are lock-free (function template) |
is_always_lock_free
[static] (C++17)
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indicates that the type is always lock-free (public static member constant) |