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      std::atomic<T>::is_always_lock_free

      From cppreference.com
      <cpp‎ |atomic‎ |atomic
       
       
      Concurrency support library
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      staticconstexprbool is_always_lock_free=/*implementation-defined*/;
      (since C++17)

      Equalstrue if this atomic type is always lock-free andfalse if it is never or sometimes lock-free.

      The value of this constant is consistent with both the macroATOMIC_xxx_LOCK_FREE, where defined, with the member functionis_lock_free and non-member functionstd::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 inconstant expressions.

      Feature-test macroValueStdFeature
      __cpp_lib_atomic_is_always_lock_free201603L(C++17)constexpr atomic<T>::is_always_lock_free

      [edit]See also

      checks if the atomic object is lock-free
      (public member function)[edit]
      checks if the atomic type's operations are lock-free
      (function template)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/atomic/atomic/is_always_lock_free&oldid=161430"

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