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      std::atomic_ref<T>::notify_one

      From cppreference.com
      <cpp‎ |atomic‎ |atomic ref

      [edit template]
       
       
      Concurrency support library
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      std::atomic_ref
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      atomic_ref::notify_one
      Operations for arithmetic types
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      void notify_one()constnoexcept;
      (constexpr since C++26)

      Performs atomic notifying operations.

      If there is a thread blocked in atomic waiting operation (i.e.wait()) on*ptr, then unblocksat least one such thread; otherwise does nothing.This overload participates in overload resolution only ifstd::is_const_v<T> isfalse.

      Contents

      [edit]Notes

      This form of change-detection is often more efficient than simple polling or pure spinlocks.

      [edit]Example

      This section is incomplete
      Reason: no example

      Defect reports

      The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

      DRApplied toBehavior as publishedCorrect behavior
      LWG 3508
      (P3323R1)
      C++20notify_one was meaningless forconst Tconstrained to accept only non-constT

      [edit]See also

      blocks the thread until notified and the atomic value changes
      (public member function)[edit]
      blocks the thread until notified and the atomic value changes
      (function template)[edit]
      notifies a thread blocked in atomic_wait
      (function template)[edit]
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/atomic/atomic_ref/notify_one&oldid=114502"

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