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std::atomic_notify_one(3)     C++ Standard Libary    std::atomic_notify_one(3)

NAME
       std::atomic_notify_one -	std::atomic_notify_one

Synopsis
	  Defined in header <atomic>
	  template< class T >
	  void	atomic_notify_one(  std::atomic<T>* object );		(since
       C++20)
	  template< class T >
	  void atomic_notify_one( volatile std::atomic<T>* object );

	  Performs atomic notifying operations.

	  If there is a	thread	blocked	 in  atomic  waiting  operation	 (i.e.
       std::atomic_wait(),
	  std::atomic_wait_explicit(),	or  std::atomic::wait())  on  *object,
       then unblocks at
	  least	one such thread; otherwise does	nothing.

	  Equivalent to	object->notify_one().

Parameters
	  object - pointer to the atomic object	to notify

Return value
	  (none)

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

Example
	   This	section	is incomplete
	   Reason: no example

See also
	  notify_one		notifies  at  least  one thread	waiting	on the
       atomic object
	  (C++20)	       (public member function of std::atomic<T>)
	  notify_all	       notifies	all threads  blocked  waiting  on  the
       atomic object
	  (C++20)	       (public member function of std::atomic<T>)
	  atomic_notify_all    notifies	all threads blocked in atomic_wait
	  (C++20)	       (function template)
	  atomic_wait
	  atomic_wait_explicit blocks the thread until notified	and the	atomic
       value changes
	  (C++20)	       (function template)
	  (C++20)

http://cppreference.com		  2022.07.31	     std::atomic_notify_one(3)

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