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std::atomic...g_notify_one(3) C++ Standard Libarystd::atomic...g_notify_one(3)

NAME
       std::atomic_flag_notify_one - std::atomic_flag_notify_one

Synopsis
	  Defined in header <atomic>
	  void atomic_flag_notify_one( std::atomic_flag* object	) noexcept;
	  void	atomic_flag_notify_one(	 volatile  std::atomic_flag*  object )
       (since C++20)
	  noexcept;

	  Performs atomic notifying operations.

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

	  Equivalent to	object->notify_one().

Parameters
	  object - pointer to the atomic_flag 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_flag)
	  notify_all		  notifies  all	threads	blocked	waiting	on the
       atomic object
	  (C++20)		 (public member	function of std::atomic_flag)
	  atomic_flag_notify_all   notifies    all    threads	 blocked    in
       atomic_flag_wait
	  (C++20)		 (function)

http://cppreference.com		  2022.07.31	 std::atomic...g_notify_one(3)

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