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std::atomic_flag::clear(3)    C++ Standard Libary   std::atomic_flag::clear(3)

NAME
       std::atomic_flag::clear - std::atomic_flag::clear

Synopsis
	  Defined in header <atomic>
	  void	clear(	std::memory_order  order = std::memory_order_seq_cst )
       (1) (since C++11)
	  volatile noexcept;
	  void clear( std::memory_order	order  =  std::memory_order_seq_cst  )
       (2) (since C++11)
	  noexcept;

	  Atomically changes the state of a std::atomic_flag to	clear (false).

Parameters
		  the memory synchronization ordering for this operation (can-
       not be
	  order	- std::memory_order_consume, std::memory_order_acquire,	or
		  std::memory_order_acq_rel)

See also
				     atomically	 sets the flag to true and ob-
       tains its previous
	  test_and_set		     value
				     (public member function)
	  atomic_flag_clear
	  atomic_flag_clear_explicit atomically	sets the value of the flag  to
       false
	  (C++11)		     (function)
	  (C++11)
	  memory_order		      defines  memory ordering constraints for
       the given atomic
	  (C++11)		     operation
				     (enum)

http://cppreference.com		  2022.07.31	    std::atomic_flag::clear(3)

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