Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
std::atomic::fetch_or(3)      C++ Standard Libary     std::atomic::fetch_or(3)

NAME
       std::atomic::fetch_or - std::atomic::fetch_or

Synopsis
	  T fetch_or( T	arg,
	  std::memory_order order =			     (since C++11)
	  std::memory_order_seq_cst  )	noexcept;	       (member only of
       atomic<Integral>
	  T fetch_or( T	arg,				     template special-
       ization)
	  std::memory_order order =
	  std::memory_order_seq_cst ) volatile noexcept;

	  Atomically replaces the current value	with the result	of bitwise  OR
       of the value and
	  arg.	The  operation	is  read-modify-write operation. Memory	is af-
       fected according	to
	  the value of order.

	  The	  volatile-qualified	 version     is	    deprecated	    if
       (since C++20)
	  std::atomic<T>::is_always_lock_free is false.

Parameters
	  arg	- the other argument of	bitwise	OR
	  order	- memory order constraints to enforce

Return value
	  The  value immediately preceding the effects of this function	in the
       modification
	  order	of *this.

See also
	  atomic_fetch_or	   replaces the	atomic object with the	result
       of bitwise OR
	  atomic_fetch_or_explicit  with a non-atomic argument and obtains the
       previous	value
	  (C++11)		   of the atomic
	  (C++11)		   (function template)

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

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=std::atomic::fetch_or&sektion=3&manpath=FreeBSD+Ports+15.0>

home | help