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std::experi...ier::barrier(3) C++ Standard Libarystd::experi...ier::barrier(3)

NAME
       std::experimental::barrier::barrier  - std::experimental::barrier::bar-
       rier

Synopsis
	  explicit barrier( std::ptrdiff_t num_threads ); (1) (concurrency TS)
	  barrier( const barrier & ) = delete;		  (2) (concurrency TS)

	  1) Constructs	a barrier for num_threads participating	 threads.  The
       set of
	  participating	 threads is the	first num_threads threads to arrive at
       the
	  synchronization point.
	  2) Copy constructor is deleted; barrier is not copyable.

Parameters
	  num_threads -	the number of participating threads for	 the  barrier;
       must be
			non-negative

Notes
	  If  num_threads  is zero, the	set of participating threads is	empty,
       and barrier can
	  only be destroyed.

http://cppreference.com		  2022.07.31	 std::experi...ier::barrier(3)

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