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std::experi...:count_down(3)  C++ Standard Libary std::experi...:count_down(3)

NAME
       std::experimental::latch::count_down	     -	       std::experimen-
       tal::latch::count_down

Synopsis
	  void count_down( ptrdiff_t n = 1); (1) (concurrency TS)

	  Atomically decrements	the internal counter by	n without blocking the
       caller.

	  If n is greater than the value of the	internal counter or  is	 nega-
       tive, the behavior
	  is undefined.

	  This	operation synchronizes with all	calls that block on this latch
       and all is_ready
	  calls	on this	latch that returns true.

Parameters
	  n - the value	by which the internal counter is decreased

Return value
	  (none)

Exceptions
	  Throws nothing.

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

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