std::experimental::latch::latch

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explicit latch( ptrdiff_t value );
(1) (concurrency TS)
latch( const latch & ) = delete;
(2) (concurrency TS)
1) Constructs a latch and initializes its internal counter.
2) Copy constructor is deleted. latch is not copyable.

Parameters

value - the initial value of the internal counter; must be non-negative