std::counting_semaphore<LeastMaxValue>::counting_semaphore

`constexpr explicit counting_semaphore( std::ptrdiff_t desired );`	(1)	(since C++20)
`counting_semaphore( const counting_semaphore& ) = delete;`	(2)	(since C++20)

1) Constructs an object of type std::counting_semaphore with the internal counter initialized to desired.

2) Copy constructor is deleted.

1) Both desired >= 0 and desired <= max() are true.

desired - the value to initialize counting_semaphore's counter with

Throws nothing.

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