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std::counting_semaphore<LeastMaxValue>:: ~counting_semaphore

From cppreference.net
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std::counting_semaphore
~counting_semaphore ( ) ;
(since C++20)

Destroys the counting_semaphore object.

Notes

It is only safe to invoke the destructor if all threads have been notified. The programmer must ensure that no threads attempt to wait on * this once the destructor has been started. The destructor does not notify and release any waiting threads.