std::counting_semaphore<LeastMaxValue>::max
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                    < cpp | thread | counting semaphore
                    
                                                            
                    | constexpr std::ptrdiff_t max() noexcept; | (since C++20) | |
Returns the internal counter's maximum possible value, which is greater than or equal to LeastMaxValue. For specialization binary_semaphore, LeastMaxValue is equal to 1.
Return value
The internal counter's maximum possible value, as a std::ptrdiff_t.