std::counting_semaphore<LeastMaxValue>:: max

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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 .

Return value

The internal counter's maximum possible value, as a std::ptrdiff_t .

Notes

For specialization binary_semaphore , LeastMaxValue is equal to 1 .

As its name indicates, the LeastMaxValue is the minimum max value, not the actual max value. Thus max ( ) can yield a number larger than LeastMaxValue .