HelenOS sources

micro             496 uspace/lib/cpp/include/__bits/chrono.hpp     using microseconds = duration<int64_t, micro>;
micro             604 uspace/lib/cpp/include/__bits/chrono.hpp             using period     = micro;
micro             648 uspace/lib/cpp/include/__bits/chrono.hpp             using period     = micro;
micro             734 uspace/lib/cpp/include/__bits/chrono.hpp             constexpr chrono::duration<long double, micro> operator ""us(long double usecs)
micro             736 uspace/lib/cpp/include/__bits/chrono.hpp                 return chrono::duration<long double, micro>{usecs};
micro             149 uspace/lib/cpp/include/__bits/thread/threading.hpp                 return std::chrono::duration_cast<std::chrono::duration<Rep, micro>>(dur).count();