54 	using HMS = std::chrono::hh_mm_ss<Duration>;  in check_precision()
55 	using CT  = std::common_type_t<typename Duration::rep, std::chrono::seconds::rep>;  in check_precision()
56 	using Pre = std::chrono::duration<CT, std::ratio<1, powers[width]>>;  in check_precision()
62 	using microfortnights = std::chrono::duration<int, std::ratio<756, 625>>;  in main()
64 	static_assert( check_precision<std::chrono::hours,                               0>(), "");  in main()
65 	static_assert( check_precision<std::chrono::minutes,                             0>(), "");  in main()
66 	static_assert( check_precision<std::chrono::seconds,                             0>(), "");  in main()
67 	static_assert( check_precision<std::chrono::milliseconds,                        3>(), "");  in main()
68 	static_assert( check_precision<std::chrono::microseconds,                        6>(), "");  in main()
69 	static_assert( check_precision<std::chrono::nanoseconds,                         9>(), "");  in main()
70 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   2>>, 1>(), "");  in main()
71 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   3>>, 6>(), "");  in main()
72 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   4>>, 2>(), "");  in main()
73 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   5>>, 1>(), "");  in main()
74 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   6>>, 6>(), "");  in main()
75 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   7>>, 6>(), "");  in main()
76 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   8>>, 3>(), "");  in main()
77 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,   9>>, 6>(), "");  in main()
78 	static_assert( check_precision<std::chrono::duration<int, std::ratio<  1,  10>>, 1>(), "");  in main()