36     T1 t2(Duration1(3));  in main()  local
37     assert( (t1 == t2));  in main()
38     assert(!(t1 != t2));  in main()
42     T1 t2(Duration1(4));  in main()  local
43     assert(!(t1 == t2));  in main()
44     assert( (t1 != t2));  in main()
48     T2 t2(Duration2(3000));  in main()  local
49     assert( (t1 == t2));  in main()
50     assert(!(t1 != t2));  in main()
54     T2 t2(Duration2(3001));  in main()  local
55     assert(!(t1 == t2));  in main()
56     assert( (t1 != t2));  in main()
62     constexpr T1 t2(Duration1(3));  in main()  local
63     static_assert( (t1 == t2), "");  in main()
64     static_assert(!(t1 != t2), "");  in main()
68     constexpr T1 t2(Duration1(4));  in main()  local
69     static_assert(!(t1 == t2), "");  in main()
70     static_assert( (t1 != t2), "");  in main()
74     constexpr T2 t2(Duration2(3000));  in main()  local
75     static_assert( (t1 == t2), "");  in main()
76     static_assert(!(t1 != t2), "");  in main()
80     constexpr T2 t2(Duration2(3001));  in main()  local
81     static_assert(!(t1 == t2), "");  in main()
82     static_assert( (t1 != t2), "");  in main()