44     typedef boost::chrono::time_point<cycle_count> time_point;  typedef
46     static time_point now()  in now()
50         return time_point(duration(++tick));  // fake access to clock cycle count  in now()
62     typedef boost::chrono::time_point<approx_cycle_count> time_point;  typedef
64     static time_point now()  in now()
69         return time_point(duration(++tick * nanosec_per_sec / frequency));  in now()
82     clock::time_point start = clock::now();  in cycle_count_delay()
83     clock::time_point stop = start + delay;  in cycle_count_delay()
86     clock::time_point end = clock::now();  in cycle_count_delay()
96     clock::time_point start = clock::now();  in cycle_count_delay()
97     clock::time_point stop = start + delay;  in cycle_count_delay()
100     clock::time_point end = clock::now();  in cycle_count_delay()
111     clock::time_point start = clock::now();  in cycle_count_delay()
112     clock::time_point stop = start + delay;  in cycle_count_delay()
115     clock::time_point end = clock::now();  in cycle_count_delay()
125     clock::time_point start = clock::now();  in cycle_count_delay()
126     clock::time_point stop = start + delay;  in cycle_count_delay()
129     clock::time_point end = clock::now();  in cycle_count_delay()