[time.clock.hires] (original) (raw)

30 Time library [time]

30.7 Clocks [time.clock]

30.7.8 Class high_resolution_clock [time.clock.hires]

namespace std::chrono { class high_resolution_clock { public: using rep = unspecified;using period = ratio<_unspecified_, _unspecified_>;using duration = chrono::duration<rep, period>;using time_point = chrono::time_point<_unspecified_, duration>;static constexpr bool is_steady = unspecified;static time_point now() noexcept;};}

Objects of class high_resolution_clock represent clocks with the shortest tick period.

high_resolution_clock may be a synonym forsystem_clock or steady_clock.