[time.clock.system.members] (original) (raw)

30 Time library [time]

30.7 Clocks [time.clock]

30.7.2 Class system_clock [time.clock.system]

30.7.2.2 Members [time.clock.system.members]

using system_clock::rep = _unspecified_;

Constraints: system_clock​::​duration​::​min() < system_clock​::​duration​::​zero() is true.

[Note 1:

This implies that rep is a signed type.

— _end note_]

static time_t to_time_t(const time_point& t) noexcept;

Returns: A time_t object that represents the same point in time as twhen both values are restricted to the coarser of the precisions of time_t andtime_point.

It is implementation-defined whether values are rounded or truncated to the required precision.

static time_point from_time_t(time_t t) noexcept;

Returns: A time_point object that represents the same point in time as twhen both values are restricted to the coarser of the precisions of time_t andtime_point.

It is implementation-defined whether values are rounded or truncated to the required precision.