The
duration template uses the
treat_as_floating_point trait to
help determine if a
duration object can be converted to another
duration with a different tick
period.If
treat_as_floating_point_v<Rep> is
true, then implicit conversions
are allowed among
durations
.Otherwise, the implicit convertibility
depends on the tick
periods of the
durations
.[
Note 1:
The intention of this trait is to indicate whether a given class behaves like a floating-point
type, and thus allows division of one value by another with acceptable loss of precision
.If
treat_as_floating_point_v<Rep> is
false,
Rep will be treated as
if it behaved like an integral type for the purpose of these conversions
. —
end note]