operator fun plus(other: Period): Period
Add each component of another period to each component of this period.
ArithmeticException - if overflow occurs
operator fun plus(years: IntYears): Periodoperator fun plus(months: IntMonths): Periodoperator fun plus(weeks: IntWeeks): Periodoperator fun plus(days: IntDays): Periodoperator fun plus(years: LongYears): Periodoperator fun plus(months: LongMonths): Periodoperator fun plus(weeks: LongWeeks): Periodoperator fun plus(days: LongDays): Period