Add to this calendar a weekend-days transition on the specified startDate having the specified weekendDays set. If a weekend-days transition already exists on startDate, replace the set of weekend days of that transition with weekendDays. See {Iterator Invalidation} for information regarding which iterators are affected by the use of this method. Note that this method does not extend the valid range of the calendar.
Declared in <bdlt_packedcalendar.h>
void
addWeekendDaysTransition(
Date const& startDate,
DayOfWeekSet const& weekendDays);