NthDayOfWeekInMonth is an enum for the nth DayOfWeek in MonthOfYear (e.g.
first Saturday in January).
The fifth NthDayOfWeekInMonth is equivalent to the last DayOfWeek in MonthOfYear. See the OPENSTUDIO_ENUM documentation in utilities/core/Enum.hpp for documentation of the class structure. The actual macro call is:
((first)(first)(boost::gregorian::nth_day_of_the_week_in_month::first))
((second)(second)(boost::gregorian::nth_day_of_the_week_in_month::second))
((third)(third)(boost::gregorian::nth_day_of_the_week_in_month::third))
((fourth)(fourth)(boost::gregorian::nth_day_of_the_week_in_month::fourth))
((fifth)(fifth)(boost::gregorian::nth_day_of_the_week_in_month::fifth))
);