1namespace solidware.financials.service.domain.accounting
 2{
 3    static public class DateRange
 4    {
 5        static public Range<Date> up_to(Date date)
 6        {
 7            return Date.First.to(date);
 8        }
 9
10        static public Range<Date> to(this Date start, Date end)
11        {
12            return new SequentialRange<Date>(start, end);
13        }
14    }
15}