From: David Abrahams <dave@boost-consulting.com>
That said, I'd really like to de-emphasize the importance of this clipping behavior. We already have a plausible way to represent a
Agreed.
particular month, e.g. Feb/2003. I'd like to be able to write:
30/(Feb/2003 + 3*month)
To get 30/May/2003.
I like it, but I'm not sure I'm seeing in that what you meant. If May were an enumerator of type boost::gregorian::months, or whatever, then: day_and_month operator /(greg_day, months) { return day_and_month(greg_day, months); } date operator /(day_and_month d_m, greg_year y) { return date(y, d_m.month, d_m.day); } date operator /(greg_day d, month_and_year m_y) { return date(m_y.year, m_y.month, day); } month_and_year operator /(months, greg_year) { return month_and_year(months, greg_year); } plus operators for adding 3*month to a month_and_year should allow: date d(30/May/2003); d = 30/(Feb/2003 + 3*month); -- Rob Stewart stewart@sig.com Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;