Rob Stewart writes:
That makes the result of the expression quite explicit. I can't see any problems with that approach. I'd expect an exception if the resulting month doesn't have the requested day. OTOH, if date's ctor were to take an extra argument, or if there was a date factory function supplying the different behavior, you could specify that you want clipping to the last day of the designated month:
date(d.month() + 2 * months, d.day(), clip_to_eom) make_date_clipped_to_end_of_month(d.month() + 2 * months, d.day())
IMHO, simple date wrappers can give more readability: d.allow_clipping_to_eom() + 2*months; d.disallow_clipping_to_eom() + 2*months; or allow_clipping_to_eom(d) + 2*months; disallow_clipping_to_eom(d) + 2*months; where adding months to date directly isn't allowed. Regards, Janusz