tomaszkam 27d1e1e54e Removed undefined behavioir from year_mont_day_last::day (#456) ...

This is done to make the result of calling day() on
year_month_day_last object that is !ok() unspecified.
Checked only months, are there are needed to avoid UB.

2019-05-28 09:01:14 -04:00

..

date

Removed undefined behavioir from year_mont_day_last::day (#456)

2019-05-28 09:01:14 -04:00