But still, why this method http://dlang.org/phobos/std_datetime.html#.Date.add only supports "month" or "years" while this one http://dlang.org/phobos/std_datetime.html#.Date.roll does ?
But still, why this method http://dlang.org/phobos/std_datetime.html#.Date.add only supports "month" or "years" while this one http://dlang.org/phobos/std_datetime.html#.Date.roll does support days ?*
