fn month_add_overflowing(
month: impl RInto<ri8<1, 12>>,
span: impl RInto<ri32<{ _ }, { _ }>>,
) -> (ri8<1, 12>, ri16<{ _ }, { _ }>)Expand description
Adds the given span of months to the month given.
If adding (or subtracting) would result in overflowing the month value,
then the amount by which it overflowed, in units of years, is returned. For
example, adding 14 months to the month 3 (March) will result in returning
the month 5 (May) with 1 year of overflow.