Function `days_in_year`

const fn days_in_year(year: i32) -> u16

Get the number of calendar days in a given year.

The returned value will always be either 365 or 366.

# use time::util::days_in_year;
assert_eq!(days_in_year(1900), 365);
assert_eq!(days_in_year(2000), 366);
assert_eq!(days_in_year(2004), 366);
assert_eq!(days_in_year(2005), 365);
assert_eq!(days_in_year(2100), 365);