Function iso3166_3::validity
[−]
[src]
pub fn validity<'a>(from: Option<i16>, to: Option<i16>) -> Option<Vec<FormerCountryCode<'a>>>
Returns an Option
Examples
Retrieve codes valid from years 1974-1990:
extern crate iso3166_3; fn main() { let countries = iso3166_3::validity(Some(1974), Some(1990)).unwrap(); }
Retrieve codes valid from the year 1990 onward:
extern crate iso3166_3; fn main() { let countries = iso3166_3::validity(Some(1990), None); }
Retrieve codes valid until 1998 and prior:
extern crate iso3166_3; fn main() { let countries = iso3166_3::validity(None, Some(1998)); }