Function iso3166_3::validity

pub fn validity<'a>(
    from: Option<i16>, 
    to: Option<i16>
) -> Vec<FormerCountryCode<'a>>

Returns a Vec of ISO 3166-3 FormerCountryCodes that were valid from a range of the given years.

Examples

Retrieve codes valid from years 1974-1990:

let _countries = iso3166_3::validity(Some(1974), Some(1990));

Retrieve codes valid from the year 1990 onward:

let _countries = iso3166_3::validity(Some(1990), None);

Retrieve codes valid until 1998 and prior:

let _countries = iso3166_3::validity(None, Some(1998));