pub unsafe extern "C" fn proj_get_area_of_use_ex(
    ctx: *mut PJ_CONTEXT,
    obj: *const PJ,
    domainIdx: c_int,
    out_west_lon_degree: *mut f64,
    out_south_lat_degree: *mut f64,
    out_east_lon_degree: *mut f64,
    out_north_lat_degree: *mut f64,
    out_area_name: *mut *const c_char
) -> c_int