Function numberkit::as_i64d

pub fn as_i64d<S>(text: S, def: i64) -> i64 where
    S: AsRef<OsStr>, 

covert string to i64 with default, will check covert error, if error use default value.

Example

assert_eq!(-1 as i64, numberkit::as_i64d("a", -1 as i64));