In Swift, how do you convert a String to Int64?
int64, long-integer, string, swift
Solution
As of Swift 2.1.1 you can simply initialize `Int64` with `String`
let number: Int64? = Int64("42")
Problem
I am loading in lines from a text file with very large numbers. `String` has the `toInt` method, but how do you convert a string to an `Int64` which will be able to handle the large numbers? I don't see a `toInt64` method or a `toLong` etc. There must be a way, but I haven't found anything by searching yet. Alternatively I guess I could read the numbers in the string digit by digit (or by groups of digits) and then add them together with appropriate factors of ten, but that seems like overkill. Or maybe the proper way is to read the data in a binary form and convert it that way? Thanks