Thanks Ole, that’s definitely nicer, I’ve updated my code!
Still not exactly ergonomic though :-)
-Chris
> On Jan 11, 2018, at 3:28 AM, Ole Begemann via swift-dev <swift-dev@swift.org>
> wrote:
>
>
>
> In this particular example, you can use UInt8.init(ascii:) to make it a
> little nicer (no need for the charToByte function):
>
> func hexToInt(_ c : UInt8) -> UInt8 {
> switch c {
> case UInt8(ascii: "0")...UInt8(ascii: "9"):
> return c - UInt8(ascii: "0")
> case UInt8(ascii: "a")...UInt8(ascii: "f"):
> return c - UInt8(ascii: "a") + 10
> case UInt8(ascii: "A")...UInt8(ascii: "F"):
> return c - UInt8(ascii: "A") + 10
> default: fatalError("invalid hexadecimal character")
> }
> }
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