[swift-users] NSData vs Data write to string differently?

[Shawn Erickson]

In general you shouldn't depend on what description returns for classes,
etc. outside of your control unless it is documented (e.g. part of the API
contract). If you want a specific output you should code up something to
format the output as you need.

-Shawn

On Thu, Sep 22, 2016 at 3:33 PM Robert Nikander via swift-users <
swift-users at swift.org> wrote:

> Hi,
>
> I’ve run into a problem when updating to new Swift in Xcode 8. There was
> some NSData in a string like this:
>
>     “ … \(data) … “
>
> It changed to type `Data`, and the string went from hexadecimal bytes to
> writing “20 bytes”. I’m doing a quick bug fix app release now. I can’t
> remember if Xcode auto converted this for me. I thought it did.  ?  Either
> way… seems like they should behave the same here, no?
>
> Rob
>
>
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