Re: Why is NSString.UTF8String unavailable in Swift?
Re: Why is NSString.UTF8String unavailable in Swift?
- Subject: Re: Why is NSString.UTF8String unavailable in Swift?
- From: Kyle Sluder <email@hidden>
- Date: Sat, 21 Mar 2015 23:20:02 -0600
On Sat, Mar 21, 2015, at 10:10 PM, Jens Alfke wrote:
>
> > On Mar 21, 2015, at 8:43 PM, Charles Srstka <email@hidden> wrote:
> >
> > If you convert between String and NSString a lot, it’ll have performance implications (which is why bridging to NSString just to get -UTF8String isn’t really a good idea).
>
> Then what would be the best way, given a String, to pass it to a C API
> that wants a char*?
String has a .utf8 property that returns a UTF8View. UTF8View is a
Collection of UInt8, and therefore a SequenceType.
Array has an initializer that takes a SequenceType.
--Kyle Sluder
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