> On Dec 18, 2015, at 8:52 PM, Dmitri Gribenko via swift-evolution
> <[email protected]> wrote:
>
>> On Fri, Dec 18, 2015 at 6:21 PM, Joe Groff <[email protected]> wrote:
>>
>> On Dec 18, 2015, at 6:08 PM, Dmitri Gribenko <[email protected]> wrote:
>> There's also a possibility that we add 'out' parameters in the future, and
>> if 'inout' would be spelled '&', then we would need to find another sigil
>> for 'out'.
>>
>> We have multiple returns. Why would we ever add out parameters?
>
> I don't want to turn this thread into a discussion about out
> parameters, but one reason would be to replace
> AutoreleasingUnsafeMutablePointer. Another one is to add labels to
> the output parameters:
>
> let (day, month, year) = parseDate()
> let (year, day, month) = parseDate() // bug?
>
I haven't had a need for multiple returns yet although I'm really glad they are
in the language. They are much nicer than out parameters.
I'm really surprised if it isn't possible to use labeled tuples for multiple
returns. It seems like that should be possible either now or in the future.
(If I was at a computer right now I would try it)
> Dmitri
>
> --
> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
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