[swift-evolution] [Review] SE-0065 A New Model for Collections and Indices

Gwendal Roué gwendal.roue at gmail.com
Mon Apr 11 11:45:53 CDT 2016


Thank you Dmitri!

> Le 11 avr. 2016 à 18:22, Dmitri Gribenko <gribozavr at gmail.com> a écrit :
> 
>> On Mon, Apr 11, 2016 at 9:20 AM, Dmitri Gribenko <gribozavr at gmail.com> wrote:
>> Hi,
>> 
>>> On Mon, Apr 11, 2016 at 9:16 AM, Gwendal Roué <swift-evolution at swift.org> wrote:
>>> Will it still be possible with the new protocol and types? Especially, how to I generate "BETWEEN 0 AND 17" from 0..<18 without a supporting collection that gives me the predecessor of 18?
>> 
>> You would either design your API to accept a CountableRange, or a
>> Range where Bound conforms to Strideable.
> 
> You could also make your API generic over RangeProtocol where Bound
> conforms to Strideable, check if the end point is contained in the
> range (detecting closed ranges), and if it is not, perform the
> adjustment.
> 
> 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 <gribozavr at gmail.com>*/


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