Ranges & containers : is it possible to get a SortedRange from a RedBlackTree ?

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On Monday, 7 July 2014 at 19:20:24 UTC, Fr wrote:
> It's in the example above :
>
> SortedRange!(MyObject[]) opSlice() { 
> sequence[].array.assumeSorted; }
>
> I thought that that using ".array" would lead to instantiating 
> something.

Yes, this *will* instantiate an array and copy all of the items 
from the RedBlackTree into it. There's not really a way around it 
(unless you upgrade to 2.066 so assumeSorted will accept the 
result of sequence[] without having the intermediate array).