sort, .array and folding on immutable data (finding most common character in column of matrix)

[Nicholas Wilson via Digitalmars-d-learn]

On Monday, 19 December 2016 at 09:24:38 UTC, Ali wrote:
> On Monday, 19 December 2016 at 00:11:49 UTC, Nicholas Wilson 
> wrote:
>> [...]
>
> Ok so laziness stops as soon as sort is required on a range 
> then?

No. Because a lazy range is not random access, and therefore does 
not meet sorts requirement.

> Ahh, because in place algorithms?

Yes

>Are there any plans in
> D to make is to that you can output copies to collections so 
> that you could do something like filter.transpose.sort and just 
> have it output a modified copy?

None that I know.

>
> [...]

Hmm, for the other problem you could do

chain(only(T(dchar.max, uint.max)),range)

and still use the seedless version.

> Thanks for input so far!