ndslice, using a slice in place of T[] in template parameters

[Jay Norwood via Digitalmars-d-learn]

On Monday, 11 January 2016 at 00:50:37 UTC, Ilya Yaroshenko wrote:
> I will add such function. But it is not safe to do so (Slice 
> can have strides not equal to 1). So it is like a hack (&ret[0, 
> 0, 0])[0 .. ret.elementsCount]).
>
> Have you made comparison between my and yours parallel versions?
> https://github.com/9il/examples/blob/parallel/image_processing/median-filter/source/app.d
> -- Ilya

Thanks.  No, I haven't studied it previously, but I see how you 
used the 'hack' in your code, and it works out to the statement 
below in my case.

medians[i] = median(vec, (&slb[task,0])[0 .. bigd]);

which compiled.  It ran in the faster time without the .array 
copying.
parallel time medians msec:87

That 'hack' seems to be related to the third from below.
https://dlang.org/spec/arrays.html
b = a;
b = a[];
b = a[0 .. a.length];