partialShuffle only shuffles subset.

[Ivan Kazmenko via Digitalmars-d-learn]

On Tuesday, 19 May 2015 at 10:00:33 UTC, BlackEdder wrote:
> The documentation seems to indicate that partialShuffle: 
> Partially shuffles the elements of r such that upon returning 
> r[0..n] is a random subset of r, (which is what I want), but it 
> seems that partialShuffle actually only shuffles the first 
> subset of the range (which you could do probably also do by 
> [0..n].randomShuffle).
>
> This different behaviour was problem created since: 
> https://issues.dlang.org/show_bug.cgi?id=11738. Does anyone 
> know what the intended behaviour is/was?

Reading the current documentation and unittests, I now also 
believe the fix was a mistake.  Reopened the issue for now with a 
comment: https://issues.dlang.org/show_bug.cgi?id=11738#c2

I hope Joseph Rushton Wakeling looks into it soon.