partialShuffle only shuffles subset.
Ivan Kazmenko via Digitalmars-d-learn
digitalmars-d-learn at puremagic.com
Tue May 19 07:31:20 PDT 2015
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.
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