RFR: 8283892: Compress and expand bits [v4]

[Paul Sandoz]

On Thu, 7 Apr 2022 20:02:51 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Examples added in latest commit.
>
> I see you've added a comment on each example too, I think this really helpers readers to see how they can be used.
> 
> The class description of both Integer and Long have an implementation note (they pre-date @implNote) referencing Hacker's Delight. We could potentially expand the list of methods mentioned but it's not strictly necessary are they are just examples.

I also saw that on the class doc and considered the new methods fit neatly under the category of "bit twiddling" methods.

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PR: https://git.openjdk.java.net/jdk/pull/8115