Issue #10726 has been updated by gogo tanaka.


@ Shota Fukumori, @Marc-Andre Lafortune
> * Write description of your proposal in the ticket.

Implement method which returns set of all subsets of +self+.

> * What is your use case?
> I don't see myself ever using this and also wonder who would and in what circumstances.

As for me it was necessary for solving some combinational problem or optimization.
I believe power set is essential with collection of unordered values with no duplicates. 

But if you guys think It isn't worth it, I'm ok in that case.

> I think there's no need to split patches for same purpose... at this case patch except the last one should be one patch file.
> powerset or power_set would be a more appropriate name.


OK I'm gonna resend patch in doing so.

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Feature #10726: [PATCH 4/4] * New methods: Set#power
https://bugs.ruby-lang.org/issues/10726#change-51253

* Author: gogo tanaka
* Status: Open
* Priority: Normal
* Assignee: 
----------------------------------------
Hi, there.

Here are 4 patches.

```
implement_set#power.patch ... Implement Set#power
update_test_set.rb.patch  ... Add tests for Set#power
update_NEWS.patch         ... Update NEWS for Set#power
fix_indent_NEWS.patch     ... Adjustment indent of NEWS
```

take your time.

gogo.

---Files--------------------------------
implement_set#power.patch (1007 Bytes)
update_test_set.rb.patch (838 Bytes)
update_NEWS.patch (672 Bytes)
fix_indent_NEWS.patch (888 Bytes)


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