[PATCH 4/4] * New methods: Set#power
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.
Updated by gogotanaka (Kazuki Tanaka) about 6 years ago
@ 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.
Updated by radan (Radan Skorić) about 6 years ago
It is a well defined mathematical operation but it seems to me it has a very narrow usage.
IMHO, maybe such functionality would fit better in a separate gem. There are other well defined mathematical set operations and if they all ended up on standard Set, it would get pretty bloated.