Issue #6515 has been updated by lellisga (Li Ellis Galardo).

File feature_6515_array_part_of_v3.patch added

@nobu you are right. I'll change the method to (arry1 - arry2).empty?. About the method functionally I thought of it like the subset method from Set. That's why it doesn't care about the order.
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Feature #6515: array.c: added method that verifies if an Array is part of another
https://bugs.ruby-lang.org/issues/6515#change-26957

Author: lellisga (Li Ellis Galardo)
Status: Assigned
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: 
Target version: 2.0.0


This method is like the include? method but instead of receiving a value and check if the array has it, it receives an array an check if it's part of another one.

https://github.com/ruby/ruby/pull/127


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