Issue #14082 has been reported by kachick (Kenichi Kamiya).

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Bug #14082: Enumerator#size from Enumerable#cycle returns 0 when the object is empty
https://bugs.ruby-lang.org/issues/14082

* Author: kachick (Kenichi Kamiya)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-darwin16]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN
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github: https://github.com/ruby/ruby/pull/1742

Is this an intentional behavior?

```ruby
p([].cycle.size) #=> 0
p({}.cycle.size) #=> Infinity 
```

Array#cycle already special handled empty arrays. So similar behavior in Enumerable#cycle with the #size sounds reasonable to me.



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