[ruby-core:114805] [Ruby master Feature#19839] Need a method to check if two ranges overlap

19 Sep 2023

      Issue #19839 has been updated by shouichi (Shouichi Kamiya).

Shouldn't `none?` handle empty ranges? Currently, it raises an error.

```
...
(...-Float::INFINITY).none?
(irb):1:in `each': can't iterate from NilClass (TypeError)

If `none?` handles empty ranges, then `overlap?` can return false when one of the ranges is empty.

----------------------------------------
Feature #19839: Need a method to check if two ranges overlap
https://bugs.ruby-lang.org/issues/19839#change-104649

* Author: shouichi (Shouichi Kamiya)
* Status: Closed
* Priority: Normal
----------------------------------------
It would be convenient to have a method that checks if two ranges overlap. For example,

(0..10).overlap?(5..15) #=> true
(0..10).overlap?(20..30) #=> false
```

-- 
https://bugs.ruby-lang.org/