From: nobu@...
Date: 2016-05-17T06:45:09+00:00
Subject: [ruby-core:75544] [Ruby trunk Feature#5899] chaining comparsions.

Issue #5899 has been updated by Nobuyoshi Nakada.

Description updated

----------------------------------------
Feature #5899: chaining comparsions.
https://bugs.ruby-lang.org/issues/5899#change-58674

* Author: Ondrej Bilka
* Status: Feedback
* Priority: Normal
* Assignee: Yukihiro Matsumoto
----------------------------------------
Migration from python to ruby is problematic because ruby lacks certain features.
Most important python advantage is chained comparison
We must wrap every comparison like described below.

```ruby
puts "yes" if 1<2<3<4

class Fixnum
  def <(a)
    ((self<=>a)==-1)&&a
  end
end
class FalseClass
  def <(a)
    false
  end
end
```




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