From: Jingjing Duan <lists@...>
Date: 2012-08-01T07:49:13+09:00
Subject: Re: rubeque: Unidentified X Object

Brian Candler wrote in post #1070831:
> Let Ruby tell you:
>
> Fixnum.instance_methods.find_all { |op| "X" * 2.send(op,2) == "" rescue
> nil}
>
> Then repeat for the other case, and see which operator is common to
> both.

Good trick. Forgot the spaceship operator returns an integer instead of 
a boolean...

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