From: Robert Klemme <shortcutter@...>
Date: 2010-07-07T02:09:18+09:00
Subject: Re: WTF? Case statement disfunctional?

2010/7/6 Caleb Clausen <vikkous@gmail.com>:
> On 7/6/10, Pieter Hugo <pieter@internext.co.za> wrote:

>> Thanks for the prompt and helpful responses. Your proposals work, but I
>> am still unhappy about spending an hour tracking this bug.
>>
>> So CASE uses '===' and not '==', am I correct? So why does
>>
>> a = 1
>> a === Fixnum
>>
>> ==> false
>
> but,
>  Fixnum===a      #=>true
>
> === is not symmetric with respect to its arguments. I forget what the
> right word for that is.

Maybe you meant "noncommutative".
http://en.wikipedia.org/wiki/Noncommutative

Kind regards

robert

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