From: Robert Klemme <shortcutter@...>
Date: 2008-02-16T06:49:58+09:00
Subject: Re: Cute open range?

On 15.02.2008 07:34, Clifford Heath wrote:
> Joel VanderWerf wrote:
>> Does that do anything that Infinity doesn't do?
> 
> Hey, I forgot about Infinity, much better idea,
> and you get -Infinity too :-). But this does do
> one thing that Infinity doesn't: it works correctly
> with Bignums that are too big to be coerced to a
> float. I don't think that should concern me though :-).
> 
> Is there a standard place where Infinity is defined,
> or should I risk re-defining it? Or worse, test and
> define only if needed...

Why define or redefine?  Why not just

irb(main):001:0> N = 1/0.0
=> Infinity
irb(main):002:0> (1..N) === 2
=> true
irb(main):003:0> (1..N) === -2
=> false

etc?  I believe this is what Joel wanted to suggest.

Kind regards

	robert