From: "trans.  (T. Onoma)" <transami@...>
Date: 2004-10-05T04:00:11+09:00
Subject: Re: Too Many Ways?

On Monday 04 October 2004 11:09 am, Brian Candler wrote:
> I can't see what's hard about implementing them: have a couple of constant
> objects for positive and negative infinity (like 'true' and 'false').
>
> Then define -@ method so that -INF == NEGINF, and away you go.
>
> I'd be quite happy to have this just for ranges, although I expect everyone
> would want them to integrate with numbers: 3 * INF == INF and so on.

Will you give it a go?

> Or can we use the Float 'Infinity' for this?

Hmm... lets see...

irb(main):018:0> i = 10.0/0
=> Infinity
irb(main):019:0> r = 0..i
=> 0..Infinity
irb(main):020:0> r.member?(3)

And she hangs :(

I think it could work, but she needs some tuning. The idea that infinity is a 
Float is a bit odd too. Probably should be it's own class. Any one see 
otherwise?

Also, has anyone already gone to the trouble of creating an Infinity class?

T.