From: Jason Mayer <slamboy@...>
Date: 2007-01-30T23:06:11+09:00
Subject: Re: Decending Range

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On 1/30/07, dblack@wobblini.net <dblack@wobblini.net> wrote:
>
> Hi --
>
> On Tue, 30 Jan 2007, Jason Mayer wrote:
>
> > Ranges can be constructed using objects of any type, as long as the
> objects
> > can be compared using their <=> operator and they support the succ
> method to
> > return the next object in sequence.
>
> That's actually not a necessary condition -- you can have a range of
> floats too.  A range is fundamentally a kind of boolean test filter
> for inclusion, and only secondarily a sort of ersatz array.  I tend to
> think too much is sometimes expected of ranges in the latter role.


Oh.  Maybe someone should update the content at
http://www.ruby-doc.org/core/classes/Range.html

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