From: nobu@...
Date: 2006-08-13T17:25:03+09:00
Subject: Re: Again Range=== bug

Hi,

At Sun, 13 Aug 2006 15:59:24 +0900,
Ondrej Bilka wrote in [ruby-core:08609]:
> Problem of discrete membership at Range#=== is that it returns unexpected 
> result when treating float-like Classes. Class Time is represented as
> float so
> (Time.new...Time.new+5)===Time.new returns false. 

Really?

$ ruby -ve 't = Time.new; p((t...t+5)===t+1)'
ruby 1.9.0 (2006-08-12) [i686-linux]
true

And Time isn't float.

> I choose Comparable#between? but I rather change its
> arguments to low.between?(value, high,excl) because now value
> doesnt know what range represents and can only guess that
> they are same type.(I dont know how frequently its used. )

Double dispatch may be considerable, but that change of
"between?" feels doubtful to me.

-- 
Nobu Nakada