From: Martin DeMello <martindemello@...>
Date: 2004-08-12T16:01:11+09:00
Subject: Re: Bug in Range#end with exclusive ranges?

Austin Ziegler <halostatue@gmail.com> wrote:
> 
> In mathematical range notation, the difference between 0..50 and
> 0...50 is [0, 50] and [0, 50). Thus:

It doesn't seem quite right that Ruby should do this though

irb(main):001:0> a = (0..50)
a = (0..50)
=> 0..50
irb(main):002:0> b = (0.0..50.0)
b = (0.0..50.0)
=> 0.0..50.0
irb(main):004:0> a.last
a.last
=> 50
irb(main):005:0> a.last.class
a.last.class
=> Fixnum
irb(main):006:0> b.last.class
b.last.class
=> Float
irb(main):007:0> a.include?(49.9)
a.include?(49.9)
=> true
irb(main):008:0> b.include?(49.9)
b.include?(49.9)
=> true

Shouldn't Range#include work differently for integers?

martin