From: Dave Thomas <dave@...>
Date: 2008-08-30T08:37:53+09:00
Subject: Re: cycle in Ruby 1.9?


On Aug 29, 2008, at 6:25 PM, Charles Turner wrote:

> I've seen a number of references to being able to pass an argument to
> cycle() to limit its behavior to a finite number of iterations.
> However, I get this in irb 1.9.0:
>
> ruby 1.9.0 (2007-12-25 revision 14709) [i686-darwin9.4.0]
> spinoza:~$ irb
> irb(main):001:0> ('a'..'c').cycle(2)
> ArgumentError: wrong number of arguments(1 for 0)


Ruby 1.9 has changed a lot since Christmas. Here's the same code  
running on a build based on today's HEAD:

dave[RUBY3/Book 18:41:43*] ruby -ve "p(('a'..'c').cycle(2))"
ruby 1.9.0 (2008-08-30 revision 15427) [i386-darwin9.4.0]
#<Enumerator:0x0d85cc>

Expanding the Enumerator gives

dave[RUBY3/Book 18:41:49*] ruby -ve "p(('a'..'c').cycle(2).to_a)"
ruby 1.9.0 (2008-08-30 revision 15427) [i386-darwin9.4.0]
["a", "b", "c", "a", "b", "c"]


Cheers


Dave