From: Tony Arcieri <tony@...>
Date: 2009-12-24T14:29:52+09:00
Subject: Re: Strange behavior of unary +@ for Fixnum?

--000e0cd6ac1262d262047b72bafb
Content-Type: text/plain; charset=ISO-8859-1

On Wed, Dec 23, 2009 at 12:43 AM, Ryan Davis <ryand-ruby@zenspider.com>wrote:

> class Fixnum
>  def +@
>    puts "YES #{self}"
>  end
>
>   def -@
>    puts "NO #{self}"
>   end
> end
>
> -7          # => -7
> +7          # =>  7
> -(7)        # => NO 7
> +(7)        # => YES 7
> 7.send(:-@) # => NO 7
> 7.send(:+@) # => YES 7
>

class Fixnum
 def +@
   puts "YES"
 end

 def -@
   puts "NO"
 end
end

%w(+ -).each { |op| 4.times { 42.send "#{op}@" } }

Kraftwerk?

-- 
Tony Arcieri
Medioh! A Kudelski Brand

--000e0cd6ac1262d262047b72bafb--