From: Chris Pine <nemo@...>
Date: 2003-04-09T07:54:36+09:00
Subject: Re: The "!" and "?" characters.

Well, I don't know why that other code segfaulted (ideas, anyone?), but this
works:

  irb(main):010:0> class Integer
  irb(main):011:1>   define_method('!') do
  irb(main):012:2*     raise 'oops' if self < 0
  irb(main):013:2>     break 1 if self == 0
  irb(main):014:2>     (self-1).send('!') * self
  irb(main):015:2>   end
  irb(main):016:1> end
  => #<Proc:0x401e5f88@(irb):11>
  irb(main):017:0> 5.send('!')
  => 120

Perhaps not as satisfying for you, though, huh?

:)

Chris