From: ts <decoux@...>
Date: 2005-11-06T23:08:01+09:00
Subject: Re: what does --can't define singleton method--  mean?

>>>>> "n" == nobu nokada <nobu.nokada@softhome.net> writes:

n>     /* Numerics should be values; singleton_methods should not be added to them */

 Yes, but the problem is with irb

moulon% irb
irb(main):001:0> require 'complex'
=> true
irb(main):002:0> c = Complex.new(1, 1)
=> Complex(1, 1)
irb(main):003:0>  c.angle
=> 0.785398163397448
irb(main):004:0> def c.angle() 12 end
TypeError: can't define singleton method "angle" for Complex
	from (irb):4
irb(main):005:0> c.angle
=> 12
irb(main):006:0> d = Complex.new(1, 1)
=> Complex(1, 1)
irb(main):007:0> d.angle
=> 0.785398163397448
irb(main):008:0>
moulon% 



Guy Decoux