From: keiju@... (ÀÐÄÍ·½¼ù )
Date: 1996-10-30T17:00:38+09:00
Subject: [ruby-list:946] Rational[coerce(Re: ruby 0.99.3-961030 available) ]

���ゅ＠SHLジャパン��. 

In [ruby-list :00943 ] the message: "[ruby-list:943] coerce(Re: ruby
0.99.3-961030 available) ", on Oct/30 16:11(JST) matz@caelum.co.jp
(Yukihiro Matsumoto) writes:

>普通�算術演算����������(���り���)．
>
>  def + other
>    case other.type
>    when "Fixnum"
>        :
>    else
>      x, y = other.coerce(self)
>      return x + y
>    end
>  end
>
>���らRational�場�
>
>  def coerce other
>    if other.type == "Float"
>      return other, Float(self)
>    else
>      super
>    end
>  end
>
>��れ��題�解決��る����考����．

�る��. 分�り���. 試�����.

��方法��, 複数��既存クラス間�調整�微妙���, 以������全
�実���能�����り����.


��間�直��もら����������...

class Rational < Numeric
  def Rational.new(a, b)
    :
end

を定義��も,

 q = Rational.new(1, 2)

を実行�る� undefined method new �出��.

__
..........................................石塚 圭樹＠SHLジャパン(株)...
------------->アドレス変�り���!! e-mail: keiju@shljapan.co.jp <----