From: Yoshiyuki Kusano <kusano@...>
Date: 1998-07-14T20:37:16+09:00
Subject: [ruby-list:8745] matrix.rb Bug? (Re: [BUG?] mathn.rb)

草野です．

mathnの件は早速ruby 1.1b9_30を手にいれたらうまく行きました．
ありがとうございます．

で，すいませんが，今度はmatrix.rbで問題が発生してしまいました．

require "matrix"
a = Vector.elements([1, 0, 1])
b = a.dup
/usr/local/lib/ruby/matrix.rb:814:in `clone': can't clone NilClass
(TypeError)
        from /usr/local/lib/ruby/matrix.rb:814:in `dup'
        from /usr/local/lib/ruby/matrix.rb:814:in `init_elements'
        from /usr/local/lib/ruby/matrix.rb:809:in `send'
        from /usr/local/lib/ruby/matrix.rb:809:in `initialize'
        from /usr/local/lib/ruby/matrix.rb:805:in `new'
        from /usr/local/lib/ruby/matrix.rb:805:in `new'
        from /usr/local/lib/ruby/matrix.rb:805:in `elements'
        from /usr/local/lib/ruby/matrix.rb:860:in `clone'
        from -:3:in `dup'
        from -:3

ruby 1.1b9_28ではうまく行っていたようです．