From: Tanaka Akira <akr@...17n.org>
Date: 2005-03-06T13:03:52+09:00
Subject: [ruby-dev:25813] Re: 2F1E: ruby 1.9.0 (2005-03-04) [i686-linux] (boron)

In article <878y53sccr.wl%zn@mbf.nifty.com>,
  Kazuhiro NISHIYAMA <zn@mbf.nifty.com> writes:

>   1) Failure:
> test_object(PPCycleTest) [/home/akr/autobuild/tmp/autobuild/ruby-trunk/20050304T194448/lib/ruby/1.9/pp.rb:622]:
> <"#<Object:0x408ab890 @a=#<Object:0x408ab890...>>\n"> expected but was
> <"#<Object:0x408ab890 @a=#<Object:0x408ab890 ...>>\n">.

これの原因は inspect の結果が変化したことです。

% ruby -ve 'o = Object.new; o.instance_variable_set :@a, o; p o' 
ruby 1.9.0 (2005-02-22) [i686-linux]
#<Object:0x401c7ae8 @a=#<Object:0x401c7ae8 ...>>

% ./ruby -ve 'o = Object.new; o.instance_variable_set :@a, o; p o'
ruby 1.9.0 (2005-03-06) [i686-linux]
#<Object:0x401c7804 @a=#<Object:0x401c7804...>>

これが意図された変化ならば pp を直しますが、そうなのかどうか判断がつき
ません。どうなのでしょうか?
-- 
[田中 哲][たなか あきら][Tanaka Akira]