From: Tanaka Akira <akr@...17n.org>
Date: 2003-05-19T14:14:56+09:00
Subject: Re: ruby-dev summary #20159-20200

In article <8765o7czqc.fsf@serein.a02.aist.go.jp>,
  Tanaka Akira <akr@m17n.org> writes:

> [1,"1"].sort_by {|v| [v.class.name, v] }

Oops.  It shouldn't work because Module is not totally ordered.
(But I found a problem with Module comparison and reported it now.)

So, 

[1,"1"].sort_by {|v| b.object_id }

is better.  When the ordering is not interesting (e.g. for binary
search), object_id is useful enough.
-- 
Tanaka Akira