From: matz@... (Yukihiro Matsumoto)
Date: 2002-12-27T12:40:29+09:00
Subject: Re: 1.8.0 changes behavior of == in Comparable

Hi,

In message "1.8.0 changes behavior of == in Comparable"
    on 02/12/27, "Tim Hunter" <cyclists@nc.rr.com> writes:

|Running my unit tests with 1.8.0, I noticed that the behavior of == in
|Comparable has changed from 1.6.8 to 1.8.0. In 1.6.8, if <=> raises an
|exception, == catches it and returns false. In 1.8.0, == doesn't catch the
|exception.
|
|This change seems reasonable, but I'd be interested in learning more about
|the reasoning behind it. Anybody care to comment?

Performance.  1.6 "<=>" method reported its errors by exceptins,
whereas 1.8 "<=>" would report errors by returning nil.

							matz.