From: matz@... (Yukihiro Matsumoto)
Date: 2000-11-28T14:51:29+09:00
Subject: [ruby-talk:6599] Re: Question on sort!

Hi,

In message "[ruby-talk:6597] Question on sort!"
    on 00/11/28, Dave Thomas <Dave@thomases.com> writes:

|Someone asked about a strange inconsistency in Rubicon, and I didn't
|know the answer. In light of the recent reverse! thread, I thought I'd 
|post it here:
|
|   [ 1, 2, 3 ].sort!		# => [1, 2, 3]
|   [ 1, 2 ].sort!		# => [1, 2]
|   [ 1 ].sort!                  # => nil
|   [  ].sort!                   # => nil
|
|This seems strange.

This is very preliminary behavior following
a-bang-method-returns-nil-if-it-does-not-modify-the-recevier
principle.  The behavior shall be more thorough in the future.

							matz.