Hi,

In message "Re: [ruby-core:35767] Re: [Ruby 1.8 - Bug #4578] Fixnum.freeze not frozen?"
    on Fri, 15 Apr 2011 14:31:53 +0900, Magnus Holm <judofyr / gmail.com> writes:

|Isn't technically all Fixnums "frozen" (because you can't modify the state)?

Not really, since fixnums could have instance variables.

Thus, theoretically, there's room for freezing fixnums.  I don't think
it's worth the cost though.

							matz.