Hi,

In message "Re: Why does Ruby have callcc?"
    on 03/08/06, Dan Debertin <airboss / nodewarrior.org> writes:

|> So, how'd it get there? Is there some killer use for callcc that I'm
|> missing? Was it just for the "gee whiz" factor?
|
|I can't explain the "how'd it get there" part; I'll leave that to Matz
|and friends.

The official answer is "why not".  I provide the features, you use
them.
							matz.