[FWP] Golf (7, er 16 strokes is par!)

[Dean Hudson <dean@ero.com>]

On Mon, 1 May 2000, Jeff Pinyan wrote:

> >Actually, there is still a bug in the $_&$_-1 logic.  Not only does it
> >work for positive powers of 2, it also (falsely) reports that 0 is a
> >power of 2 (i.e. 0&-1 == 0).
> 
> Well of course.  This was meant for positive integers, as my proof below
> clarifies.

Anyone have any solutions that do the same thing but work with 0? I've got
a solution that works with 0 but it's 16 characters. I'd like to see
something shorter, if possible.

dean.
--
my $email = qr{ dean(h)?@(?(1)verio\.net    # @ work if h
                            | ero\.com) }x; # other



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