[Catalyst] Users hierarchy

[Andrew Rodland]

On Friday 06 June 2008 10:46:53 pm Jonathan Rockway wrote:
> * On Fri, Jun 06 2008, sindharta_tanuwijaya at yahoo.co.jp wrote:
> > Gulp, that should have been 0 :)
>
> Actually, it should have been "!" as in "if(!$found ...)".  Perl has a
> variety of "false" values including 0, undef, and the empty string.
> Perl's built-in boolean operators return "undef" or "1" as false or
> true, but other libraries use other values ("" and "hey, it worked!",
> for example).

Actually (0==1) is "" and defined, while we're picking nits. The point stands 
that if you want to test for truth you should simply test for truth.

Andrew