[grand-rapids-pm-list] Perl Puzzle!

grand-rapids-pm-list at pm.org grand-rapids-pm-list at pm.org
Fri Oct 10 08:15:12 PDT 2008


OH, 0E0, I spit at thee ...

--matt

On Fri, Oct 10, 2008 at 8:12 AM, <grand-rapids-pm-list at pm.org> wrote:

> Or the ever popular true-but-zero value: 0E0
>
> --Jason
>
> On Fri, Oct 10, 2008 at 11:00 AM,  <grand-rapids-pm-list at pm.org> wrote:
> > use Test::More tests=>2;
> >
> > my $str = "-0";
> > ok($str>=0);
> > ok($str ge 0);
> >
> >
> > --matt
> >
> > On Fri, Oct 10, 2008 at 7:52 AM, <grand-rapids-pm-list at pm.org> wrote:
> >>
> >> Here's something that tripped me up that I thought I'd share as a Perl
> >> Puzzle...
> >>
> >> Q1: For what value(s) of $a do the following comparisons return
> different
> >> results?
> >>
> >> $a >= 0
> >> $a ge 0
> >>
> >> Q2: Ok, it isn't hard to guess. But, why? The answer reveals something
> >> unique about Perl that is very important to keep in mind.
> >>
> >>
> >> Feel free to reply to the list. I'll post the answer later today if no
> one
> >> nails it.
> >>
> >> -Ed
> >>
> >> _______________________________________________
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> >> grand-rapids-pm-list at pm.org
> >> http://mail.pm.org/mailman/listinfo/grand-rapids-pm-list
> >
> >
> >
> > --
> > Matthew Heusser,
> > Blog: http://xndev.blogspot.com
> >
> > General, you are listening to a machine.  Do the world a favor and don't
> act
> > like one. -- Dr. Stephen Falken, "War Games", The Movie
> >
> > _______________________________________________
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> > grand-rapids-pm-list at pm.org
> > http://mail.pm.org/mailman/listinfo/grand-rapids-pm-list
> >
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>



-- 
Matthew Heusser,
Blog: http://xndev.blogspot.com

General, you are listening to a machine.  Do the world a favor and don't act
like one. -- Dr. Stephen Falken, "War Games", The Movie
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