On Tue, Apr 18, 2006 at 02:39:35PM -0700, John W. Krahn wrote:
> Chas Owens wrote:
> > On 4/18/06, Irfan J Sayed <[EMAIL PROTECTED]> wrote:
> > snip
> >>can anybody plz tell me what i am doing wrong
> > snip
> >
> > What you are doing wrong is making assumptions and not reading the
> > documentation. This is being compounded by your inexperience with
> > Perl.
> >
> > First let us tackle the Perl ignorance: true and false are not 1 and
> > 0. In fact, there is no one value for either true or false. The
> > definition goes something like this: the values literal zero (0),
> > undefined (undef), and empty string ('') are false and anything else
> > is true. Note that this means the string '0e0' is true even though it
> > is numerically equivalent to 0.
>
> Perl actually has four false values: 0, undef, '' and '0'. One being the
> number zero and another a string with a single zero character.
Good point. Thanks for reminding me (us?) of that. I'd forgotten about
the string-zero version of "false" somewhere along the way.
--
Chad Perrin [ CCD CopyWrite | http://ccd.apotheon.org ]
"The first rule of magic is simple. Don't waste your time waving your
hands and hopping when a rock or a club will do." - McCloctnick the Lucid
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