On Sun, Mar 28, 2004 at 09:41:09AM -0500, Randy W. Sims wrote:
> On 3/27/2004 9:15 PM, R. Joseph Newton wrote:
>
> >What is intriguing to me in this is that an overloaded operator
> >wouuld be attched to a variable. this sounds like it gets into
> >prtions of Perl that I've never really delved into. Is $! actually
> >sored as a number?
>
> As John pointed out, it is stored as both a number and a string. Here is
> a small example of how you can do something similar in your own code.
> See 'perldoc overload' for more info.
>
> #!/usr/bin/perl
>
> package NumStr;
[ snip ]
> my $ns = NumStr->new(42, 'The Answer to Life, the Universe, and Everything');
> printf("as number = '%d', as string = '%s'\n", $ns, $ns);
use Scalar::Util "dualvar";
my $ns = dualvar 42, 'The Answer to Life, the Universe, and Everything';
printf("as number = '%d', as string = '%s'\n", $ns, $ns);
> You can simulate more closely with XS:
dualvar is XS.
--
Paul Johnson - [EMAIL PROTECTED]
http://www.pjcj.net
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
<http://learn.perl.org/> <http://learn.perl.org/first-response>
