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Postings from October 2003
Graham Barr <gbarr@pobox.com> writes:
> On 6 Oct 2003, at 17:52, Gisle Aas wrote:
>
> > Graham Barr <gbarr@pobox.com> writes:
> >
> >>>> $ perl -wle 'print ref bless [] => 0'
> >>>> 0
> >>>
> >>> I would be tempted to make that bless illegal.
> >>
> >> I dont see why we should treat that specially. People can always bless
> >> into a package which has overload and have that return false.
> >
> > I don't think you are able to overload on the class name. The HvNAME
> > is just a char*.
>
> I did not mean overload the package name itself, but rather
>
> package False;
>
> use overload bool => sub { 0 }
>
> 1;
>
> Any reference blessed into that package will be false in a boolean
> context.
Sure. But since that does not make ref(bless [], "False") false so I
don't see how this is relevant to whether bless $something, "0" should
be allowed.
Regards,
Gisle
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