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Postings from July 2010
On Wed, Jul 28, 2010 at 04:58:44PM +0100, Nicholas Clark wrote:
>
>
> the problem being that the implementation of true/false is
>
> is there a string value?
> Y: is it "0" or ""?
> is there a numeric value?
> Y: is it == 0
> ...
The order of first checking for a string value, and only then for
numeric one has bitten me more than once - using an overloaded object
which has numeric overload:
use overload '+0' => sub {0};
say !!bless []; # 1
use overload '""' => sub {""};
say !!bless []; # empty string
Abigail
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