Marcio Faustino wrote:
On Sep 23, 12:01 am, [EMAIL PROTECTED] (John W. Krahn) wrote:
So a function like 'open' can be overridden:
$ perl -le' print prototype "CORE::open"'
*;$@
But it looks like 'defined' cannot:
$ perl -le' print prototype "CORE::defined"'
Thanks, I didn't know that functions whose arguments cannot be
expressed by a prototype couldn't be overridden.
That's the only reason (AFAIK) that prototypes were added to Perl, to override
built-in functions.
John
--
Perl isn't a toolbox, but a small machine shop where you
can special-order certain sorts of tools at low cost and
in short order. -- Larry Wall
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