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Re: perlsub prototype sub(_) sub foo(_)

by farang (Hermit)
on Jun 30, 2013 at 07:32 UTC ( #1041554=note: print w/ replies, xml ) Need Help??


in reply to perlsub prototype sub(_) sub foo(_)

From perlsub:

As the last character of a prototype, or just before a semicolon, a @ or a % , you can use _ in place of $ : if this argument is not provided, $_ will be used instead.

So I guess _ being the only character in the prototype, is also the last, and is equivalent to $ there.

Update: I see from the response of Athanasius above that my guess is slightly off. I didn't quite understand what the documentation is saying.


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