Hi,
On Wednesday 05 Jan 2011 09:02:29 jyang wrote:
> Hi all :
>
> I watch a function that is package "Test::More " ,which is that segment
> such as :
> sub ok ($;$) { } and sub is ($$;$) { }
>
> please tell me what means "($;$)" , or give me some reference manual let
> me know it; thank you!
These are called prototypes and can be used to specify the type of arguments
(scalar, array, hash etc.) that the function should expect. The useful rule of
thumb is to never use them in your own code:
https://www.socialtext.net/perl5/index.cgi?prototype
Regards,
Shlomi Fish
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