What does the function declaration "sub function($$)" mean?

Posted by Neeraj on Stack Overflow See other posts from Stack Overflow or by Neeraj
Published on 2010-03-20T22:44:24Z Indexed on 2010/03/21 3:01 UTC
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perl

|

subroutines

|

prototypes

I have been using Perl for some time, but today I came across this code:

sub function1($$)
{
   //snip
}

What does this mean in Perl?

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