Re: Subroutine and @_ confusion

[gohaku]

On Apr 5, 2004, at 9:40 AM, [EMAIL PROTECTED] wrote:

In a message dated 4/5/2004 7:52:33 AM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
Hi People

I'm trying to get a grip on passing @_ to subroutines. Or rather NOT
passing it.
I have a package:

sub HLOM::Links::new {
   my ($class, %arg) = @_;
   my $userid = 0;
   if ($arg{userid}) {$userid = int $arg{userid};}
   bless {
       _UserID => $userid,
       _LinkID => 0,
       _longmessage => "",
       _shortmessage => "",
       _error => ""
   }, $class;
}
and several subroutines.

These subroutines are called externally ie 
HLOM::Links->FindLink(LinkID
=> $id);


I have seen shift used in Subroutines like: "NumberOfApples = 
shift(@_);",
any reason for writing the subroutine that way?

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