Hi Paul,
I think you're looking for:
sub suby {
$temp=$_[0];
print "$_[0]\n";
print "$$temp[0]\n";
}
I'm not sure why. It seems like it should be print "$$_[0]\n";, but I believe the
results I got from the interpreter. Output:
ARRAY(0x1ab28e0)
paul
ARRAY(0x1ab28e0)
paul
Joseph
Paul Kr
On Mon, Jan 06, 2003 at 04:29:41PM -0500, Paul Kraus wrote:
> I don't understand why the output of the two print statements inside the
> subroutine is different. The one only prints the new line.
Hmm, I get "Use of uninitialized value in concatenation (.) or string at
qw" for both.
> #!/usr/bin/
-Original Message-
From: Paul Kraus [mailto:[EMAIL PROTECTED]]
Sent: Monday, January 06, 2003 3:30 PM
To: Perl
Subject: passing array ref to subroutine
Because the second one is printing the '0' item fo an array called 'temp' you need to
do
$$temp[0] the same as you did $$_[0]
Dan
I d
You should always include "use strict" and "use warnings" when you are
writing code. Take a look at the subryoutine and you will see:
$temp = $_[0] means that temp is now a reference to @array
$temp[0] is the first element of the array @temp, which was created when you
used the element
$$_[0][0
