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Top Forums Shell Programming and Scripting Query related to references in array in Perl Post 302700125 by parthmittal2007 on Thursday 13th of September 2012 05:52:01 AM
Old 09-13-2012
Query related to references in array in Perl

Hi All
I have a doubt and want to be cleared I am using
Code:
@array = (10, 20);
$rarray = \@array;
#print "$rarray\n";
#print "@$rarray\n";

 $rr=  \$array[0];
 #print $$rr;
 $rr++;
 print $$rr;

As you can see the $rr contains the reference to the first element of the array , now as the definition say array contains the continuous memory location, so when I incremented the $rr with 1 so it should now print the value for $array[1]..
Please correct me if I am wrong.

---------- Post updated at 04:52 AM ---------- Previous update was at 03:02 AM ----------

Any Idea
 

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IO::Lines(3)						User Contributed Perl Documentation					      IO::Lines(3)

NAME
IO::Lines - IO:: interface for reading/writing an array of lines SYNOPSIS
use IO::Lines; ### See IO::ScalarArray for details DESCRIPTION
This class implements objects which behave just like FileHandle (or IO::Handle) objects, except that you may use them to write to (or read from) an array of lines. They can be tiehandle'd as well. This is a subclass of IO::ScalarArray in which the underlying array has its data stored in a line-oriented-format: that is, every element ends in a " ", with the possible exception of the final element. This makes "getline()" much more efficient; if you plan to do line- oriented reading/printing, you want this class. The "print()" method will enforce this rule, so you can print arbitrary data to the line-array: it will break the data at newlines appropriately. See IO::ScalarArray for full usage and warnings. VERSION
$Id: Lines.pm,v 1.3 2005/02/10 21:21:53 dfs Exp $ AUTHORS
Primary Maintainer David F. Skoll (dfs@roaringpenguin.com). Principal author Eryq (eryq@zeegee.com). President, ZeeGee Software Inc (http://www.zeegee.com). Other contributors Thanks to the following individuals for their invaluable contributions (if I've forgotten or misspelled your name, please email me!): Morris M. Siegel, for his $/ patch and the new "getlines()". Doug Wilson, for the IO::Handle inheritance and automatic tie-ing. perl v5.18.2 2005-02-10 IO::Lines(3)
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