Ask Solem > Getopt-LL > Getopt::LL::DLList::Node

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Module Version: 1.0.0   Source  

NAME ^

Getopt::LL::DLList::Node - Node in a doubly linked list.

VERSION ^

This document describes Getopt::LL::DLList::Node version 1.0.0

SYNOPSIS ^

DESCRIPTION ^

     use Getopt:LL::DLList::Node;
 
     my $head_node   = Getopt::LL::DLList::Node->new('top');
     my $middle_node = Getopt::LL::DLList::Node->new('middle');
     my $bottom_node = Getopt::LL::DLList::Node->new('bottom');
 
     $head_node->set_next(   $middle_node );
     $middle_node->set_prev( $head_node   );
     $middle_node->set_next( $bottom_node );
     $bottom_node->set_prev( $middle_node );
 
     my $current_node = $head_node;
     while ($current_node) {
         print $current_node->data, q{, }; 
 
         $current_node = $current_node->next;
     }
 
     # prints: top, middle, bottom
 
 
     # got to free the nodes, as they use circular references.
     for my $node ($head_node, $middle_node, $bottom_node) {
         $node->free;
     }

SUBROUTINES/METHODS ^

CONSTRUCTOR

new($data)

Create a new node.

ATTRIBUTES

next

set_next

The next node in the linked list.

prev

set_prev

The previous node in the linked list.

data

set_data

The data for this node.

INSTANCE METHODS

free()

Free the memory for this node. As linked lists uses circular references this is necessary.

DEMOLISH

Run when the node goes out of scope. Just keeps track of how many nodes have been allocated/deallocated.

DIAGNOSTICS ^

CONFIGURATION AND ENVIRONMENT ^

This module requires no configuration file or environment variables.

DEPENDENCIES ^

INCOMPATIBILITIES ^

None known.

BUGS AND LIMITATIONS ^

No bugs have been reported.

Please report any bugs or feature requests to C<bug-getopt-ll@rt.cpan.org>, or through the web interface at L<http://rt.cpan.org>.

SEE ALSO ^

Getopt::LL::DLList

Getopt::LL

AUTHOR ^

Ask Solem, C<< ask@0x61736b.net >>.

LICENSE AND COPYRIGHT ^

Copyright (c), 2007 Ask Solem C<< ask@0x61736b.net >>.

All rights reserved.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.6 or, at your option, any later version of Perl 5 you may have available.

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENSE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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