Clone (3)
Leading comments
Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35) Standard preamble: ========================================================================
NAME
Clone - recursively copy Perl datatypesSYNOPSIS
use Clone 'clone'; my $data = { set => [ 1 .. 50 ], foo => { answer => 42, object => SomeObject->new, }, }; my $cloned_data = clone($data); $cloned_data->{foo}{answer} = 1; print $cloned_data->{foo}{answer}; # '1' print $data->{foo}{answer}; # '42'
You can also add it to your class:
package Foo; use parent 'Clone'; sub new { bless {}, shift } package main; my $obj = Foo->new; my $copy = $obj->clone;
DESCRIPTION
This module provides a "clone()" method which makes recursive copies of nested hash, array, scalar and reference types, including tied variables and objects."clone()" takes a scalar argument and duplicates it. To duplicate lists, arrays or hashes, pass them in by reference, e.g.
my $copy = clone (\@array); # or my %copy = %{ clone (\%hash) };
SEE ALSO
Storable's "dclone()" is a flexible solution for cloning variables, albeit slower for average-sized data structures. Simple and naive benchmarks show that Clone is faster for data structures with 3 or fewer levels, while "dclone()" can be faster for structures 4 or more levels deep.COPYRIGHT
Copyright 2001-2015 Ray Finch. All Rights Reserved.This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Ray Finch "<rdf@cpan.org>"Breno G. de Oliveira "<garu@cpan.org>" and Florian Ragwitz "<rafl@debian.org>" perform routine maintenance releases since 2012.