Clone

Clone(3)	     User Contributed Perl Documentation	     Clone(3)



NAME
       Clone - recursively copy Perl datatypes

SYNOPSIS
	 use Clone;

	 push @Foo::ISA, ’Clone’;

	 $a = new Foo;
	 $b = $a->clone();

	 # or

	 use Clone qw(clone);

	 $a = { ’foo’ => ’bar’, ’move’ => ’zig’ };
	 $b = [ ’alpha’, ’beta’, ’gamma’, ’vlissides’ ];
	 $c = new Foo();

	 $d = clone($a);
	 $e = clone($b);
	 $f = clone($c);

DESCRIPTION
       This module provides a clone() method which makes recursive copies of
       nested hash, array, scalar and reference types, including tied vari-
       ables and objects.

       clone() takes a scalar argument and an optional parameter that can be
       used to limit the depth of the copy. To duplicate lists, arrays or
       hashes, pass them in by reference. e.g.

	   my $copy = clone (\@array);

	   # or

	   my %copy = %{ clone (\%hash) };

       For a slower, but more flexible solution see Storable’s dclone().

AUTHOR
       Ray Finch, rdf@cpan.org

       Copyright 2001 Ray Finch.

       This module is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

SEE ALSO
       Storable(3).



perl v5.8.8			  2009-01-19			     Clone(3)