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127 .TH Clone 3 "2009-01-20" "perl v5.8.7" "User Contributed Perl Documentation"
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133 Clone \- recursively copy Perl datatypes
135 .IX Header "SYNOPSIS"
139 \& push @Foo::ISA, \*(AqClone\*(Aq;
142 \& $b = $a\->clone();
146 \& use Clone qw(clone);
148 \& $a = { \*(Aqfoo\*(Aq => \*(Aqbar\*(Aq, \*(Aqmove\*(Aq => \*(Aqzig\*(Aq };
149 \& $b = [ \*(Aqalpha\*(Aq, \*(Aqbeta\*(Aq, \*(Aqgamma\*(Aq, \*(Aqvlissides\*(Aq ];
157 .IX Header "DESCRIPTION"
158 This module provides a \fIclone()\fR method which makes recursive
159 copies of nested hash, array, scalar and reference types,
160 including tied variables and objects.
162 \&\fIclone()\fR takes a scalar argument and an optional parameter that
163 can be used to limit the depth of the copy. To duplicate lists,
164 arrays or hashes, pass them in by reference. e.g.
167 \& my $copy = clone (\e@array);
171 \& my %copy = %{ clone (\e%hash) };
174 For a slower, but more flexible solution see Storable's \fIdclone()\fR.
177 Ray Finch, rdf@cpan.org
179 Copyright 2001 Ray Finch.
181 This module is free software; you can redistribute it and/or
182 modify it under the same terms as Perl itself.
184 .IX Header "SEE ALSO"
185 \&\fIStorable\fR\|(3).