Clone - recursively copy Perl datatypes

<!DOCTYPE html> <html lang="en-US"> <head> <title>Clone - recursively copy Perl datatypes - metacpan.org</title> <link rel="preload" as="fetch" href="/account/login_status" crossorigin="anonymous" /> <link href="/assets/style-XFEQ536G.css" rel="stylesheet" type="text/css"> <script src="/assets/main-WXBSEDQJ.js" type="module"></script> <link rel="alternate" type="application/rss+xml" title="Recent CPAN Uploads of Clone - MetaCPAN" href="/dist/Clone/releases.rss" /> <link rel="canonical" href="https://metacpan.org/pod/Clone" /> <meta name="description" content="recursively copy Perl datatypes" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5"> <link rel="shortcut icon" href="/static/icons/favicon.ico"> <link rel="apple-touch-icon" sizes="152x152" href="/static/icons/apple-touch-icon.png"> <link rel="search" href="/static/opensearch.xml" type="application/opensearchdescription+xml" title="MetaCPAN"> <script async 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href="/dist/Clone">Clone</a> </li> <li> Module version: 0.47 </li> <li> <a data-keyboard-shortcut="g s" href="/dist/Clone/source/Clone.pm">Source</a> (<a href="/dist/Clone/source/Clone.pm?raw=1">raw</a>) </li> <li> <a data-keyboard-shortcut="g b" href="/dist/Clone/source">Browse</a> (<a href="/dist/Clone/source?raw=1">raw</a>) </li> <li> <a data-keyboard-shortcut="g c" href="/dist/Clone/changes">Changes</a> </li> <li> <a class="nopopup" href="/dist/Clone/contribute">How to Contribute</a> </li> <li> <a rel="noopener nofollow" data-keyboard-shortcut="g r" href="https://github.com/garu/Clone">Repository</a> </li> <li> <a rel="noopener nofollow" data-keyboard-shortcut="g i" href="https://github.com/garu/Clone/issues">Issues</a> (12) </li> <li> <a rel="noopener nofollow" href="http://matrix.cpantesters.org/?dist=Clone+0.47" title="Matrix">Testers</a> <span title="(pass / fail / na)">(<a rel="noopener nofollow" href="https://www.cpantesters.org/distro/C/Clone.html?oncpan=1&distmat=1&version=0.47&grade=2" style="color: #090">1490</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/C/Clone.html?oncpan=1&distmat=1&version=0.47&grade=3" style="color: #900">0</a> / <a rel="noopener nofollow" href="https://www.cpantesters.org/distro/C/Clone.html?oncpan=1&distmat=1&version=0.47&grade=4">0</a>)</span> </li> <li> <a rel="noopener nofollow" href="http://cpants.cpanauthors.org/release/ATOOMIC/Clone-0.47">Kwalitee</a> </li> <li> <div class="ttip" data-toggle="tooltip" data-placement="bottom" title="The # people with an indexing permission on Clone who have released something to CPAN in the last 2 years (i.e. the # people likely able to release critical fixes in a timely manner)"> Bus factor: 2 </div> </li> <li> License: perl_5 </li> <li class="nav-header">Activity</li> <li> <div class="activity-graph"> <img src="/dist/Clone/activity.svg?res=month" /> <div class="comment">24 month</div> </div> </li> <li class="nav-header">Tools</li> <li> <a itemprop="downloadUrl" href="https://cpan.metacpan.org/authors/id/A/AT/ATOOMIC/Clone-0.47.tar.gz"> Download (<span itemprop="fileSize">135.82KB</span>)</a> </li> <li> <a href="https://explorer.metacpan.org/?url=%2Fmodule%2FATOOMIC%2FClone-0.47%2FClone.pm"> MetaCPAN Explorer </a> </li> <li> <a href="/dist/Clone/permissions"> Permissions </a> </li> <li> <a href="/dist/Clone/releases.rss"> Subscribe to distribution </a> </li> <li> <button class="btn btn-link" data-toggle="modal" data-target="#metacpan_install-instructions-dialog"> Install Instructions </button> </li> <li> <form action="/search"> <input type="hidden" name="q" value="dist:Clone"> <input type="search" name="q" placeholder="Search distribution" class="form-control tool-bar-form"> <input type="submit" style="display: none"> </form> </li> <li> <form action="https://grep.metacpan.org/search"> <input type="hidden" name="qd" value="Clone"> <input type="hidden" name="source" value="metacpan"> <input type="search" name="q" placeholder="grep distribution" class="form-control tool-bar-form"> <input type="submit" style="display: none"> </form> </li> <li class="version-jump"> <select class="select-navigator form-control tool-bar-form"> <option disabled selected>Jump to version</option> <option disabled value="/release/ATOOMIC/Clone-0.47/view/Clone.pm" >0.47 (ATOOMIC on 2024-08-17)</option> <option value="/release/GARU/Clone-0.46/view/Clone.pm" >0.46 (GARU on 2022-10-19)</option> <option value="/release/ATOOMIC/Clone-0.45/view/Clone.pm" >0.45 (ATOOMIC on 2020-04-23)</option> <option value="/release/ATOOMIC/Clone-0.44/view/Clone.pm" >0.44 (ATOOMIC on 2020-04-20)</option> <option value="/release/ATOOMIC/Clone-0.43/view/Clone.pm" >0.43 (ATOOMIC on 2019-07-29)</option> <option value="/release/RDF/Clone-0.31/view/Clone.pm" >0.31 (RDF on 2009-01-20)</option> <option value="/release/RDF/Clone-0.30/view/Clone.pm" >0.30 (RDF on 2008-12-12)</option> <option value="/release/RDF/Clone-0.29/view/Clone.pm" >0.29 (RDF on 2008-07-12)</option> <option value="/release/RDF/Clone-0.28/view/Clone.pm" >0.28 (RDF on 2007-10-15)</option> <option value="/release/RDF/Clone-0.27/view/Clone.pm" >0.27 (RDF on 2007-07-25)</option> <option value="/release/RDF/Clone-0.25/view/Clone.pm" >0.25 (RDF on 2007-07-19)</option> <option value="/release/RDF/Clone-0.24/view/Clone.pm" >0.24 (RDF on 2007-07-13)</option> <option value="/release/RDF/Clone-0.23/view/Clone.pm" >0.23 (RDF on 2007-04-20)</option> <option value="/release/RDF/Clone-0.22/view/Clone.pm" >0.22 (RDF on 2006-10-08)</option> <option value="/release/RDF/Clone-0.20/view/Clone.pm" >0.20 (RDF on 2006-03-08)</option> <option value="/release/RDF/Clone-0.19/view/Clone.pm" >0.19 (RDF on 2006-03-06)</option> <option value="/release/RDF/Clone-0.18/view/Clone.pm" >0.18 (RDF on 2005-05-23)</option> <option value="/release/RDF/Clone-0.17/view/Clone.pm" >0.17 (RDF on 2005-05-05)</option> <option value="/release/RDF/Clone-0.16/view/Clone.pm" >0.16 (RDF on 2005-04-20)</option> <option value="/release/RDF/Clone-0.15/view/Clone.pm" >0.15 (RDF on 2003-09-07)</option> <option value="/release/RDF/Clone-0.14/view/Clone.pm" >0.14 (RDF on 2003-09-07)</option> <option value="/release/RDF/Clone-0.13/view/Clone.pm" >0.13 (RDF on 2002-02-03)</option> <option value="/release/RDF/Clone-0.12/view/Clone.pm" >0.12 (RDF on 2001-10-04)</option> <option value="/release/RDF/Clone-0.10/view/Clone.pm" >0.10 (RDF on 2001-04-29)</option> <option value="/release/RDF/Clone-0.09/view/Clone.pm" >0.09 (RDF on 2000-08-22)</option> <option value="/release/RDF/Clone-0.08/view/Clone.pm" >0.08 (RDF on 2000-08-11)</option> <option value="/release/RDF/Clone-0.07/view/Clone.pm" >0.07 (RDF on 2000-08-01)</option> <option value="/release/RDF/Clone-0.06/view/Clone.pm" >0.06 (RDF on 2000-05-24)</option> <optgroup label="BackPAN">' <option value="/release/GARU/Clone-0.42/view/Clone.pm" >0.42 (GARU on 2019-07-19)</option> <option value="/release/GARU/Clone-0.41/view/Clone.pm" >0.41 (GARU on 2018-10-25)</option> <option value="/release/GARU/Clone-0.40/view/Clone.pm" >0.40 (GARU on 2018-10-23)</option> <option value="/release/GARU/Clone-0.39/view/Clone.pm" >0.39 (GARU on 2017-04-07)</option> <option value="/release/GARU/Clone-0.38/view/Clone.pm" >0.38 (GARU on 2015-01-18)</option> <option value="/release/GARU/Clone-0.37/view/Clone.pm" >0.37 (GARU on 2014-05-15)</option> <option value="/release/GARU/Clone-0.36/view/Clone.pm" >0.36 (GARU on 2013-12-07)</option> <option value="/release/GARU/Clone-0.35/view/Clone.pm" >0.35 (GARU on 2013-09-05)</option> <option value="/release/GARU/Clone-0.34/view/Clone.pm" >0.34 (GARU on 2012-12-09)</option> <option value="/release/GARU/Clone-0.33/view/Clone.pm" >0.33 (GARU on 2012-11-24)</option> <option value="/release/GARU/Clone-0.32/view/Clone.pm" >0.32 (GARU on 2012-11-22)</option> <option value="/release/RDF/Clone-0.21/view/Clone.pm" >0.21 (RDF on 2006-10-08)</option> </optgroup> </select> </li> <li class="version-diff"> <select class="select-navigator form-control tool-bar-form"> <option disabled selected>Diff with version</option> <option disabled value="/release/ATOOMIC/Clone-0.47/diff/ATOOMIC/Clone-0.47/Clone.pm" >0.47 (ATOOMIC on 2024-08-17)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.46/Clone.pm" >0.46 (GARU on 2022-10-19)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/ATOOMIC/Clone-0.45/Clone.pm" >0.45 (ATOOMIC on 2020-04-23)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/ATOOMIC/Clone-0.44/Clone.pm" >0.44 (ATOOMIC on 2020-04-20)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/ATOOMIC/Clone-0.43/Clone.pm" >0.43 (ATOOMIC on 2019-07-29)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.31/Clone.pm" >0.31 (RDF on 2009-01-20)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.30/Clone.pm" >0.30 (RDF on 2008-12-12)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.29/Clone.pm" >0.29 (RDF on 2008-07-12)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.28/Clone.pm" >0.28 (RDF on 2007-10-15)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.27/Clone.pm" >0.27 (RDF on 2007-07-25)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.25/Clone.pm" >0.25 (RDF on 2007-07-19)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.24/Clone.pm" >0.24 (RDF on 2007-07-13)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.23/Clone.pm" >0.23 (RDF on 2007-04-20)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.22/Clone.pm" >0.22 (RDF on 2006-10-08)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.20/Clone.pm" >0.20 (RDF on 2006-03-08)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.19/Clone.pm" >0.19 (RDF on 2006-03-06)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.18/Clone.pm" >0.18 (RDF on 2005-05-23)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.17/Clone.pm" >0.17 (RDF on 2005-05-05)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.16/Clone.pm" >0.16 (RDF on 2005-04-20)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.15/Clone.pm" >0.15 (RDF on 2003-09-07)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.14/Clone.pm" >0.14 (RDF on 2003-09-07)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.13/Clone.pm" >0.13 (RDF on 2002-02-03)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.12/Clone.pm" >0.12 (RDF on 2001-10-04)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.10/Clone.pm" >0.10 (RDF on 2001-04-29)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.09/Clone.pm" >0.09 (RDF on 2000-08-22)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.08/Clone.pm" >0.08 (RDF on 2000-08-11)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.07/Clone.pm" >0.07 (RDF on 2000-08-01)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.06/Clone.pm" >0.06 (RDF on 2000-05-24)</option> <optgroup label="BackPAN">' <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.42/Clone.pm" >0.42 (GARU on 2019-07-19)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.41/Clone.pm" >0.41 (GARU on 2018-10-25)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.40/Clone.pm" >0.40 (GARU on 2018-10-23)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.39/Clone.pm" >0.39 (GARU on 2017-04-07)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.38/Clone.pm" >0.38 (GARU on 2015-01-18)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.37/Clone.pm" >0.37 (GARU on 2014-05-15)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.36/Clone.pm" >0.36 (GARU on 2013-12-07)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.35/Clone.pm" >0.35 (GARU on 2013-09-05)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.34/Clone.pm" >0.34 (GARU on 2012-12-09)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.33/Clone.pm" >0.33 (GARU on 2012-11-24)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/GARU/Clone-0.32/Clone.pm" >0.32 (GARU on 2012-11-22)</option> <option value="/release/ATOOMIC/Clone-0.47/diff/RDF/Clone-0.21/Clone.pm" >0.21 (RDF on 2006-10-08)</option> </optgroup> </select> </li> <li> <ul class="dependencies"> <li class="nav-header">Dependencies</li> <li><i class="ttip" title="dynamic_config enabled">unknown</i></li> <li> <hr> </li> <li> <a href="/module/Clone/requires">Reverse dependencies</a> </li> <li> <a href="http://deps.cpantesters.org/?module=Clone">CPAN Testers List</a> </li> <li> <a href="https://cpandeps.grinnz.com/?dist=Clone">Dependency graph</a> </li> </ul> </li> <li class="nav-header">Permalinks</li> <li> <a href="/release/ATOOMIC/Clone-0.47/view/Clone.pm">This version</a> </li> <li> <a href="/pod/Clone">Latest version</a> </li> <li> <div class="plussers"> <div class="nav-header">++ed by:</div> <div> <a class="display-all" href="/author/GARU"><img src="https://www.gravatar.com/avatar/14c751a7de307f3f50a2cb67b38a6796?d=identicon&s=20" title="GARU" alt="GARU"></a> <a class="display-all" href="/author/BRTASTIC"><img src="https://www.gravatar.com/avatar/ee4e20f351921e70f1985c5623e709e5?d=identicon&s=20" title="BRTASTIC" alt="BRTASTIC"></a> <a class="display-all" href="/author/AZAWAWI"><img src="https://www.gravatar.com/avatar/70ebafdecf974e15bcaba4cbe39efef1?d=identicon&s=20" title="AZAWAWI" alt="AZAWAWI"></a> <a class="display-all" href="/author/KES"><img src="https://www.gravatar.com/avatar/e8530f00b43b4f6a056f8ad4ee52ea47?d=identicon&s=20" title="KES" alt="KES"></a> <a class="display-all" href="/author/HANNIBAL"><img src="https://www.gravatar.com/avatar/325c153e70a65543b9496e0ad7cdca29?d=identicon&s=20" title="HANNIBAL" alt="HANNIBAL"></a> </div>  <div> <a href="/dist/Clone/plussers">19 PAUSE users</a> </div> <div> 12 non-PAUSE users </div> </div> </li> <li> <div> <button class="contributors-show-button btn-link">and 1 contributors</button> <div id="metacpan_contributors" class="slide-out slide-out-hidden"> <div> <ul> <li class="contributor" data-cpan-author="RDF" data-contrib-email="rdf@cpan.org" > <a href="/author/RDF" class="cpan-author"> <img class="gravatar" width="20" height="20" src="https://www.gravatar.com/avatar/296ea554ac072cd9c93413c5505ae3db?d=identicon&s=20" /> Ray Finch </a> </li> </ul> </div> </div> </div> </li> </ul> </div> </nav> <div class="content-navigation"> <div class="breadcrumbs"> <span> <a data-keyboard-shortcut="g a" rel="author" href="/author/ATOOMIC" class="author-name">ℕicolas ℝ.</a> </span> <span> / </span> <div class="release dist-release status-latest maturity-released"> <span class="dropdown"><b class="caret"></b></span> <select class="select-navigator "> <option selected value="/release/ATOOMIC/Clone-0.47/view/Clone.pm" >0.47 (ATOOMIC on 2024-08-17)</option> <option value="/release/GARU/Clone-0.46/view/Clone.pm" >0.46 (GARU on 2022-10-19)</option> <option value="/release/ATOOMIC/Clone-0.45/view/Clone.pm" >0.45 (ATOOMIC on 2020-04-23)</option> <option value="/release/ATOOMIC/Clone-0.44/view/Clone.pm" >0.44 (ATOOMIC on 2020-04-20)</option> <option value="/release/ATOOMIC/Clone-0.43/view/Clone.pm" >0.43 (ATOOMIC on 2019-07-29)</option> <option value="/release/RDF/Clone-0.31/view/Clone.pm" >0.31 (RDF on 2009-01-20)</option> <option value="/release/RDF/Clone-0.30/view/Clone.pm" >0.30 (RDF on 2008-12-12)</option> <option value="/release/RDF/Clone-0.29/view/Clone.pm" >0.29 (RDF on 2008-07-12)</option> <option value="/release/RDF/Clone-0.28/view/Clone.pm" >0.28 (RDF on 2007-10-15)</option> <option value="/release/RDF/Clone-0.27/view/Clone.pm" >0.27 (RDF on 2007-07-25)</option> <option value="/release/RDF/Clone-0.25/view/Clone.pm" >0.25 (RDF on 2007-07-19)</option> <option value="/release/RDF/Clone-0.24/view/Clone.pm" >0.24 (RDF on 2007-07-13)</option> <option value="/release/RDF/Clone-0.23/view/Clone.pm" >0.23 (RDF on 2007-04-20)</option> <option value="/release/RDF/Clone-0.22/view/Clone.pm" >0.22 (RDF on 2006-10-08)</option> <option value="/release/RDF/Clone-0.20/view/Clone.pm" >0.20 (RDF on 2006-03-08)</option> <option value="/release/RDF/Clone-0.19/view/Clone.pm" >0.19 (RDF on 2006-03-06)</option> <option value="/release/RDF/Clone-0.18/view/Clone.pm" >0.18 (RDF on 2005-05-23)</option> <option value="/release/RDF/Clone-0.17/view/Clone.pm" >0.17 (RDF on 2005-05-05)</option> <option value="/release/RDF/Clone-0.16/view/Clone.pm" >0.16 (RDF on 2005-04-20)</option> <option value="/release/RDF/Clone-0.15/view/Clone.pm" >0.15 (RDF on 2003-09-07)</option> <option value="/release/RDF/Clone-0.14/view/Clone.pm" >0.14 (RDF on 2003-09-07)</option> <option value="/release/RDF/Clone-0.13/view/Clone.pm" >0.13 (RDF on 2002-02-03)</option> <option value="/release/RDF/Clone-0.12/view/Clone.pm" >0.12 (RDF on 2001-10-04)</option> <option value="/release/RDF/Clone-0.10/view/Clone.pm" >0.10 (RDF on 2001-04-29)</option> <option value="/release/RDF/Clone-0.09/view/Clone.pm" >0.09 (RDF on 2000-08-22)</option> <option value="/release/RDF/Clone-0.08/view/Clone.pm" >0.08 (RDF on 2000-08-11)</option> <option value="/release/RDF/Clone-0.07/view/Clone.pm" >0.07 (RDF on 2000-08-01)</option> <option value="/release/RDF/Clone-0.06/view/Clone.pm" >0.06 (RDF on 2000-05-24)</option> <optgroup label="BackPAN">' <option value="/release/GARU/Clone-0.42/view/Clone.pm" >0.42 (GARU on 2019-07-19)</option> <option value="/release/GARU/Clone-0.41/view/Clone.pm" >0.41 (GARU on 2018-10-25)</option> <option value="/release/GARU/Clone-0.40/view/Clone.pm" >0.40 (GARU on 2018-10-23)</option> <option value="/release/GARU/Clone-0.39/view/Clone.pm" >0.39 (GARU on 2017-04-07)</option> <option value="/release/GARU/Clone-0.38/view/Clone.pm" >0.38 (GARU on 2015-01-18)</option> <option value="/release/GARU/Clone-0.37/view/Clone.pm" >0.37 (GARU on 2014-05-15)</option> <option value="/release/GARU/Clone-0.36/view/Clone.pm" >0.36 (GARU on 2013-12-07)</option> <option value="/release/GARU/Clone-0.35/view/Clone.pm" >0.35 (GARU on 2013-09-05)</option> <option value="/release/GARU/Clone-0.34/view/Clone.pm" >0.34 (GARU on 2012-12-09)</option> <option value="/release/GARU/Clone-0.33/view/Clone.pm" >0.33 (GARU on 2012-11-24)</option> <option value="/release/GARU/Clone-0.32/view/Clone.pm" >0.32 (GARU on 2012-11-22)</option> <option value="/release/RDF/Clone-0.21/view/Clone.pm" >0.21 (RDF on 2006-10-08)</option> </optgroup> </select> <a data-keyboard-shortcut="g d" class="release-name" href="/dist/Clone">Clone-0.47</a> </div> <span class="river-gauge-gauge"> <svg width="24px" height="15px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <title> River stage five 
 • 319 direct dependents 
 • 11140 total dependents </title> <rect x="0" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="5" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="10" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="15" y="0" width="4" height="15" fill="#7ea3f2" /> <rect x="20" y="0" width="4" height="15" fill="#7ea3f2" /> </g> </svg> </span> <div id="Clone-fav" class="show-logged-in"> <form action="/account/favorite/add" style="display: inline" method="POST"> <input type="hidden" name="remove" value="0"> <input type="hidden" name="release" value="Clone-0.47"> <input type="hidden" name="author" value="ATOOMIC"> <input type="hidden" name="distribution" value="Clone"> <button type="submit" class="favorite highlight"><span>31</span> ++</button> </form> </div> <div class="show-logged-out"> <button class="fav-not-logged-in favorite highlight"><span>31</span> ++</button> </div> / <span>Clone</span> </div> </div> <main class="content"> <nav class="toc"> <div class="toc-header"><strong>Contents</strong></div> <ul> <li><a href="#NAME">NAME</a></li> <li><a href="#SYNOPSIS">SYNOPSIS</a></li> <li><a href="#DESCRIPTION">DESCRIPTION</a></li> <li><a href="#SEE-ALSO">SEE ALSO</a></li> <li><a href="#COPYRIGHT">COPYRIGHT</a></li> <li><a href="#AUTHOR">AUTHOR</a></li> </ul></nav> <div class="pod anchors"> <h1 id="NAME">NAME</h1> <p>Clone - recursively copy Perl datatypes</p> <a href="https://travis-ci.org/garu/Clone"><img alt="Build Status" src="https://travis-ci.org/garu/Clone.png?branch=master" /></a> <a href="https://coveralls.io/r/garu/Clone?branch=master"><img alt="Coverage Status" src="https://coveralls.io/repos/garu/Clone/badge.png?branch=master" /></a> <a href="https://metacpan.org/pod/Clone"><img alt="CPAN version" src="https://badge.fury.io/pl/Clone.svg" /></a> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code>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'</code></pre> <p>You can also add it to your class:</p> <pre><code>package Foo; use parent 'Clone'; sub new { bless {}, shift } package main; my $obj = Foo->new; my $copy = $obj->clone;</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</h1> <p>This module provides a <code>clone()</code> method which makes recursive copies of nested hash, array, scalar and reference types, including tied variables and objects.</p> <p><code>clone()</code> takes a scalar argument and duplicates it. To duplicate lists, arrays or hashes, pass them in by reference, e.g.</p> <pre><code>my $copy = clone (\@array); # or my %copy = %{ clone (\%hash) };</code></pre> <h1 id="SEE-ALSO"><a id="SEE"></a>SEE ALSO</h1> <p><a href="/pod/Storable">Storable</a>'s <code>dclone()</code> 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 <code>dclone()</code> can be faster for structures 4 or more levels deep.</p> <h1 id="COPYRIGHT">COPYRIGHT</h1> <p>Copyright 2001-2022 Ray Finch. All Rights Reserved.</p> <p>This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.</p> <h1 id="AUTHOR">AUTHOR</h1> <p>Ray Finch <code><rdf@cpan.org></code></p> <p>Breno G. de Oliveira <code><garu@cpan.org></code>, Nicolas Rochelemagne <code><atoomic@cpan.org></code> and Florian Ragwitz <code><rafl@debian.org></code> perform routine maintenance releases since 2012.</p></div> <div id="metacpan_install-instructions-dialog" class="modal fade"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button> <h4 class="modal-title">Module Install Instructions</h4> </div> <div class="modal-body"> <p>To install Clone, copy and paste the appropriate command in to your terminal.</p> <p><a href="/dist/App-cpanminus/view/bin/cpanm">cpanm</a></p> <pre><code>cpanm Clone</code></pre> <p><a href="/pod/CPAN">CPAN shell</a></p> <pre><code>perl -MCPAN -e shell install Clone</code></pre> <p>For more information on module installation, please visit <a href="https://www.cpan.org/modules/INSTALL.html">the detailed CPAN module installation guide</a>.</p> </div> <div class="modal-footer"> <a href="#" data-dismiss="modal" class="btn">Close</a> </div> </div> </div> </div> </main> <div class="content-pagination"> </div> </div> <footer class="footer"> <div class="footer-container"> <div class="footer-social"> <div class="footer-link footer-logo"> <a href="/"> <img src="/static/images/metacpan-logo.svg" alt="MetaCPAN" /> </a> </div> <a class="footer-social-link" href="https://github.com/metacpan"> <i class="fab fa-github-square"></i> </a> <a class="footer-social-link" href="https://fosstodon.org/@metacpan"> <i class="fab fa-mastodon"></i> </a> </div> <div class="footer-links"> <div class="footer-link"> <a href="/about">About</a> </div> <div class="footer-link"> <a href="/about/sponsors">Sponsor</a> </div> <div class="footer-link"> <a 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Clone - recursively copy Perl datatypes - metacpan.org