<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: std::shared_ptr< _Tp > Class Template Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('a06848.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#pub-types">Public Types</a> | <a href="#pub-methods">Public Member Functions</a> | <a href="#friends">Friends</a> | <a href="a06845.html">List of all members</a> </div> <div class="headertitle"> <div class="title">std::shared_ptr< _Tp > Class Template Reference<div class="ingroups"><a class="el" href="a01477.html">Utilities</a> » <a class="el" href="a01471.html">Memory</a> » <a class="el" href="a01472.html">Pointer Abstractions</a></div></div> </div> </div><!--header--> <div class="contents"> <p>Inherits std::__shared_ptr< _Tp, _Lp >.</p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a> Public Types</h2></td></tr> <tr class="memitem:a0ae1e5a58059d8174de6d5a131ad6963"><td class="memItemLeft" align="right" valign="top"><a id="a0ae1e5a58059d8174de6d5a131ad6963"></a> using </td><td class="memItemRight" valign="bottom"><b>element_type</b> = typename __shared_ptr< _Tp >::element_type</td></tr> <tr class="separator:a0ae1e5a58059d8174de6d5a131ad6963"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr class="memitem:a4497f1d5421073bd8c1ee305414c4e80"><td class="memItemLeft" align="right" valign="top">constexpr </td><td class="memItemRight" valign="bottom"><a class="el" href="a06848.html#a4497f1d5421073bd8c1ee305414c4e80">shared_ptr</a> () noexcept</td></tr> <tr class="separator:a4497f1d5421073bd8c1ee305414c4e80"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a4aa51bb3efd3e84d08d1649e5e242725"><td class="memItemLeft" align="right" valign="top"><a id="a4aa51bb3efd3e84d08d1649e5e242725"></a>  </td><td class="memItemRight" valign="bottom"><b>shared_ptr</b> (const <a class="el" href="a06848.html">shared_ptr</a> &) noexcept=default</td></tr> <tr class="separator:a4aa51bb3efd3e84d08d1649e5e242725"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a7752bdf2d4dc3f4f5719fd05f2d92089"><td class="memTemplParams" colspan="2">template<typename _Yp , typename = _Constructible<_Yp*>> </td></tr> <tr class="memitem:a7752bdf2d4dc3f4f5719fd05f2d92089"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a7752bdf2d4dc3f4f5719fd05f2d92089">shared_ptr</a> (_Yp *__p)</td></tr> <tr class="separator:a7752bdf2d4dc3f4f5719fd05f2d92089"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a8b115d3d42304820c9942ddeb58644ee"><td class="memTemplParams" colspan="2">template<typename _Yp , typename _Deleter , typename = _Constructible<_Yp*, _Deleter>> </td></tr> <tr class="memitem:a8b115d3d42304820c9942ddeb58644ee"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a8b115d3d42304820c9942ddeb58644ee">shared_ptr</a> (_Yp *__p, _Deleter __d)</td></tr> <tr class="separator:a8b115d3d42304820c9942ddeb58644ee"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a893642e27fcab50317ba7d91392c0871"><td class="memTemplParams" colspan="2">template<typename _Deleter > </td></tr> <tr class="memitem:a893642e27fcab50317ba7d91392c0871"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a893642e27fcab50317ba7d91392c0871">shared_ptr</a> (nullptr_t __p, _Deleter __d)</td></tr> <tr class="separator:a893642e27fcab50317ba7d91392c0871"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a2b1f604b01d6faf7ed627624968e76b8"><td class="memTemplParams" colspan="2">template<typename _Yp , typename _Deleter , typename _Alloc , typename = _Constructible<_Yp*, _Deleter, _Alloc>> </td></tr> <tr class="memitem:a2b1f604b01d6faf7ed627624968e76b8"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a2b1f604b01d6faf7ed627624968e76b8">shared_ptr</a> (_Yp *__p, _Deleter __d, _Alloc __a)</td></tr> <tr class="separator:a2b1f604b01d6faf7ed627624968e76b8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a124c2b4fe2cd0d7651eefd22ead8f2ec"><td class="memTemplParams" colspan="2">template<typename _Deleter , typename _Alloc > </td></tr> <tr class="memitem:a124c2b4fe2cd0d7651eefd22ead8f2ec"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a124c2b4fe2cd0d7651eefd22ead8f2ec">shared_ptr</a> (nullptr_t __p, _Deleter __d, _Alloc __a)</td></tr> <tr class="separator:a124c2b4fe2cd0d7651eefd22ead8f2ec"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a9c6e4362646c04f78bbaf043f90eb835"><td class="memTemplParams" colspan="2">template<typename _Yp > </td></tr> <tr class="memitem:a9c6e4362646c04f78bbaf043f90eb835"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a9c6e4362646c04f78bbaf043f90eb835">shared_ptr</a> (const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > &__r, element_type *__p) noexcept</td></tr> <tr class="separator:a9c6e4362646c04f78bbaf043f90eb835"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a1dad8483fa6f0d7507549bb8200c4de9"><td class="memTemplParams" colspan="2">template<typename _Yp , typename = _Constructible<const shared_ptr<_Yp>&>> </td></tr> <tr class="memitem:a1dad8483fa6f0d7507549bb8200c4de9"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a1dad8483fa6f0d7507549bb8200c4de9">shared_ptr</a> (const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > &__r) noexcept</td></tr> <tr class="separator:a1dad8483fa6f0d7507549bb8200c4de9"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a5bd9976c3d66cf2a62904ebaeeab76e6"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a06848.html#a5bd9976c3d66cf2a62904ebaeeab76e6">shared_ptr</a> (<a class="el" href="a06848.html">shared_ptr</a> &&__r) noexcept</td></tr> <tr class="separator:a5bd9976c3d66cf2a62904ebaeeab76e6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a21c103ae1494cc05477bd22ec5c284fc"><td class="memTemplParams" colspan="2">template<typename _Yp , typename = _Constructible<shared_ptr<_Yp>>> </td></tr> <tr class="memitem:a21c103ae1494cc05477bd22ec5c284fc"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#a21c103ae1494cc05477bd22ec5c284fc">shared_ptr</a> (<a class="el" href="a06848.html">shared_ptr</a>< _Yp > &&__r) noexcept</td></tr> <tr class="separator:a21c103ae1494cc05477bd22ec5c284fc"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aaab9ea5e4dc2ab2b17b5a25cd1b58cf3"><td class="memTemplParams" colspan="2">template<typename _Yp , typename = _Constructible<const weak_ptr<_Yp>&>> </td></tr> <tr class="memitem:aaab9ea5e4dc2ab2b17b5a25cd1b58cf3"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#aaab9ea5e4dc2ab2b17b5a25cd1b58cf3">shared_ptr</a> (const <a class="el" href="a06856.html">weak_ptr</a>< _Yp > &__r)</td></tr> <tr class="separator:aaab9ea5e4dc2ab2b17b5a25cd1b58cf3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a9a71f64b7595c9ac466b31e1562f7176"><td class="memTemplParams" colspan="2"><a id="a9a71f64b7595c9ac466b31e1562f7176"></a> template<typename _Yp , typename _Del , typename = _Constructible<unique_ptr<_Yp, _Del>>> </td></tr> <tr class="memitem:a9a71f64b7595c9ac466b31e1562f7176"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><b>shared_ptr</b> (<a class="el" href="a07964.html">unique_ptr</a>< _Yp, _Del > &&__r)</td></tr> <tr class="separator:a9a71f64b7595c9ac466b31e1562f7176"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ac924c816f979c01f5adc42407b2fac83"><td class="memItemLeft" align="right" valign="top">constexpr </td><td class="memItemRight" valign="bottom"><a class="el" href="a06848.html#ac924c816f979c01f5adc42407b2fac83">shared_ptr</a> (nullptr_t) noexcept</td></tr> <tr class="separator:ac924c816f979c01f5adc42407b2fac83"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a6157d1b200aad1e5b433c58b991b41c0"><td class="memTemplParams" colspan="2"><a id="a6157d1b200aad1e5b433c58b991b41c0"></a> template<typename _Tp1 , typename > </td></tr> <tr class="memitem:a6157d1b200aad1e5b433c58b991b41c0"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><b>shared_ptr</b> (<a class="el" href="a08452.html">std::auto_ptr</a>< _Tp1 > &&__r)</td></tr> <tr class="separator:a6157d1b200aad1e5b433c58b991b41c0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a4a3f9561086ec0b2a36ce82e98a9238c"><td class="memItemLeft" align="right" valign="top"><a id="a4a3f9561086ec0b2a36ce82e98a9238c"></a> element_type * </td><td class="memItemRight" valign="bottom"><b>get</b> () const noexcept</td></tr> <tr class="separator:a4a3f9561086ec0b2a36ce82e98a9238c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ab32c3f0547290d44b416d25464fae1e1"><td class="memItemLeft" align="right" valign="top"><a id="ab32c3f0547290d44b416d25464fae1e1"></a>  </td><td class="memItemRight" valign="bottom"><b>operator bool</b> () const</td></tr> <tr class="separator:ab32c3f0547290d44b416d25464fae1e1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a33244fcb592779824b994d442eb86974"><td class="memItemLeft" align="right" valign="top"><a id="a33244fcb592779824b994d442eb86974"></a> element_type & </td><td class="memItemRight" valign="bottom"><b>operator*</b> () const noexcept</td></tr> <tr class="separator:a33244fcb592779824b994d442eb86974"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a7f198afe08ccff667ad8ccd4d25365ca"><td class="memItemLeft" align="right" valign="top"><a id="a7f198afe08ccff667ad8ccd4d25365ca"></a> element_type * </td><td class="memItemRight" valign="bottom"><b>operator-></b> () const noexcept</td></tr> <tr class="separator:a7f198afe08ccff667ad8ccd4d25365ca"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a896f9bc2a09b1d2ffb748a0cf52a2117"><td class="memItemLeft" align="right" valign="top"><a id="a896f9bc2a09b1d2ffb748a0cf52a2117"></a> <a class="el" href="a06848.html">shared_ptr</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="a06848.html">shared_ptr</a> &) noexcept=default</td></tr> <tr class="separator:a896f9bc2a09b1d2ffb748a0cf52a2117"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a5f83f1b5aaa64ff507cfa5599eada096"><td class="memTemplParams" colspan="2"><a id="a5f83f1b5aaa64ff507cfa5599eada096"></a> template<typename _Yp > </td></tr> <tr class="memitem:a5f83f1b5aaa64ff507cfa5599eada096"><td class="memTemplItemLeft" align="right" valign="top">_Assignable< const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > & > </td><td class="memTemplItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > &__r) noexcept</td></tr> <tr class="separator:a5f83f1b5aaa64ff507cfa5599eada096"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a378103e738f050a252e05ca5b6374ea3"><td class="memItemLeft" align="right" valign="top"><a id="a378103e738f050a252e05ca5b6374ea3"></a> <a class="el" href="a06848.html">shared_ptr</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="a06848.html">shared_ptr</a> &&__r) noexcept</td></tr> <tr class="separator:a378103e738f050a252e05ca5b6374ea3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a2d4c5d7e5c056aae51731b8b9ed1f231"><td class="memTemplParams" colspan="2"><a id="a2d4c5d7e5c056aae51731b8b9ed1f231"></a> template<class _Yp > </td></tr> <tr class="memitem:a2d4c5d7e5c056aae51731b8b9ed1f231"><td class="memTemplItemLeft" align="right" valign="top">_Assignable< <a class="el" href="a06848.html">shared_ptr</a>< _Yp > > </td><td class="memTemplItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="a06848.html">shared_ptr</a>< _Yp > &&__r) noexcept</td></tr> <tr class="separator:a2d4c5d7e5c056aae51731b8b9ed1f231"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aee3a2989df26f01990a8ba76613ecec0"><td class="memTemplParams" colspan="2"><a id="aee3a2989df26f01990a8ba76613ecec0"></a> template<typename _Yp , typename _Del > </td></tr> <tr class="memitem:aee3a2989df26f01990a8ba76613ecec0"><td class="memTemplItemLeft" align="right" valign="top">_Assignable< <a class="el" href="a07964.html">unique_ptr</a>< _Yp, _Del > > </td><td class="memTemplItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="a07964.html">unique_ptr</a>< _Yp, _Del > &&__r)</td></tr> <tr class="separator:aee3a2989df26f01990a8ba76613ecec0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aeac4131cdeb4508cb3cc5e444025dd13"><td class="memTemplParams" colspan="2"><a id="aeac4131cdeb4508cb3cc5e444025dd13"></a> template<typename _Tp1 > </td></tr> <tr class="memitem:aeac4131cdeb4508cb3cc5e444025dd13"><td class="memTemplItemLeft" align="right" valign="top">bool </td><td class="memTemplItemRight" valign="bottom"><b>owner_before</b> (__shared_ptr< _Tp1, _Lp > const &__rhs) const noexcept</td></tr> <tr class="separator:aeac4131cdeb4508cb3cc5e444025dd13"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:aad0f29a64914eedc229d106af794b3d5"><td class="memTemplParams" colspan="2"><a id="aad0f29a64914eedc229d106af794b3d5"></a> template<typename _Tp1 > </td></tr> <tr class="memitem:aad0f29a64914eedc229d106af794b3d5"><td class="memTemplItemLeft" align="right" valign="top">bool </td><td class="memTemplItemRight" valign="bottom"><b>owner_before</b> (__weak_ptr< _Tp1, _Lp > const &__rhs) const noexcept</td></tr> <tr class="separator:aad0f29a64914eedc229d106af794b3d5"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:acc5c0c51442d7be23cd8aaff84d1a1be"><td class="memItemLeft" align="right" valign="top"><a id="acc5c0c51442d7be23cd8aaff84d1a1be"></a> void </td><td class="memItemRight" valign="bottom"><b>reset</b> () noexcept</td></tr> <tr class="separator:acc5c0c51442d7be23cd8aaff84d1a1be"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ac1ac94beb595729733528b6f4173b70f"><td class="memTemplParams" colspan="2"><a id="ac1ac94beb595729733528b6f4173b70f"></a> template<typename _Yp > </td></tr> <tr class="memitem:ac1ac94beb595729733528b6f4173b70f"><td class="memTemplItemLeft" align="right" valign="top">_SafeConv< _Yp > </td><td class="memTemplItemRight" valign="bottom"><b>reset</b> (_Yp *__p)</td></tr> <tr class="separator:ac1ac94beb595729733528b6f4173b70f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a669d92df05c072935636fc1d15d9bc55"><td class="memTemplParams" colspan="2"><a id="a669d92df05c072935636fc1d15d9bc55"></a> template<typename _Yp , typename _Deleter > </td></tr> <tr class="memitem:a669d92df05c072935636fc1d15d9bc55"><td class="memTemplItemLeft" align="right" valign="top">_SafeConv< _Yp > </td><td class="memTemplItemRight" valign="bottom"><b>reset</b> (_Yp *__p, _Deleter __d)</td></tr> <tr class="separator:a669d92df05c072935636fc1d15d9bc55"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a278a6f9a03de0af166d82b82a43ee00f"><td class="memTemplParams" colspan="2"><a id="a278a6f9a03de0af166d82b82a43ee00f"></a> template<typename _Yp , typename _Deleter , typename _Alloc > </td></tr> <tr class="memitem:a278a6f9a03de0af166d82b82a43ee00f"><td class="memTemplItemLeft" align="right" valign="top">_SafeConv< _Yp > </td><td class="memTemplItemRight" valign="bottom"><b>reset</b> (_Yp *__p, _Deleter __d, _Alloc __a)</td></tr> <tr class="separator:a278a6f9a03de0af166d82b82a43ee00f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a69d6c7a3a33b4eca455c5c494965ff8c"><td class="memItemLeft" align="right" valign="top"><a id="a69d6c7a3a33b4eca455c5c494965ff8c"></a> void </td><td class="memItemRight" valign="bottom"><b>swap</b> (__shared_ptr< _Tp, _Lp > &__other) noexcept</td></tr> <tr class="separator:a69d6c7a3a33b4eca455c5c494965ff8c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a4d71d01dac9b0673744589d54bc14c38"><td class="memItemLeft" align="right" valign="top"><a id="a4d71d01dac9b0673744589d54bc14c38"></a> bool </td><td class="memItemRight" valign="bottom"><b>unique</b> () const noexcept</td></tr> <tr class="separator:a4d71d01dac9b0673744589d54bc14c38"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a57878f89c6c01b2215fa8b451b62313b"><td class="memItemLeft" align="right" valign="top"><a id="a57878f89c6c01b2215fa8b451b62313b"></a> long </td><td class="memItemRight" valign="bottom"><b>use_count</b> () const noexcept</td></tr> <tr class="separator:a57878f89c6c01b2215fa8b451b62313b"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a> Friends</h2></td></tr> <tr class="memitem:aae3d23f345adfb0284614b4d1bfdd7b3"><td class="memTemplParams" colspan="2">template<typename _Yp , typename _Alloc , typename... _Args> </td></tr> <tr class="memitem:aae3d23f345adfb0284614b4d1bfdd7b3"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a06848.html">shared_ptr</a>< _Yp > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a06848.html#aae3d23f345adfb0284614b4d1bfdd7b3">allocate_shared</a> (const _Alloc &__a, _Args &&... __args)</td></tr> <tr class="separator:aae3d23f345adfb0284614b4d1bfdd7b3"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a5e1bc0d904f3a9244016847e7d0316e1"><td class="memItemLeft" align="right" valign="top"><a id="a5e1bc0d904f3a9244016847e7d0316e1"></a> class </td><td class="memItemRight" valign="bottom"><b>weak_ptr< _Tp ></b></td></tr> <tr class="separator:a5e1bc0d904f3a9244016847e7d0316e1"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><h3>template<typename _Tp><br /> class std::shared_ptr< _Tp ></h3> <p>A smart pointer with reference-counted copy semantics. </p> <p>The object pointed to is deleted when the last shared_ptr pointing to it is destroyed or reset. </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00103">103</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div><h2 class="groupheader">Constructor & Destructor Documentation</h2> <a id="a4497f1d5421073bd8c1ee305414c4e80"></a> <h2 class="memtitle"><span class="permalink"><a href="#a4497f1d5421073bd8c1ee305414c4e80">◆ </a></span>shared_ptr() <span class="overload">[1/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">constexpr <a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct an empty shared_ptr. </p> <dl class="section post"><dt>Postcondition</dt><dd>use_count()==0 && get()==0 </dd></dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00127">127</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a7752bdf2d4dc3f4f5719fd05f2d92089"></a> <h2 class="memtitle"><span class="permalink"><a href="#a7752bdf2d4dc3f4f5719fd05f2d92089">◆ </a></span>shared_ptr() <span class="overload">[2/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename = _Constructible<_Yp*>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">_Yp * </td> <td class="paramname"><em>__p</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">explicit</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct a shared_ptr that owns the pointer <em>__p</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__p</td><td>A pointer that is convertible to element_type*. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 1 && get() == __p </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">std::bad_alloc,in</td><td>which case <code>delete</code> <em>__p</em> is called. </td></tr> </table> </dd> </dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00139">139</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a8b115d3d42304820c9942ddeb58644ee"></a> <h2 class="memtitle"><span class="permalink"><a href="#a8b115d3d42304820c9942ddeb58644ee">◆ </a></span>shared_ptr() <span class="overload">[3/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename _Deleter , typename = _Constructible<_Yp*, _Deleter>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">_Yp * </td> <td class="paramname"><em>__p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Deleter </td> <td class="paramname"><em>__d</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct a shared_ptr that owns the pointer <em>__p</em> and the deleter <em>__d</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__p</td><td>A pointer. </td></tr> <tr><td class="paramname">__d</td><td>A deleter. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 1 && get() == __p </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">std::bad_alloc,in</td><td>which case <em>__d(__p)</em> is called.</td></tr> </table> </dd> </dl> <p>Requirements: _Deleter's copy constructor and destructor must not throw</p> <p>__shared_ptr will release __p by calling __d(__p) </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00156">156</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a893642e27fcab50317ba7d91392c0871"></a> <h2 class="memtitle"><span class="permalink"><a href="#a893642e27fcab50317ba7d91392c0871">◆ </a></span>shared_ptr() <span class="overload">[4/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Deleter > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">nullptr_t </td> <td class="paramname"><em>__p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Deleter </td> <td class="paramname"><em>__d</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct a shared_ptr that owns a null pointer and the deleter <em>__d</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__p</td><td>A null pointer constant. </td></tr> <tr><td class="paramname">__d</td><td>A deleter. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 1 && get() == __p </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">std::bad_alloc,in</td><td>which case <em>__d(__p)</em> is called.</td></tr> </table> </dd> </dl> <p>Requirements: _Deleter's copy constructor and destructor must not throw</p> <p>The last owner will call __d(__p) </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00173">173</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a2b1f604b01d6faf7ed627624968e76b8"></a> <h2 class="memtitle"><span class="permalink"><a href="#a2b1f604b01d6faf7ed627624968e76b8">◆ </a></span>shared_ptr() <span class="overload">[5/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename _Deleter , typename _Alloc , typename = _Constructible<_Yp*, _Deleter, _Alloc>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">_Yp * </td> <td class="paramname"><em>__p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Deleter </td> <td class="paramname"><em>__d</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Alloc </td> <td class="paramname"><em>__a</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct a shared_ptr that owns the pointer <em>__p</em> and the deleter <em>__d</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__p</td><td>A pointer. </td></tr> <tr><td class="paramname">__d</td><td>A deleter. </td></tr> <tr><td class="paramname">__a</td><td>An allocator. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 1 && get() == __p </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">std::bad_alloc,in</td><td>which case <em>__d(__p)</em> is called.</td></tr> </table> </dd> </dl> <p>Requirements: _Deleter's copy constructor and destructor must not throw _Alloc's copy constructor and destructor must not throw.</p> <p>__shared_ptr will release __p by calling __d(__p) </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00193">193</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a124c2b4fe2cd0d7651eefd22ead8f2ec"></a> <h2 class="memtitle"><span class="permalink"><a href="#a124c2b4fe2cd0d7651eefd22ead8f2ec">◆ </a></span>shared_ptr() <span class="overload">[6/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Deleter , typename _Alloc > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">nullptr_t </td> <td class="paramname"><em>__p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Deleter </td> <td class="paramname"><em>__d</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Alloc </td> <td class="paramname"><em>__a</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct a shared_ptr that owns a null pointer and the deleter <em>__d</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__p</td><td>A null pointer constant. </td></tr> <tr><td class="paramname">__d</td><td>A deleter. </td></tr> <tr><td class="paramname">__a</td><td>An allocator. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 1 && get() == __p </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">std::bad_alloc,in</td><td>which case <em>__d(__p)</em> is called.</td></tr> </table> </dd> </dl> <p>Requirements: _Deleter's copy constructor and destructor must not throw _Alloc's copy constructor and destructor must not throw.</p> <p>The last owner will call __d(__p) </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00212">212</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a9c6e4362646c04f78bbaf043f90eb835"></a> <h2 class="memtitle"><span class="permalink"><a href="#a9c6e4362646c04f78bbaf043f90eb835">◆ </a></span>shared_ptr() <span class="overload">[7/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > & </td> <td class="paramname"><em>__r</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">element_type * </td> <td class="paramname"><em>__p</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs a shared_ptr instance that stores <em>__p</em> and shares ownership with <em>__r</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__r</td><td>A shared_ptr. </td></tr> <tr><td class="paramname">__p</td><td>A pointer that will remain valid while <em>*__r</em> is valid. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>get() == __p && use_count() == __r.use_count()</dd></dl> <p>This can be used to construct a <code>shared_ptr</code> to a sub-object of an object managed by an existing <code>shared_ptr</code>.</p> <div class="fragment"><div class="line">shared_ptr< pair<int,int> > pii(<span class="keyword">new</span> pair<int,int>());</div><div class="line">shared_ptr<int> pi(pii, &pii->first);</div><div class="line">assert(pii.use_count() == 2);</div></div><!-- fragment --> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00234">234</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a1dad8483fa6f0d7507549bb8200c4de9"></a> <h2 class="memtitle"><span class="permalink"><a href="#a1dad8483fa6f0d7507549bb8200c4de9">◆ </a></span>shared_ptr() <span class="overload">[8/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename = _Constructible<const shared_ptr<_Yp>&>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">const <a class="el" href="a06848.html">shared_ptr</a>< _Yp > & </td> <td class="paramname"><em>__r</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>If <em>__r</em> is empty, constructs an empty shared_ptr; otherwise construct a shared_ptr that shares ownership with <em>__r</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__r</td><td>A shared_ptr. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>get() == __r.get() && use_count() == __r.use_count() </dd></dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00246">246</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a5bd9976c3d66cf2a62904ebaeeab76e6"></a> <h2 class="memtitle"><span class="permalink"><a href="#a5bd9976c3d66cf2a62904ebaeeab76e6">◆ </a></span>shared_ptr() <span class="overload">[9/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype"><a class="el" href="a06848.html">shared_ptr</a>< _Tp > && </td> <td class="paramname"><em>__r</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Move-constructs a shared_ptr instance from <em>__r</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__r</td><td>A shared_ptr rvalue. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>*this contains the old value of <em>__r</em>, <em>__r</em> is empty. </dd></dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00254">254</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="a21c103ae1494cc05477bd22ec5c284fc"></a> <h2 class="memtitle"><span class="permalink"><a href="#a21c103ae1494cc05477bd22ec5c284fc">◆ </a></span>shared_ptr() <span class="overload">[10/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename = _Constructible<shared_ptr<_Yp>>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype"><a class="el" href="a06848.html">shared_ptr</a>< _Yp > && </td> <td class="paramname"><em>__r</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Move-constructs a shared_ptr instance from <em>__r</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__r</td><td>A shared_ptr rvalue. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>*this contains the old value of <em>__r</em>, <em>__r</em> is empty. </dd></dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00263">263</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="aaab9ea5e4dc2ab2b17b5a25cd1b58cf3"></a> <h2 class="memtitle"><span class="permalink"><a href="#aaab9ea5e4dc2ab2b17b5a25cd1b58cf3">◆ </a></span>shared_ptr() <span class="overload">[11/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename = _Constructible<const weak_ptr<_Yp>&>> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">const <a class="el" href="a06856.html">weak_ptr</a>< _Yp > & </td> <td class="paramname"><em>__r</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">explicit</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Constructs a shared_ptr that shares ownership with <em>__r</em> and stores a copy of the pointer stored in <em>__r</em>. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__r</td><td>A weak_ptr. </td></tr> </table> </dd> </dl> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == __r.use_count() </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">bad_weak_ptr</td><td>when __r.expired(), in which case the constructor has no effect. </td></tr> </table> </dd> </dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00275">275</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <a id="ac924c816f979c01f5adc42407b2fac83"></a> <h2 class="memtitle"><span class="permalink"><a href="#ac924c816f979c01f5adc42407b2fac83">◆ </a></span>shared_ptr() <span class="overload">[12/12]</span></h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">constexpr <a class="el" href="a06848.html">std::shared_ptr</a>< _Tp >::<a class="el" href="a06848.html">shared_ptr</a> </td> <td>(</td> <td class="paramtype">nullptr_t </td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Construct an empty shared_ptr. </p> <dl class="section post"><dt>Postcondition</dt><dd>use_count() == 0 && get() == nullptr </dd></dl> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00307">307</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <h2 class="groupheader">Friends And Related Function Documentation</h2> <a id="aae3d23f345adfb0284614b4d1bfdd7b3"></a> <h2 class="memtitle"><span class="permalink"><a href="#aae3d23f345adfb0284614b4d1bfdd7b3">◆ </a></span>allocate_shared</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp> </div> <div class="memtemplate"> template<typename _Yp , typename _Alloc , typename... _Args> </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="a06848.html">shared_ptr</a><_Yp> allocate_shared </td> <td>(</td> <td class="paramtype">const _Alloc & </td> <td class="paramname"><em>__a</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">_Args &&... </td> <td class="paramname"><em>__args</em> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">friend</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Create an object that is owned by a shared_ptr. </p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">__a</td><td>An allocator. </td></tr> <tr><td class="paramname">__args</td><td>Arguments for the <em>_Tp</em> object's constructor. </td></tr> </table> </dd> </dl> <dl class="section return"><dt>Returns</dt><dd>A shared_ptr that owns the newly created object. </dd></dl> <dl class="exception"><dt>Exceptions</dt><dd> <table class="exception"> <tr><td class="paramname">An</td><td>exception thrown from <em>_Alloc::allocate</em> or from the constructor of <em>_Tp</em>.</td></tr> </table> </dd> </dl> <p>A copy of <em>__a</em> will be used to allocate memory for the shared_ptr and the new object. </p> <p class="definition">Definition at line <a class="el" href="a17109_source.html#l00703">703</a> of file <a class="el" href="a17109_source.html">bits/shared_ptr.h</a>.</p> </div> </div> <hr/>The documentation for this class was generated from the following files:<ul> <li><a class="el" href="a17109_source.html">bits/shared_ptr.h</a></li> <li><a class="el" href="a00719_source.html">auto_ptr.h</a></li> </ul> </div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="a01538.html">std</a></li><li class="navelem"><a class="el" href="a06848.html">shared_ptr</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.15 </li> </ul> </div> </body> </html>