<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://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 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: future File 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"> $(document).ready(initResizable); </script> <link href="doxygen.css" rel="stylesheet" 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 </td><td class="memItemRight" valign="bottom"><a class="el" href="a02685.html">std::__future_base::_Result< _Res ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02741.html">std::__future_base::_Result< _Res & ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02745.html">std::__future_base::_Result< void ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02689.html">std::__future_base::_Result_alloc< _Res, _Alloc ></a></td></tr> <tr 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valign="bottom"><a class="el" href="a02765.html">std::future< _Res & ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02769.html">std::future< void ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02653.html">std::future_error</a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02649.html">std::is_error_code_enum< future_errc ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02821.html">std::packaged_task< _Res(_ArgTypes...)></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02669.html">std::promise< _Res ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02669.html">std::promise< _Res ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02785.html">std::promise< _Res & ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02789.html">std::promise< void ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02661.html">std::shared_future< _Res ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02661.html">std::shared_future< _Res ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02773.html">std::shared_future< _Res & ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="a02777.html">std::shared_future< void ></a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="namespaces"></a> Namespaces</h2></td></tr> <tr class="memitem:a01487"><td class="memItemLeft" align="right" valign="top">  </td><td class="memItemRight" valign="bottom"><a class="el" href="a01487.html">std</a></td></tr> <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a> Macros</h2></td></tr> <tr class="memitem:ae84f98a7f38b1239cdedcaf8ab464bcb"><td class="memItemLeft" align="right" valign="top"><a id="ae84f98a7f38b1239cdedcaf8ab464bcb"></a> #define </td><td class="memItemRight" valign="bottom"><b>_GLIBCXX_FUTURE</b></td></tr> <tr class="separator:ae84f98a7f38b1239cdedcaf8ab464bcb"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="enum-members"></a> Enumerations</h2></td></tr> <tr class="memitem:ga61938f7ac25df97b5362109e61bb46a6"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga61938f7ac25df97b5362109e61bb46a6">std::future_errc</a> { <b>future_already_retrieved</b>, <b>promise_already_satisfied</b>, <b>no_state</b>, <b>broken_promise</b> }</td></tr> <tr class="separator:ga61938f7ac25df97b5362109e61bb46a6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga528eb8f3b350394c0406d4d58ab7dbf4"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga528eb8f3b350394c0406d4d58ab7dbf4">std::future_status</a> { <b>ready</b>, <b>timeout</b>, <b>deferred</b> }</td></tr> <tr class="separator:ga528eb8f3b350394c0406d4d58ab7dbf4"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga6f4ad125d364f01560e2ed20a3c8bb5b"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga6f4ad125d364f01560e2ed20a3c8bb5b">std::launch</a> { <b>async</b>, <b>deferred</b> }</td></tr> <tr class="separator:ga6f4ad125d364f01560e2ed20a3c8bb5b"><td class="memSeparator" colspan="2"> </td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> <tr class="memitem:ga131dfb15d7f07dccce9dcb8c705a697c"><td class="memTemplParams" colspan="2"> template<typename _Signature , typename _Fn , typename _Alloc > </td></tr> <tr class="memitem:ga131dfb15d7f07dccce9dcb8c705a697c"><td class="memTemplItemLeft" align="right" valign="top">static shared_ptr< __future_base::_Task_state_base< _Signature > > </td><td class="memTemplItemRight" valign="bottom"><b>std::__create_task_state</b> (_Fn &&__fn, const _Alloc &__a)</td></tr> <tr class="separator:ga131dfb15d7f07dccce9dcb8c705a697c"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gaf7482f7f4d6cf09277f3ffe60c8933df"><td class="memTemplParams" colspan="2">template<typename _Fn , typename... _Args> </td></tr> <tr class="memitem:gaf7482f7f4d6cf09277f3ffe60c8933df"><td class="memTemplItemLeft" align="right" valign="top">future< typename result_of< _Fn(_Args...)>::type > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01422.html#gaf7482f7f4d6cf09277f3ffe60c8933df">std::async</a> (launch __policy, _Fn &&__fn, _Args &&... __args)</td></tr> <tr class="separator:gaf7482f7f4d6cf09277f3ffe60c8933df"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga11692e07ba6d6016e5ea02a78403df36"><td class="memTemplParams" colspan="2">template<typename _Fn , typename... _Args> </td></tr> <tr class="memitem:ga11692e07ba6d6016e5ea02a78403df36"><td class="memTemplItemLeft" align="right" valign="top">future< typename result_of< _Fn(_Args...)>::type > </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01422.html#ga11692e07ba6d6016e5ea02a78403df36">std::async</a> (_Fn &&__fn, _Args &&... __args)</td></tr> <tr class="separator:ga11692e07ba6d6016e5ea02a78403df36"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga5b4abfa468beb197d5bdac89e20afdb0"><td class="memItemLeft" align="right" valign="top">const error_category & </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga5b4abfa468beb197d5bdac89e20afdb0">std::future_category</a> () noexcept</td></tr> <tr class="separator:ga5b4abfa468beb197d5bdac89e20afdb0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga32bbe57d8ae969ac5cee4f0c48c3e63f"><td class="memItemLeft" align="right" valign="top">error_code </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga32bbe57d8ae969ac5cee4f0c48c3e63f">std::make_error_code</a> (future_errc __errc) noexcept</td></tr> <tr class="separator:ga32bbe57d8ae969ac5cee4f0c48c3e63f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga298f6b4607ddc74c173e6f8887f72047"><td class="memItemLeft" align="right" valign="top">error_condition </td><td class="memItemRight" valign="bottom"><a class="el" href="a01422.html#ga298f6b4607ddc74c173e6f8887f72047">std::make_error_condition</a> (future_errc __errc) noexcept</td></tr> <tr class="separator:ga298f6b4607ddc74c173e6f8887f72047"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:gacc493c5b9032015239c46db3673759d6"><td class="memItemLeft" align="right" valign="top"> constexpr launch </td><td class="memItemRight" valign="bottom"><b>std::operator &</b> (launch __x, launch __y)</td></tr> <tr class="separator:gacc493c5b9032015239c46db3673759d6"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga018e9a693c39095f66af608f1b3aa5f1"><td class="memItemLeft" align="right" valign="top"> launch & </td><td class="memItemRight" valign="bottom"><b>std::operator &=</b> (launch &__x, launch __y)</td></tr> <tr class="separator:ga018e9a693c39095f66af608f1b3aa5f1"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2798df5614ec4ed91359eb5c467647e0"><td class="memItemLeft" align="right" valign="top"> constexpr launch </td><td class="memItemRight" valign="bottom"><b>std::operator^</b> (launch __x, launch __y)</td></tr> <tr class="separator:ga2798df5614ec4ed91359eb5c467647e0"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga83c3738b85da1e630b1cbd09887f651f"><td class="memItemLeft" align="right" valign="top"> launch & </td><td class="memItemRight" valign="bottom"><b>std::operator^=</b> (launch &__x, launch __y)</td></tr> <tr class="separator:ga83c3738b85da1e630b1cbd09887f651f"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga98992bc36aeeb033d5fbfd2f4dd8ca66"><td class="memItemLeft" align="right" valign="top"> constexpr launch </td><td class="memItemRight" valign="bottom"><b>std::operator|</b> (launch __x, launch __y)</td></tr> <tr class="separator:ga98992bc36aeeb033d5fbfd2f4dd8ca66"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga85c395c77374ee74bda10499e1faad28"><td class="memItemLeft" align="right" valign="top"> launch & </td><td class="memItemRight" valign="bottom"><b>std::operator|=</b> (launch &__x, launch __y)</td></tr> <tr class="separator:ga85c395c77374ee74bda10499e1faad28"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga19464d3078d872dc360e8da16148a339"><td class="memItemLeft" align="right" valign="top"> constexpr launch </td><td class="memItemRight" valign="bottom"><b>std::operator~</b> (launch __x)</td></tr> <tr class="separator:ga19464d3078d872dc360e8da16148a339"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga9f57f3f856244559c075dcd62c95bee8"><td class="memTemplParams" colspan="2"> template<typename _Res > </td></tr> <tr class="memitem:ga9f57f3f856244559c075dcd62c95bee8"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><b>std::swap</b> (promise< _Res > &__x, promise< _Res > &__y) noexcept</td></tr> <tr class="separator:ga9f57f3f856244559c075dcd62c95bee8"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:ga2700089f8b9371e6aafdb9a7e7a552e7"><td class="memTemplParams" colspan="2">template<typename _Res , typename... _ArgTypes> </td></tr> <tr class="memitem:ga2700089f8b9371e6aafdb9a7e7a552e7"><td class="memTemplItemLeft" align="right" valign="top">void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a01422.html#ga2700089f8b9371e6aafdb9a7e7a552e7">std::swap</a> (packaged_task< _Res(_ArgTypes...)> &__x, packaged_task< _Res(_ArgTypes...)> &__y) noexcept</td></tr> <tr class="separator:ga2700089f8b9371e6aafdb9a7e7a552e7"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><p>This is a Standard C++ Library header. </p> <p class="definition">Definition in file <a class="el" href="a00068_source.html">future</a>.</p> </div></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" 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