<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'> <html xmlns='http://www.w3.org/1999/xhtml' xml:lang='en' lang='en'> <head> <meta http-equiv='Content-Type' content='text/html; charset=utf-8'/> <title>get_error_info</title> <link href='reno.css' type='text/css' rel='stylesheet'/> </head> <body> <div class="body-0"> <div class="body-1"> <div class="body-2"> <div> <div id="boost_logo"> <a href="http://www.boost.org"><img style="border:0" src="../../../boost.png" alt="Boost" width="277" height="86"/></a> </div> <h1>Boost Exception</h1> </div> <!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. --> <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying --> <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> <div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>get_error_info</h3> </div> <div class="RenoIncludeDIV"><pre>namespace boost { <span class="RenoIncludeSPAN"> template <class ErrorInfo,class E> typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> const * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E const & x ); template <class ErrorInfo,class E> typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E & x );</span> }</pre> </div><h4>Requirements:</h4> <div><ul><li> ErrorInfo must be an instance of the <span class="RenoLink"><a href="error_info.html">error_info</a></span> template.</li> <li> E must be polymorphic.</li> </ul></div> <h4>Returns:</h4> <div><ul><li> If dynamic_cast<boost::<span class="RenoLink"><a href="exception.html">exception</a></span> const *>(&x) is 0, or if x does not store an object of type ErrorInfo, the returned value is null.</li> <li> Otherwise, the returned pointer points to the stored value (use <span class="RenoLink"><a href="exception_operator_shl.html">operator<<</a></span> to store values in exception objects.) When x is destroyed, any pointers returned by <span class="RenoLink">get_error_info</span> become invalid.</li> </ul></div> <h4>Throws:</h4> <p>Nothing.</p> <h4>Note:</h4> <p>The interface of <span class="RenoLink">get_error_info</span> may be affected by the build <span class="RenoLink"><a href="configuration_macros.html">configuration macros</a></span>.</p> </div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div> See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_get_error_info_hpp.html">boost/exception/get_error_info.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception.html">current_exception</a> | <a href="error_info.html">error_info</a> | <a href="exception.html">exception</a> | <a href="motivation.html">Motivation</a> | <a href="throw_exception.html">throw_exception</a></span> </div> <!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. --> <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying --> <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> <div id="footer"> <p> <a class="logo" href="http://jigsaw.w3.org/css-validator/check/referer"><img class="logo_pic" src="valid-css.png" alt="Valid CSS" height="31" width="88"/></a> <a class="logo" href="http://validator.w3.org/check?uri=referer"><img class="logo_pic" src="valid-xhtml.png" alt="Valid XHTML 1.0" height="31" width="88"/></a> <small>Copyright (c) 2006-2009 by Emil Dotchevski and Reverge Studios, Inc.<br/> Distributed under the <a href="http://www.boost.org/LICENSE_1_0.txt">Boost Software License, Version 1.0</a>.</small> </p> </div> </div> </div> </div> </body> </html>