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<h1>Boost Exception</h1>
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<div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>get_error_info</h3>
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<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.html">error_info::value_type</a></span> const * get_error_info( E const & x );
template <class ErrorInfo,class E>
typename ErrorInfo::<span class="RenoLink"><a href="error_info_value_type.html">error_info::value_type</a></span> * get_error_info( 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>
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<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>
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<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>
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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>
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