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<h1>Boost Exception</h1>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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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 &lt;class ErrorInfo,class E&gt;
    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 &amp; x );
    
    template &lt;class ErrorInfo,class E&gt;
    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 &amp; 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&lt;boost::<span class="RenoLink"><a href="exception.html">exception</a></span> const *&gt;(&amp;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&lt;&lt;</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>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a>&nbsp;| <a href="boost-exception.html">Boost Exception</a>&nbsp;| <a href="boost_exception_get_error_info_hpp.html">boost/exception/get_error_info.hpp</a>&nbsp;| <a href="configuration_macros.html">Configuration Macros</a>&nbsp;| <a href="current_exception.html">current_exception</a>&nbsp;| <a href="error_info.html">error_info</a>&nbsp;| <a href="exception.html">exception</a>&nbsp;| <a href="motivation.html">Motivation</a></span>
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