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<h1>Boost Exception</h1>
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<div class="RenoIncludeDIV"><h3>exception::what</h3>
<div class="RenoIncludeDIV"><pre>virtual char const * <span class="RenoLink"><a href="exception_what.html">what</a></span>() const throw();</pre>
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</div><h4>Returns:</h4>
<p>The default implementation is equivalent to return <span class="RenoLink"><a href="exception_diagnostic_information.html">exception::diagnostic_information</a></span>(). The signature of boost::<span class="RenoLink"><a href="exception_what.html">exception::what</a></span> is identical to the familiar std::exception::what function, so that when an exception type that derives both std::exception and boost::<span class="RenoLink"><a href="exception.html">exception</a></span> overrides the what function, it overrides both std::exception::what and boost::<span class="RenoLink"><a href="exception_what.html">exception::what</a></span>.</p>
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<h4>Throws:</h4>
<p>Nothing.</p>
<h4>Note:</h4>
<p>The return value remains valid until the exception object from which it is obtained is destroyed or modified.</p>
</div><h3>See also:</h3>
<div class="RenoPageList"><a href="exception.html">exception<br/>
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