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  <div class="titlepage"><div><div><h1 style="clear: both"><code>exception_type &amp;&amp;exception() &amp;&amp;</code></h1></div></div></div>
  <p>Wide contract rvalue reference observer of the stored exception. <code>NoValuePolicy::wide_exception_check()</code> is first invoked, then the reference to the exception is returned. As a valid default constructed exception is always present, no undefined behaviour occurs if <code