References</span></a>
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      <li><a href="#informative"><span class="secno"></span> <span class="content">Informative References</span></a>
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   <h2 class="heading settled" data-level="1" id="bg"><span class="secno">1. </span><span class="content">Background</span><a class="self-link" href="#bg"></a></h2>
   <p>The Standard was simplified in <a data-link-type="biblio" href="#biblio-p0394r4" title="Hotel Parallelifornia: terminate() for Parallel Algori