e convex hull
</li>
<li><a href="user.c#errexit">qh_errexit</a> report
error with a facet and a ridge</li>
<li><a href="libqhull.c#errexit2">qh_errexit2</a> report
error with two facets </li>
<li><a href="user.c#errprint">qh_errprint</a> print
erroneous facets, ridge, and vertex </li>
<li><a href="user.c#printfacetlist">qh_printfacetlist</a>
print all fields for a list of facets </li>
</ul>

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