\ccDefGlobalScope{boost::}
\begin{ccRefEnum}{edge_index_t}

\ccGlobalEnum{enum edge_index_t { edge_index } ; }
\ccRefLabel{edge_index}
\ccHtmlCrossLink{edge_index}

The constant \ccc{edge_index} is a 
\ccAnchor{http://www.boost.org/libs/graph/doc/PropertyTag.html}
{property tag} which identifies the {\em index} property
of an edge of a {\sc Bgl} 
\ccAnchor{http://www.boost.org/libs/graph/doc/Graph.html}{Graph}.


\end{ccRefEnum}
\ccDefGlobalScope{CGAL::}