union $B$__ichainu_$i$ $i$; \\
\quad$\vdots$ \- \\
\};
- \\[\bigskipamount]
+ \\+
typedef struct $C$__ichain_$h$ $C$;
\end{prog}
\quad$\vdots$ \- \\
\} $c$; \- \\
\};
- \\[\bigskipamount]
+ \\+
extern const union $C$__vtu_$h$ $C$__vtable_$h$;
\end{prog}