\item Let $N$ be the metaclass of $A$. Examine the superclass chains of $N$
in order of decreasing specificity of their most-specific classes. Let $J$
- be the chain head of such a chain, and let $Q$ be the most specific
- superclass of $M$ in the same chain as $J$. Then, if there is currently no
- class pointer of type $Q$, then add a member
+ be the chain head of such a chain. If there is currently no class pointer
+ for the chain headed by $J$, then add a member
\begin{prog}
const $Q$ *_cls_$j$;
\end{prog}
to the vtable pointing to the appropriate @|islots| structure within $M$'s
- class object.
+ class object, where $Q$ is the most specific superclass of $M$ in the same
+ chain as $J$.
\item Examine the superclass chains of $A$ in order of decreasing specificity
of their most-specific classes. Let $I$ be the chain head of such a chain.