Martijn van Oosterhout <kleptog@svana.org> writes: > You're right, PostgreSQL uses a form of subclassing, so that a (for > example) struct ArrayRefExprState is occasionally referred to using a > (struct ExprState*) or even a (struct Node*). In C, the logical way to > get that to work it by casting, do you have a better way?
There are other ways of achieving the same thing. Structs containing a union for the subclass fields for example. -- greg ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
