+
+void cat_stored_values_create (const struct variable *);
+void cat_stored_values_destroy (struct cat_vals *);
+
+size_t cat_value_find (const struct variable *, const union value *);
+
+const union value *cat_subscript_to_value (const size_t,
+ const struct variable *);
+
+
+void cat_value_update (const struct variable *, const union value *);