On Tuesday 17 December, dbangel@zi.fh-koeln.de wrote: > i have a very basic problem and can't solve it. What is the problem? You don't say. Perhaps you want a declaration like struct A; typedef sequence<A> D; struct A { ... D C; }; Cheers, Duncan. -- -- Duncan Grisby -- -- duncan@grisby.org -- -- http://www.grisby.org --