Michael Haggerty <mhag...@alum.mit.edu> writes: > I think IN_ORDER really only applies to *binary* trees, not arbitrary > trees like a filesystem.
How true. Even if we were giving a sorted output (and dir-iterator doesn't and there is no need for it to), dir/ should come before any of its contents, so for that application we can use pre-order, and there is no sensible and useful definition of in-order. Thanks.
