I have a structure with a guard function. It works well. However, I want to use it in a (shared ...) construct, and when the guard runs, a value is #<undefined>. I'm fine with letting the guard accept #<undefined> as a legal value, but I can't figure out any way to test for it.
Is there such a beast, or is #<undefined> untouchable? Todd _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
