Currently, unlike remove and remove-duplicates, assoc and member cannot use a user-provided equality check. I have a patch that fixes that by adding an optional argument to these two functions.
With this patch, assoc and member are implemented in Racket. They are currently implemented in C. I haven't measured the performance impact of the change, but I can do it if someone believes it's necessary. Is anyone opposed to this change? Vincent _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
