On Wednesday, 24 October 2012 at 20:15:07 UTC, H. S. Teoh wrote: > hashOf works for pretty much anything (it's just a byte-based > algo). Byte-based? what about Set!(Tuple!(int, string)) s; s[tuple(1, "hi")] = 1; writeln(tuple(1, "hi".dup) in s); // null or not?