I thought you were the one who suggested the IF and ELSE macros in http://canonical.org/~kragen/sw/aspmisc/actor.c. :)

Interestingly, in http://canonical.org/~kragen/sw/dev3/paperalgo, I haven't yet run into the desire to have more than one `case` in a pattern-matching `switch`. I just added that piece of code from Vicissicalc to the paperalgo page.