Thanks for adding the entry to the errata. It was fun finding the bug in my version: I forgot to /unfreeze/ (call) the function that represents the branches of the `if' statement. I used DrRacket's visual tools—the stepper, the tracer and the debugger—to figure the issue.
Not only that, but I used that find a nasty, nasty bug I introduced while (mistakenly) copying the `subst' meta-function from the book. I was able to go through 3 chapters before finding out that I wrote `X_3' in place of a `X_2'. That was a hard one, it drove me crazy for an hour :) And, of course, DrRacket was indispensable! Best. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
