I was messing around with Father Time today and wrote this program: (require 2htdp/image)
(square (- seconds 1564512004) "solid" "blue”) I expected to see a growing blue square, but instead got: .../lang/prim.rkt:24:44: square: expects a non negative real number as first argument, given (signal 145 '() #f #<procedure:...ime/lang-ext.rkt:646:20> 2 #<continuation-mark-set> #<parameterization> (list (signal 1564512149 '(#<weak-box>) #f #<procedure:...ime/lang-ext.rkt:467:23> 1 #<continuation-mark-set> #<parameterization> '()) 156451… Somehow the “I’m a signal but I’m also a number” abstraction didn’t quite flow through the “square” primitive. Is this supposed to work? John -- You received this message because you are subscribed to the Google Groups "Racket Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-dev/c12a06a8-7732-4d11-b4c7-a396967bd759%40mtasv.net.
