> can someone explain what I did wrong and how to correct this. The error message you are getting seems like it's explaining your problem pretty clearly. I dont know if it's possible to explain it any other way. Re-read chapter 5 to see how strings are compared for equality if you are still confused.
On Mon, Jan 31, 2011 at 11:25 AM, Jeremy Duenas <[email protected]> wrote: > Ok so I wrote and compiled my code: > [code] > ;;check-color: symbol symbol symbol symbol -> symbol > ;;consumes four colors. 1 player picks two colors, the 2nd player guesses > the colors. check-color simulates the 1st players checking action. It > consumes four colors. The 1st two arguments to check-color are "targets" and > the latter two are "guesses". the function produces one of the four > answers. > ;;example: (master check-color) = 'Perfect > ;; (masster check-color) = 'OneColorCorrectPosition > ;; (master check-color) = 'OneColorOccurs > ;; (master cheeck-color) = NothingCorrect > (define t1 'red) > (define t2 'green) > (define (check-color t1 t2 g1 g2) > (cond > [(and (= t1 g1)(= t2 g2)) 'Perfect] > [(or (= t1 g1)(= t2 g2)) 'OneColorOccurs] > [(or (or (= t1 g1)(= t1 g2))(or (= t2 g1)(= t2 g2))) 'OneColorOccurs] > [else 'NothingCorrect])) > [/code] > It compiles correctly, but then when I run it using the master.ss teachpack > as told (master check-color) and choose two colors, I get the error: > =: expects type <number> as 1st argument, given: 'green; other arguments > were: 'red > can someone explain what I did wrong and how to correct this. > > Jeremy D. Duenas > 714.864.9686 > > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
