CSSE 304 References quiz: May 4, 2015 (Session 29) Name _________________ Section: 01 02 03
(20 homework points)
1. (12) For the reference ADT constructor (which is also a new observer in the environment ADT) and the two new procedures that take a reference as one of their arguments, fill in the details of this table:
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Procedure name
Argument(s)
What the procedure returns
2. (8) Assume that the above three functions have been implemented (that is what we will do today). How could we implement the following in terms of them?
(define apply-env
(lambda (env sym) ; you fill in the rest
(define eval-exp
(lambda (exp env)
(cases expression exp
; the other cases would go here …
[set!-exp (id exp) ; you fill in the details for this case
Turn in this quiz and pick up today’s class notes handout.
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