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17 lines
343 B
17 lines
343 B
2 years ago
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Exercise 3.13: Consider the following
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make-cycle procedure, which uses the last-pair procedure defined
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in Exercise 3.12:
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(define (make-cycle x)
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(set-cdr! (last-pair x) x)
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x)
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Draw a box-and-pointer diagram that shows the structure z created by
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(define z (make-cycle (list 'a 'b 'c)))
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What happens if we try to compute (last-pair z)?
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