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Correct answer for 22.8 to reflect original text #192

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Correct answer for 22.8 to reflect original text #192

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11 changes: 4 additions & 7 deletions docs/chapter22.md
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Expand Up @@ -1127,13 +1127,10 @@ Explain how this would be done both for the first version of the interpreter and
**Answer 22.2** There is no way to implement a full `call/cc` to Common Lisp, but the following works for cases where the continuation is only used with dynamic extent:

```lisp
(defun call/cc (cc computation)
"Make the continuation accessible to a Scheme procedure."
(funcall computation cc
;; Package up CC into a Scheme function:
#'(lambda (cont val)
(declare (ignore cont))
(funcall cc val))))
(defun call/cc (computation)
"Call the computation, passing it the current continuation.
The continuation has only dynamic extent."
(funcall computation #'(lambda (x) (return-from call/cc x))))
```

**Answer 22.3** No.
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