where is the specification of "pack" in ex 3.39 ?

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Javran Cheng

Jan 21, 2014, 1:07:41 AM1/21/14
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I'm working on chapter 3 exercises, ex 3.39 says we should extend the translator & interpreter to handler `pack` and `unpack`.

I can find the definition of `unpack` in ex 3.18, but I find `pack` nowhere in the book.

I'm wondering what would `pack` do?

Thank you.

Mitchell Wand

Jan 27, 2014, 3:45:49 PM1/27/14
to eopl3
Yes, there is no 'pack'.  You can safely ignore that part of exercise 3.39. (Sorry about that.)


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