[plt-scheme] Problem exporting constructor primitives for HtDP beginner student

From: Nadeem Abdul Hamid (nadeem at acm.org)
Date: Mon May 11 09:22:08 EDT 2009

That was it. Thank you!
--- nadeem

On May 11, 2009, at 5:01 AM, Noel Welsh wrote:

> Probably you need to make the structure transparent
>  (define-struct book (title author year) #:transparent)
> N.
>> The field values of the structure are not displayed as expected,  
>> and the
>> test fails.

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