[plt-scheme] question from a newbie regarding the import of a library

From: David Van Horn (dvanhorn at ccs.neu.edu)
Date: Sun Apr 5 11:44:28 EDT 2009

Jon Loldrup wrote:
> Well it sure does evaluate successfully now, and testing the first 4 
> expressions on page 4 in "The Reasoned Schemer" makes them all return 
> the same value as the ones in that book. Only thing is, the book doesn't 
> mention the definitions of fail and succeed (only that they are longs 
> for #u and #s), so I'm not sure whether this solution is some crude hack 
> or the official way to do it.

The book gives definitions of #s and #u, both in English and Scheme. 
See the code at the end of the book.  The definitions you gave are 
equivalent, so this is no crude hack.


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