[plt-scheme] Contract Error Message

From: David Van Horn (dvanhorn at ccs.neu.edu)
Date: Mon Jul 20 14:35:13 EDT 2009

Paulo J. Matos wrote:
> On Mon, Jul 20, 2009 at 7:28 PM, Carl Eastlund<carl.eastlund at gmail.com> wrote:
>> What you wrote was a perfectly acceptable contract that functioned
>> perfectly, except that it wasn't the one you meant it to be.  What
>> alternate behavior would you propose?
>> --Carl
> Now you got me. Why is #f in the error message?

(symbol? string?) => #f

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