[Openmcl-devel] should (concatenate (type-of "HTML") "HTML" "-DIRECTORY") work?

Greg Pfeil greg at clozure.com
Tue Dec 21 07:23:20 PST 2010

On 21 Dec 2010, at 16:12, Stas Boukarev wrote:
> Karsten Poeck <karsten.poeck at gmail.com> writes:
>> the following fails in clozure recent sources,
>> ? (let ((data-type-string (string :html)))
>>      (concatenate (type-of data-type-string) data-type-string "-DIRECTORY"))

> (type-of "HTML") => (SIMPLE-BASE-STRING 4), a string of length 4, but
> the result of your concatenation will be a string of length 14.

Replace TYPE-OF with CLASS-OF to get something a bit less restrictive.

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