On Jun 8, 2009, at 8:19 PM, Brian Rogosky wrote:
Hello,
I’m experiencing an “Illegal Argument” exception when calling the
“long” function.
Hi Brian,
It'll only throw that exception if the argument isn't a number,
string, or symbol. For example, a list value with a single number in
it would produce the error you're seeing; the list would display
without parens in the error message:
Jess> (long (list 123))
Jess reported an error in routine long
while executing (long (list 123)).
Message: Illegal argument 123.
Program text: ( long ( list 123 ) ) at line 1.
Since it looks like you are able to add a debug print at the point of
failure, try something like
(printout t "The bad value is of type " (jess-type ?city) crlf)
If it prints anything other than INTEGER, FLOAT, STRING, SYMBOL, or
FACT, then there's the problem.
---------------------------------------------------------
Ernest Friedman-Hill
Informatics & Decision Sciences, Sandia National Laboratories
PO Box 969, MS 9012, Livermore, CA 94550
http://www.jessrules.com
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