error: Stack overflow. The resource requirements of the runtime stack have exceeded the memory available to it



This error occurred when the udf has 4 parameters. If there are 3 (and bellow) parameters the query executed as good, when I add the 4th this error occurred. Why is this happening? Is there any restriction on the amount of the parameters?



Note: of course, any change I made on parameters is done in source of the dll, in the declaration of the udf and the dll is update in firebirds path.



The declare:

DECLARE EXTERNAL FUNCTION DN_FIXSTRING

cstring(100),cstring(100),cstring(100) /*,cstring(100) the wrong parameter*/

RETURNS cstring(300)

ENTRY_POINT 'dn_fixstring' MODULE_NAME 'dn_sql_dll_functions';

commit work;



Kind regards

Dennis





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