flexi-streams-1.0.7
The simple-array type declaration in output-stream-sequence-length is
wrong because the vector has fill-pointer and adjustable.
(defmethod output-stream-sequence-length ((stream in-memory-output-stream))
(declare (optimize speed))
(with-accessors ((vector vector-stream-vector))
stream
(length (the (simple-array * (*)) vector))))
regards,
T.