A generic function that determines if an object is an interactive stream.
cl
interactive-stream-p stream => result
stream
A stream.
result
A generalized boolean.
The predicate interactive-stream-p is implemented as a generic function. The fundamental-stream class provides a default method that returns nil.
interactive-stream-p
nil
input-stream-p output-stream-p
LispWorks User Guide and Reference Manual - 20 Sep 2017