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21.2.13 streamp [Function]

streamp object => generalized-boolean

Arguments and Values::

object—an object.

generalized-boolean—a generalized boolean.

Description::

Returns true if object is of type stream; otherwise, returns false.

streamp is unaffected by whether object, if it is a stream, is open or closed.

Examples::
      (streamp *terminal-io*) =>  true
      (streamp 1) =>  false
Notes::
      (streamp object) == (typep object 'stream)