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#### 21.2.41 make-broadcast-stream [Function]

`make-broadcast-stream` &rest streams ⇒ broadcast-stream

#### Arguments and Values::

stream—an output stream.

broadcast-stream—a broadcast stream.

#### Description::

Returns a broadcast stream.

#### Examples::

     (setq a-stream (make-string-output-stream)
            b-stream (make-string-output-stream)) ⇒  #<String Output Stream>
     (format (make-broadcast-stream a-stream b-stream)
              "this will go to both streams") ⇒  NIL
     (get-output-stream-string a-stream) ⇒  "this will go to both streams"
     (get-output-stream-string b-stream) ⇒  "this will go to both streams"

#### Exceptional Situations::

Should signal an error of type type-error if any stream is not an output stream.

#### See Also::

broadcast-stream-streams