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| ANSI Common Lisp 21 Streams 21.2 Dictionary of Streams
21.2.41 make-broadcast-stream | Function
  Syntax: 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 Allegro CL Implementation Details: None.

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