stream-element-type stream => typespec
Arguments and Values:
typespec---a type specifier.
stream-element-type returns a type specifier that indicates the types of objects that may be read from or written to stream.
Streams created by open have an element type restricted to integer or a subtype of type character.
;; Note that the stream must accomodate at least the specified type, ;; but might accomodate other types. Further note that even if it does ;; accomodate exactly the specified type, the type might be specified in ;; any of several ways. (with-open-file (s "test" :element-type '(integer 0 1) :if-exists :error :direction :output) (stream-element-type s)) => INTEGER OR=> (UNSIGNED-BYTE 16) OR=> (UNSIGNED-BYTE 8) OR=> BIT OR=> (UNSIGNED-BYTE 1) OR=> (INTEGER 0 1) OR=> (INTEGER 0 (2))
Side Effects: None.
Affected By: None.
Should signal an error of type type-error if stream is not a stream.
See Also: None.