Returns a string containing, in order, all the characters
that have been output to string-output-stream.
This operation clears any characters on string-output-stream,
so the string contains only those characters which have been output
since the last call to
or since the creation of the string-output-stream,
whichever occurred most recently.
(setq a-stream (make-string-output-stream) a-string "abcdefghijklm") → "abcdefghijklm" (write-string a-string a-stream) → "abcdefghijklm" (get-output-stream-string a-stream) → "abcdefghijklm" (get-output-stream-string a-stream) → ""
The string-output-stream is cleared.
The consequences are undefined if stream-output-string is closed.
The consequences are undefined if string-output-stream is a stream that
was not produced by
The consequences are undefined if string-output-stream was
created implicitly by