write-char character &optional output-stream => character
Arguments and Values:
output-stream -- an output stream designator. The default is standard output.
write-char outputs character to output-stream.
(write-char #\a) >> a => #\a (with-output-to-string (s) (write-char #\a s) (write-char #\Space s) (write-char #\b s)) => "a b"
The output-stream is modified.
Exceptional Situations: None.
read-char, write-byte, write-sequence