write-char

(write-char character &optional stream)

Writes a single character to standard output (or to the given stream), returning the character. Writes the one-character string through write-string on every backend, so it works wherever string output does — including file streams, string streams and socket handles. On a Gray stream instance it calls rontolisp:stream-write-char. It is a function: #'write-char can be passed to funcall, apply and mapc.

ok