Arguments: stream character
Undoes the last call to stream-read-char, as in unread-char. Returns nil
. Every subclass of fundamental-character-input-stream
must define
a method for this function. As with
unread-char,
only one character may be returned to the builtin stream classes.
See also streams.htm for general information on streams in Allegro CL.
The documentation is described in introduction.htm and the index is in index.htm.
Copyright (c) 1998-2000, Franz Inc. Berkeley, CA., USA. All rights reserved.
Created 2000.10.5.