| Allegro CL version 6.2 Unrevised from 6.1 |
Arguments: character-input-stream
This is used to implement read-char-no-hang. It returns either a
character, or nil
if no input is currently
available, or :eof
if end-of-file is reached. The default
method provided by fundamental-character-input-stream
simply calls stream-read-char; this is sufficient for file
streams, but interactive streams should define their own method.
See also streams.htm for general information on streams in Allegro CL.
Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. This page was not revised from the 6.1 page.
Created 2002.2.26.
| Allegro CL version 6.2 Unrevised from 6.1 |