| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: input-stream
Used by listen. Returns
true or nil
. The
default method uses stream-read-char-no-hang and stream-unread-char. Most streams should define
their own method since it will usually be trivial and will always be
more efficient than the default method.
See also streams.htm for general information on streams in Allegro CL.
Copyright (c) 1998-2016, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |