17 The STREAM package
stream-listen
Generic Function
- Summary
- A function used by
listenthat returnstif there is input available. - Package
stream- Signature
stream-listen stream => bool- Arguments
-
- stream
A stream.
- Values
-
- bool
A generalized boolean.
- Description
- The generic function
stream-listenis used bylistenand returnstif there is input available. The default method usesstream-read-char-no-hangandstream-unread-char. Most streams should define their own method as this is usually trivial and more efficient than the method provided. - See also
stream-read-char-no-hangstream-unread-char