Restrictions on Composite Streams (original) (raw)

ANSI Common Lisp 21 Streams 21.1 Stream Concepts

21.1.4 Restrictions on Composite Streams

The consequences are undefined if any component of a _composite stream_is closed before the composite stream is closed.

The consequences are undefined if the synonym stream symbol is not _bound_to an open stream from the time of the synonym stream's creation until the time it is closed.