stream->list

(stream->list stream) (stream->list stream k)

Returns the elements of stream as a list. With k, only the first k elements, which makes it usable on an infinite stream; without it, the stream must be finite. A Structure and Interpretation of Computer Programs (SICP)/MIT name, not R7RS: no library exports it, so it is visible only to a file with no import and at the REPL.