This page is part of the web mail archives of SRFI 40 from before July 7th, 2015. The new archives for SRFI 40 contain all messages, not just those from before July 7th, 2015.
By the way, the SRFI-40 reference implementation of stream-filter unfortunately seems to leak memory quite rapidly in MzScheme and even more rapidly in Chez Scheme. On my machine the times3 example using the SRFI stream-filter will run out of memory in <15 minutes in Mz and <5 minutes in Chez. Regards Andre