the windows zlib1.dll binary is actually copied from j701 gtk binary which was built by Norman Drinkwater.
zlib_compress also supports an optional left argument between 0 and 9. 0 is uncompressed, 1 is the fastest, and 9 slowest. zlib_uncompress also supports an optional left argument which is the size of uncompressed data. On Sep 21, 2014 5:36 AM, "John Baker" <[email protected]> wrote: > The recently released zlib addon is a big plus for j64 users. > > The compiled version is very effective on J text and might prove useful for > binary data as well. > > The following is a worst case scenario - compressing and uncompressing a > million random numbers > > t =. 1000000?1000000 > > ts' t -: (3!:2) zlib_uncompress zlib_compress (3!:1) t' > > 0.987848 3.77554e7 > > > But on my 64 bit win8.1 machine it gets through the cycle in less than a > second. On more realistic data performance is much better. > > > Kudos to Bill and anyone else that worked on this addon. > > > -- > John D. Baker > [email protected] > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
