Thomas, Sure looks like a bug. We'll get it fixed, but it may take a few weeks for us to get back with a full report.
On Wed, Apr 25, 2018 at 11:12 AM, Thomas Hickey <[email protected]> wrote: > Maybe a better question is why are all of these true? > > 81985529216486896 = 16b123456789abcdf0 > > 1 > > 81985529216486896 = 16b123456789abcdef > > 1 > > 81985529216486880 = 16b123456789abcde8 > > 1 > > I'm running j806/j64/windows. > > --Th > > On Wed, Apr 25, 2018 at 10:40 AM, Raul Miller <[email protected]> > wrote: > > > P.S. > > > > 240 205 171 137 103 69 35 1 p. 256x > > 81985529216486896 > > > > -- > > Raul > > > > > > On Wed, Apr 25, 2018 at 10:39 AM, Raul Miller <[email protected]> > > wrote: > > > _3 ic 240 205 171 137 103 69 35 1 { a. > > > 81985529216486896 > > > > > > The byte order the machine is using here is little endian > > > > > > https://en.wikipedia.org/wiki/Endianness#Little-endian > > > > > > That means the least significant byte here was 239 (your example) or > > > 240 (my example). > > > > > > But your number was even and 239 is odd... > > > > > > -- > > > Raul > > > > > > On Wed, Apr 25, 2018 at 10:29 AM, Thomas Hickey < > [email protected]> > > wrote: > > >> I have a 64 bit number: > > >> 16b123456789abcdef = 81985529216486896 > > >> > > >> encoded in 8 bytes in a file: > > >> 239 205 171 137 103 69 35 1 > > >> > > >> but > > >> > > >> _3 ic 239 205 171 137 103 69 35 1 { a. returns 81985529216486895 (1 > less > > >> than I expected) > > >> > > >> 16 #.inv 81985529216486895 returns 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 > > >> > > >> 16 #.inv 81985529216486896 returns 1 2 3 4 5 6 7 8 9 10 11 12 13 14 > 15 0 > > >> > > >> I suppose this has something to do with signed 64 bit integers, but I > > don't > > >> understand it. I'm running on a Intel machine (Surface laptop). > > >> > > >> --Th > > >> ------------------------------------------------------------ > ---------- > > >> For information about J forums see http://www.jsoftware.com/ > forums.htm > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
