As Mikal Hart wrote: > For example, if you run a little Arduino sketch (btw, Arduino uses the > AVR-168P) that calls random() nine times (without seeding), you immedately > get a repeat in your series:
> 0 31031784 26852320 4242000 842292 453960 211932 84160 0 ... and so on (!) What version of avr-libc are you using? You're never supposed to ever get a 0, because the PRNG does not work whenever it hits a 0. There's been a bug once but that has been fixed long since. > Developers who use Windows don't seem to be affected. The random() > and rand() sequences with Windows are entirely reasonable. That would also be an indication that the issue has been fixed long since, but the Ubuntu users are apparently using a way old version of avr-libc (probably since their package maintainer lags quite a couple of years behind). > Thanks! Is there somewhere else that I should post bug reports like > this? The bug reporting system can be found at https://savannah.nongnu.org/bugs/?group=avr-libc -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-libc-dev
