Re: random/3 problems?
Daniel Diaz <[email protected]> Mon, 29 Jun 2009 10:00:54 +0200
| Newsgroups | gmane.comp.gnu.prolog.bugs |
|---|---|
| Message-ID | <[email protected]> |
Dave Sworin wrote: > In gprolog 1.3.1 when I run random/3 with the call below I get integers. > random(1.0,10.0,RANDOM_NUMBER). > The 1.3.1 manual says that if both Base and Max are integers > then Number will be an integer. I assumed this mean an integer > as determined by integer/1 built-in Prolog predicate. ??? > The work-around is easy enough with random/1 so this is not critical. There is no bug here, 1.0 is not a Prolog integer. > > I also found the following calls to random/3 return the same random number: > :- randomize,random(1,10,M),randomize,random(1,10,N). M and N are > the same. This was only tested so far on a very old Fedora 2 platform, > Pentium III and I have not had a chance to try it on a more recent version > of Linux, but it doesn't seem right. The actual calls where in two(2) > different goals, not right after each other, as shown above. This is clearly a bug, thank you for the report. Daniel -- Ce message a ete verifie par MailScanner pour des virus ou des polluriels et rien de suspect n'a ete trouve.