Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!mips!apple!agate!ucbvax!hplabs!hp-ses!hp-ptp!jimg
From: jimg@hp-ptp.HP.COM (Jim_Garrison)
Newsgroups: comp.sys.amiga.tech
Subject: Lattice help - drand48() = GURU!
Message-ID: <2290003@hp-ptp.HP.COM>
Date: 1 Feb 90 16:19:07 GMT
Organization: HP Pacific Technology Park - Sunnyvale, Ca.
Lines: 35



Hello everyone!

I have the Lattice 5.04a 'C' compiler, and I've been having a problem with
one of the supplied random number generators - drand48().  Does anyone know
if there's a known problem with this function?

#include <math.h>

main()
{
   double x;
   long t;

   time(&t);
   srand48(t);

   x = drand48();   /* BANG! Guru 0000003.xxxxxxxx */
}

Compiled with:

lc -Lm test.c


I also tried using erand48() with the same results as above.  

Any help would be appreciated.

Thanks a bunch,

Jim Garrison
Hewlett Packard
Industrial Automation Center