Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-winken!uunet!cbmvax!vu-vlsi!swatsun!platt
From: platt@cs.swarthmore.edu (Steve Platt)
Newsgroups: comp.graphics
Subject: Re: Pixar's noise function
Keywords: random numbers, Byte, elephants
Message-ID: <2755@babylon.cs.swarthmore.edu>
Date: 24 Apr 89 00:25:31 GMT
References: <2553@ssc-vax.UUCP> <3599@pixar.UUCP> <97699@sun.Eng.Sun.COM> <1592@ccncsu.ColoState.EDU> <43327@tut.cis.ohio-state.edu> <1648@ccncsu.ColoState.EDU> <1771@skinner.nprdc.arpa> <1669@ccncsu.ColoState.EDU> <465@celia.UUCP>
Reply-To: platt@babylon.UUCP (Steve Platt)
Organization: SUN Lab, Swarthmore College, PA
Lines: 10


Off the top of my head,

int floor(x)
double x;
{  if (x>=0) return(trunc(x));
      else return(-trunc(-x));
}

seems to do the trick.