Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!bagate!cbmvax!cbmehq!cbmdeo!adspdk!hclausen
From: hclausen@adspdk.UUCP (Henrik Clausen)
Newsgroups: comp.sys.amiga.tech
Subject: Re: rand() within a range.
Message-ID: <1850efff.ARN114a@adspdk.UUCP>
Date: 5 Dec 90 16:31:43 GMT
References: <666@sheoak.bcae.oz>
Reply-To: hclausen@adspdk.UUCP
Followup-To: comp.sys.amiga.tech
Organization: Graffiti Data
Lines: 27

In article <666@sheoak.bcae.oz>, David Thiele writes:

> Is there a way to generate random numbers within a certain range in 
> Lattice C??. Ive done it with the following code but it's not very
> elegant (or fast!).

   You said it :-)

   Try something like:

int Random(int Range)
{
	return((int)(Range * drand48()));
}


   Add offsets at your desire. Seed from the timer with srand48().
drand48() returns a double, and is supposed to be quite good.

   BTW, this stuff is in your manual.


                                   -Henrik

| Henrik Clausen, Graffiti Data | If the Doors of Perception where cleansed, |
| ...{pyramid|rutgers}!cbmvax!  | Man would see Reality as it is - Infinite. |
\______cbmehq!adspdk!hclausen___|_________________________________W. Blake___/