From owner-freebsd-current  Mon Feb  3  3:19: 3 2003
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Date: Mon, 3 Feb 2003 14:18:59 +0300
From: "Andrey A. Chernov" <ache@nagual.pp.ru>
To: Mark Murray <mark@grondar.org>
Cc: Kris Kennaway <kris@obsecurity.org>,
	Tim Robbins <tjr@FreeBSD.ORG>, current@FreeBSD.ORG
Subject: Re: Final fix for 0 problem (was Re: rand() is broken)
Message-ID: <20030203111858.GA77286@nagual.pp.ru>
References: <20030202222635.GA68806@nagual.pp.ru> <200302031055.h13AtgaX058602@grimreaper.grondar.org> <20030203110841.GA77187@nagual.pp.ru>
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On Mon, Feb 03, 2003 at 14:08:41 +0300, Andrey A. Chernov wrote:
> On Mon, Feb 03, 2003 at 10:55:42 +0000, Mark Murray wrote:
> > 
> > How do you _know_ that your newly chosen magic number isn't going to cause
> > some kind of recurring (and too-short) sequence of numbers?
> 
> I run simple test for it, it is not too short.

To be more specific - it never returns to 0 from this value at least in 
2**31 iterations. You can test it by yourself, the code is obvious:

srand(0)
... loop ...
if (rand() == 0)
	print iteration number

-- 
Andrey A. Chernov
http://ache.pp.ru/

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