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Date:      Mon, 26 Feb 2001 14:22:11 -0800
From:      Kris Kennaway <kris@obsecurity.org>
To:        "Andrey A. Chernov" <ache@nagual.pp.ru>
Cc:        "Jacques A. Vidrine" <n@nectar.com>, arch@freebsd.org
Subject:   Re: rand.c patch for review (was: Re: cvs commit: ports/astro/xglobe/files patch-random)
Message-ID:  <20010226142211.A20768@mollari.cthul.hu>
In-Reply-To: <20010226191008.A72434@nagual.pp.ru>; from ache@nagual.pp.ru on Mon, Feb 26, 2001 at 07:10:09PM %2B0300
References:  <20010225132152.A39554@mollari.cthul.hu> <20010226005004.B59772@nagual.pp.ru> <20010225135429.A47615@mollari.cthul.hu> <20010226020827.A61007@nagual.pp.ru> <20010225151519.A63582@mollari.cthul.hu> <20010226022902.A61216@nagual.pp.ru> <20010225173445.A37510@spawn.nectar.com> <20010226024456.A61566@nagual.pp.ru> <20010226174852.B435@ringworld.oblivion.bg> <20010226191008.A72434@nagual.pp.ru>

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On Mon, Feb 26, 2001 at 07:10:09PM +0300, Andrey A. Chernov wrote:
> We already go throught all this logn tume ago with the same change with
> random() (which is NOT original code). Practice says that nobody seriously
> want old behaviour. Moreover, standards (like SUSv2 f.e.) don't guarantee
> that the formula must be the same on different machines or even through
> different libc versions. It must be the same for single application run
> only, so in theory we can change formula for each application run :-)
>=20
> So, I plan to skip this step as superfuous.

You have my support in this -- people who really want the broken,
not-even-statistically-random rand() can add it to their applications;
it's only about 5 lines of code.  There's no need to penalize everyone
else for their mistakes in using it (or misusing it; see concerns
about people trying to compare rand() results across different
platforms).

Kris

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