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Date:      Mon, 3 Feb 2003 02:29:47 -0800 (PST)
From:      "Andrey A. Chernov" <ache@FreeBSD.org>
To:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   cvs commit: src/sys/libkern random.c
Message-ID:  <200302031029.h13ATmVi027137@repoman.freebsd.org>

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ache        2003/02/03 02:29:47 PST

  Modified files:
    sys/libkern          random.c 
  Log:
  Park & Miller PRNG can be safely initialized with any value but 0 and stuck
  at 0 as designed. Its BSD adaptation tries to fight it by mapping 0 to
  2147483647 after calculation, but this method not works since 2147483647
  seed returns to 0 again on the next interation. Instead of after calculation
  mapping, map 0 to another value _before_ calculation, so it never stucks.
  
  Revision  Changes    Path
  1.8       +4 -2      src/sys/libkern/random.c

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