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The Android Open Source Project
2008-10-21 07:00:00 -07:00
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libc/stdlib/seed48.c Normal file
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/* $OpenBSD: seed48.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */
/*
* Copyright (c) 1993 Martin Birgmeier
* All rights reserved.
*
* You may redistribute unmodified or modified versions of this source
* code provided that the above copyright notice and this and the
* following conditions are retained.
*
* This software is provided ``as is'', and comes with no warranties
* of any kind. I shall in no event be liable for anything that happens
* to anyone/anything when using this software.
*/
#include "rand48.h"
extern unsigned short __rand48_seed[3];
extern unsigned short __rand48_mult[3];
extern unsigned short __rand48_add;
unsigned short *
seed48(unsigned short xseed[3])
{
static unsigned short sseed[3];
sseed[0] = __rand48_seed[0];
sseed[1] = __rand48_seed[1];
sseed[2] = __rand48_seed[2];
__rand48_seed[0] = xseed[0];
__rand48_seed[1] = xseed[1];
__rand48_seed[2] = xseed[2];
__rand48_mult[0] = RAND48_MULT_0;
__rand48_mult[1] = RAND48_MULT_1;
__rand48_mult[2] = RAND48_MULT_2;
__rand48_add = RAND48_ADD;
return sseed;
}