46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
/* $OpenBSD: seed48.c,v 1.6 2015/09/13 15:20:40 guenther Exp $ */
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/*
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* Copyright (c) 1993 Martin Birgmeier
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* All rights reserved.
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*
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* You may redistribute unmodified or modified versions of this source
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* code provided that the above copyright notice and this and the
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* following conditions are retained.
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*
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* This software is provided ``as is'', and comes with no warranties
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* of any kind. I shall in no event be liable for anything that happens
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* to anyone/anything when using this software.
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*/
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#include "rand48.h"
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unsigned short *
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seed48(unsigned short xseed[3])
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{
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unsigned short *res;
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res = seed48_deterministic(xseed);
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__rand48_deterministic = 0;
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return res;
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}
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unsigned short *
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seed48_deterministic(unsigned short xseed[3])
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{
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static unsigned short sseed[3];
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__rand48_deterministic = 1;
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sseed[0] = __rand48_seed[0];
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sseed[1] = __rand48_seed[1];
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sseed[2] = __rand48_seed[2];
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__rand48_seed[0] = xseed[0];
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__rand48_seed[1] = xseed[1];
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__rand48_seed[2] = xseed[2];
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__rand48_mult[0] = RAND48_MULT_0;
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__rand48_mult[1] = RAND48_MULT_1;
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__rand48_mult[2] = RAND48_MULT_2;
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__rand48_add = RAND48_ADD;
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return sseed;
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}
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DEF_WEAK(seed48_deterministic);
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