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/* $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); |