Blame stdlib/seed48_r.c

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/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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int
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__seed48_r (unsigned short int seed16v[3], struct drand48_data *buffer)
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{
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  /* Save old value at a private place to be used as return value.  */
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  memcpy (buffer->__old_x, buffer->__x, sizeof (buffer->__x));
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  /* Install new state.  */
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  buffer->__x[2] = seed16v[2];
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  buffer->__x[1] = seed16v[1];
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  buffer->__x[0] = seed16v[0];
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  buffer->__a = 0x5deece66dull;
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  buffer->__c = 0xb;
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  buffer->__init = 1;
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  return 0;
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}
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weak_alias (__seed48_r, seed48_r)