glibc/stdlib/srand48_r.c

55 lines
1.6 KiB
C

/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
#include <limits.h>
int
__srand48_r (seedval, buffer)
long int seedval;
struct drand48_data *buffer;
{
/* The standards say we only have 32 bits. */
if (sizeof (long int) > 4)
seedval &= 0xffffffffl;
#if USHRT_MAX == 0xffffU
buffer->x[2] = seedval >> 16;
buffer->x[1] = seedval & 0xffffl;
buffer->x[0] = 0x330e;
buffer->a[2] = 0x5;
buffer->a[1] = 0xdeec;
buffer->a[0] = 0xe66d;
#else
buffer->x[2] = seedval;
buffer->x[1] = 0x330e0000UL;
buffer->x[0] = 0;
buffer->a[2] = 0x5deecUL;
buffer->a[1] = 0xe66d0000UL;
buffer->a[0] = 0;
#endif
buffer->c = 0xb;
buffer->init = 1;
return 0;
}
weak_alias (__srand48_r, srand48_r)