source: trunk/libs/newlib/src/newlib/libc/stdlib/seed48.c @ 577

Last change on this file since 577 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 1.1 KB
Line 
1/*
2 * Copyright (c) 1993 Martin Birgmeier
3 * All rights reserved.
4 *
5 * You may redistribute unmodified or modified versions of this source
6 * code provided that the above copyright notice and this and the
7 * following conditions are retained.
8 *
9 * This software is provided ``as is'', and comes with no warranties
10 * of any kind. I shall in no event be liable for anything that happens
11 * to anyone/anything when using this software.
12 */
13
14#include "rand48.h"
15
16unsigned short *
17_seed48_r (struct _reent *r,
18       unsigned short xseed[3])
19{
20  static unsigned short sseed[3];
21
22  _REENT_CHECK_RAND48(r);
23  sseed[0] = __rand48_seed[0];
24  sseed[1] = __rand48_seed[1];
25  sseed[2] = __rand48_seed[2];
26  __rand48_seed[0] = xseed[0];
27  __rand48_seed[1] = xseed[1];
28  __rand48_seed[2] = xseed[2];
29  __rand48_mult[0] = _RAND48_MULT_0;
30  __rand48_mult[1] = _RAND48_MULT_1;
31  __rand48_mult[2] = _RAND48_MULT_2;
32  __rand48_add = _RAND48_ADD;
33  return sseed;
34}
35
36#ifndef _REENT_ONLY
37unsigned short *
38seed48 (unsigned short xseed[3])
39{
40  return _seed48_r (_REENT, xseed);
41}
42#endif /* !_REENT_ONLY */
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