xref: /netbsd-src/lib/libc/stdlib/seed48.c (revision 2a399c6883d870daece976daec6ffa7bb7f934ce)
1 /*	$NetBSD: seed48.c,v 1.4 1998/01/09 03:15:41 perry Exp $	*/
2 
3 /*
4  * Copyright (c) 1993 Martin Birgmeier
5  * All rights reserved.
6  *
7  * You may redistribute unmodified or modified versions of this source
8  * code provided that the above copyright notice and this and the
9  * following conditions are retained.
10  *
11  * This software is provided ``as is'', and comes with no warranties
12  * of any kind. I shall in no event be liable for anything that happens
13  * to anyone/anything when using this software.
14  */
15 
16 #include "namespace.h"
17 #include "rand48.h"
18 
19 #ifdef __weak_alias
20 __weak_alias(seed48,_seed48);
21 #endif
22 
23 unsigned short *
24 seed48(unsigned short xseed[3])
25 {
26 	static unsigned short sseed[3];
27 
28 	sseed[0] = __rand48_seed[0];
29 	sseed[1] = __rand48_seed[1];
30 	sseed[2] = __rand48_seed[2];
31 	__rand48_seed[0] = xseed[0];
32 	__rand48_seed[1] = xseed[1];
33 	__rand48_seed[2] = xseed[2];
34 	__rand48_mult[0] = RAND48_MULT_0;
35 	__rand48_mult[1] = RAND48_MULT_1;
36 	__rand48_mult[2] = RAND48_MULT_2;
37 	__rand48_add = RAND48_ADD;
38 	return sseed;
39 }
40