xref: /freebsd/lib/libc/gen/mrand48.c (revision af23369a6deaaeb612ab266eb88b8bb8d560c322)
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 <sys/cdefs.h>
15 __FBSDID("$FreeBSD$");
16 
17 #include <stdint.h>
18 
19 #include "rand48.h"
20 
21 extern unsigned short _rand48_seed[3];
22 
23 long
24 mrand48(void)
25 {
26 
27 	_dorand48(_rand48_seed);
28 	return ((int32_t)(((uint32_t)_rand48_seed[2] << 16) |
29 	    (uint32_t)_rand48_seed[1]));
30 }
31