xref: /freebsd/lib/libc/gen/lrand48.c (revision 22cf89c938886d14f5796fc49f9f020c23ea8eaf)
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 #include "rand48.h"
16 
17 extern unsigned short _rand48_seed[3];
18 
19 long
20 lrand48(void)
21 {
22 	_dorand48(_rand48_seed);
23 	return ((long) _rand48_seed[2] << 15) + ((long) _rand48_seed[1] >> 1);
24 }
25