1 /* $NetBSD: nrand48.c,v 1.9 2005/06/12 05:21:28 lukem 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 <sys/cdefs.h> 17 #if defined(LIBC_SCCS) && !defined(lint) 18 __RCSID("$NetBSD: nrand48.c,v 1.9 2005/06/12 05:21:28 lukem Exp $"); 19 #endif /* LIBC_SCCS and not lint */ 20 21 #include "namespace.h" 22 23 #include <assert.h> 24 25 #include "rand48.h" 26 27 #ifdef __weak_alias __weak_alias(nrand48,_nrand48)28__weak_alias(nrand48,_nrand48) 29 #endif 30 31 long 32 nrand48(unsigned short xseed[3]) 33 { 34 _DIAGASSERT(xseed != NULL); 35 36 __dorand48(xseed); 37 return (long)((unsigned long) xseed[2] << 15) + 38 ((unsigned long) xseed[1] >> 1); 39 } 40