lib/libc/stdlib/lrand48.c

   1 /*      $NetBSD: lrand48.c,v 1.8 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: lrand48.c,v 1.8 2005/06/12 05:21:28 lukem Exp $");
  19 #endif /* LIBC_SCCS and not lint */
  20
  21 #include "namespace.h"
  22 #include "rand48.h"
  23
  24 #ifdef __weak_alias
  25 __weak_alias(lrand48,_lrand48)
  26 #endif
  27
  28 long
  29 lrand48(void)
  30 {
  31         __dorand48(__rand48_seed);
  32         return (long)((unsigned long) __rand48_seed[2] << 15) +
  33             ((unsigned long) __rand48_seed[1] >> 1);
  34 }