compiler/clib/lrand48.c

   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 "rand48.h"
  18
  19 extern unsigned short _rand48_seed[3];
  20
  21 /*****************************************************************************
  22
  23     NAME */
  24
  25         long lrand48(
  26
  27 /*  SYNOPSIS */
  28         void)
  29
  30 /*  FUNCTION
  31
  32     INPUTS
  33
  34     RESULT
  35
  36     NOTES
  37
  38     EXAMPLE
  39
  40     BUGS
  41
  42     SEE ALSO
  43
  44     INTERNALS
  45
  46 ******************************************************************************/
  47 {
  48         _dorand48(_rand48_seed);
  49         return ((long) _rand48_seed[2] << 15) + ((long) _rand48_seed[1] >> 1);
  50 }
  51