xref: /haiku/src/system/libroot/posix/glibc/stdlib/nrand48_r.c (revision 5af32e752606778be5dd7379f319fe43cb3f6b8c)
1*5af32e75SAxel Dörfler /* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
2*5af32e75SAxel Dörfler    This file is part of the GNU C Library.
3*5af32e75SAxel Dörfler    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
4*5af32e75SAxel Dörfler 
5*5af32e75SAxel Dörfler    The GNU C Library is free software; you can redistribute it and/or
6*5af32e75SAxel Dörfler    modify it under the terms of the GNU Lesser General Public
7*5af32e75SAxel Dörfler    License as published by the Free Software Foundation; either
8*5af32e75SAxel Dörfler    version 2.1 of the License, or (at your option) any later version.
9*5af32e75SAxel Dörfler 
10*5af32e75SAxel Dörfler    The GNU C Library is distributed in the hope that it will be useful,
11*5af32e75SAxel Dörfler    but WITHOUT ANY WARRANTY; without even the implied warranty of
12*5af32e75SAxel Dörfler    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13*5af32e75SAxel Dörfler    Lesser General Public License for more details.
14*5af32e75SAxel Dörfler 
15*5af32e75SAxel Dörfler    You should have received a copy of the GNU Lesser General Public
16*5af32e75SAxel Dörfler    License along with the GNU C Library; if not, write to the Free
17*5af32e75SAxel Dörfler    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18*5af32e75SAxel Dörfler    02111-1307 USA.  */
19*5af32e75SAxel Dörfler 
20*5af32e75SAxel Dörfler #include <stdlib.h>
21*5af32e75SAxel Dörfler 
22*5af32e75SAxel Dörfler int
__nrand48_r(xsubi,buffer,result)23*5af32e75SAxel Dörfler __nrand48_r (xsubi, buffer, result)
24*5af32e75SAxel Dörfler      unsigned short int xsubi[3];
25*5af32e75SAxel Dörfler      struct drand48_data *buffer;
26*5af32e75SAxel Dörfler      long int *result;
27*5af32e75SAxel Dörfler {
28*5af32e75SAxel Dörfler   /* Compute next state.  */
29*5af32e75SAxel Dörfler   if (__drand48_iterate (xsubi, buffer) < 0)
30*5af32e75SAxel Dörfler     return -1;
31*5af32e75SAxel Dörfler 
32*5af32e75SAxel Dörfler   /* Store the result.  */
33*5af32e75SAxel Dörfler   if (sizeof (unsigned short int) == 2)
34*5af32e75SAxel Dörfler     *result = xsubi[2] << 15 | xsubi[1] >> 1;
35*5af32e75SAxel Dörfler   else
36*5af32e75SAxel Dörfler     *result = xsubi[2] >> 1;
37*5af32e75SAxel Dörfler 
38*5af32e75SAxel Dörfler   return 0;
39*5af32e75SAxel Dörfler }
40*5af32e75SAxel Dörfler weak_alias (__nrand48_r, nrand48_r)
41