1/* Test gmp_urandomb_ui.
2
3Copyright 2003, 2005 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library.
6
7The GNU MP Library is free software; you can redistribute it and/or modify
8it under the terms of the GNU Lesser General Public License as published by
9the Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12The GNU MP Library is distributed in the hope that it will be useful, but
13WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15License for more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
19
20#include <stdio.h>
21#include <stdlib.h>
22#include "gmp.h"
23#include "gmp-impl.h"
24#include "tests.h"
25
26/* Expect numbers generated by rstate to obey the number of bits requested.
27   No point testing bits==BITS_PER_ULONG, since any return is acceptable in
28   that case.  */
29void
30check_one (const char *name, gmp_randstate_ptr rstate)
31{
32  unsigned long  bits, limit, got;
33  int    i;
34
35  for (bits = 0; bits < BITS_PER_ULONG; bits++)
36    {
37      /* will demand got < limit */
38      limit = (1L << bits);
39
40      for (i = 0; i < 5; i++)
41        {
42          got = gmp_urandomb_ui (rstate, bits);
43          if (got >= limit)
44            {
45              printf ("Return value out of range:\n");
46              printf ("  algorithm: %s\n", name);
47              printf ("  bits:  %lu\n", bits);
48              printf ("  limit: %#lx\n", limit);
49              printf ("  got:   %#lx\n", got);
50              abort ();
51            }
52        }
53    }
54}
55
56int
57main (int argc, char *argv[])
58{
59  tests_start ();
60
61  call_rand_algs (check_one);
62
63  tests_end ();
64  exit (0);
65}
66