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