1/* Test gmp_randinit_set.
2
3Copyright 2003 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 after a gmp_randinit_set that the new and old generators will
27   produce the same sequence of numbers */
28void
29check_one (const char *name, gmp_randstate_ptr src)
30{
31  gmp_randstate_t dst;
32  mpz_t  sz, dz;
33  int    i;
34
35  gmp_randinit_set (dst, src);
36  mpz_init (sz);
37  mpz_init (dz);
38
39  for (i = 0; i < 20; i++)
40    {
41      mpz_urandomb (sz, src, 123);
42      mpz_urandomb (dz, dst, 123);
43
44      if (mpz_cmp (sz, dz) != 0)
45        {
46          printf     ("gmp_randinit_set didn't duplicate randstate\n");
47          printf     ("  algorithm: %s\n", name);
48          gmp_printf ("  from src:  %#Zx\n", sz);
49          gmp_printf ("  from dst:  %#Zx\n", dz);
50          abort ();
51        }
52    }
53
54  mpz_clear (sz);
55  mpz_clear (dz);
56  gmp_randclear (dst);
57}
58
59int
60main (int argc, char *argv[])
61{
62  tests_start ();
63
64  call_rand_algs (check_one);
65
66  tests_end ();
67  exit (0);
68}
69