xref: /netbsd-src/external/lgpl3/gmp/dist/mini-gmp/tests/t-powm.c (revision c38e7cc395b1472a774ff828e46123de44c628e9)
1 /*
2 
3 Copyright 2012, Free Software Foundation, Inc.
4 
5 This file is part of the GNU MP Library test suite.
6 
7 The GNU MP Library test suite is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 3 of the License,
10 or (at your option) any later version.
11 
12 The GNU MP Library test suite is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
15 Public License for more details.
16 
17 You should have received a copy of the GNU General Public License along with
18 the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
19 
20 #include <limits.h>
21 #include <stdlib.h>
22 #include <stdio.h>
23 
24 #include "testutils.h"
25 
26 #define MAXBITS 400
27 #define COUNT 1000
28 
29 void
30 testmain (int argc, char **argv)
31 {
32   unsigned i;
33   mpz_t b, e, m, res, ref;
34 
35   mpz_init (b);
36   mpz_init (e);
37   mpz_init (m);
38   mpz_init (res);
39   mpz_init (ref);
40 
41   for (i = 0; i < COUNT; i++)
42     {
43       mini_random_op4 (OP_POWM, MAXBITS, b, e, m, ref);
44       mpz_powm (res, b, e, m);
45       if (mpz_cmp (res, ref))
46 	{
47 	  fprintf (stderr, "mpz_powm failed:\n");
48 	  dump ("b", b);
49 	  dump ("e", e);
50 	  dump ("m", m);
51 	  dump ("r", res);
52 	  dump ("ref", ref);
53 	  abort ();
54 	}
55     }
56   mpz_clear (b);
57   mpz_clear (e);
58   mpz_clear (m);
59   mpz_clear (res);
60   mpz_clear (ref);
61 }
62