blob: 47f5533d16606e2bb8f9b358e448e57a91e18cc2 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* Test binvert_limb.
Copyright 2000-2003 Free Software Foundation, Inc.
This file is part of the GNU MP Library test suite.
The GNU MP Library test suite is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
The GNU MP Library test suite is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
Public License for more details.
You should have received a copy of the GNU General Public License along with
the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gmp-impl.h"
#include "longlong.h"
#include "tests.h"
void
one (mp_limb_t n)
{
mp_limb_t inv, prod;
binvert_limb (inv, n);
prod = (inv * n) & GMP_NUMB_MASK;
if (prod != 1)
{
printf ("binvert_limb wrong\n");
mp_limb_trace (" n ", n);
mp_limb_trace (" got ", inv);
mp_limb_trace (" product ", prod);
abort ();
}
}
void
some (void)
{
int i;
for (i = 0; i < 10000; i++)
one (refmpn_random_limb () | 1);
}
void
all (void)
{
mp_limb_t n;
n = 1;
do {
one (n);
n += 2;
} while (n != 1);
}
int
main (int argc, char *argv[])
{
tests_start ();
if (argc >= 2 && strcmp (argv[1], "-a") == 0)
{
/* it's feasible to run all values on a 32-bit limb, but not a 64-bit */
all ();
}
else
{
some ();
}
tests_end ();
exit (0);
}
|
