/* Test mpz_nextprime.
Copyright 2009 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 "gmp.h"
#include "gmp-impl.h"
#include "tests.h"
void
refmpz_nextprime (mpz_ptr p, mpz_srcptr t)
{
mpz_add_ui (p, t, 1L);
while (! mpz_probab_prime_p (p, 10))
mpz_add_ui (p, p, 1L);
}
void
run (const char *start, int reps, const char *end, short diffs[])
{
mpz_t x, y;
int i;
mpz_init_set_str (x, start, 0);
mpz_init (y);
for (i = 0; i < reps; i++)
{
mpz_nextprime (y, x);
mpz_sub (x, y, x);
if (diffs != NULL && diffs[i] != mpz_get_ui (x))
{
gmp_printf ("diff list discrepancy\n");
abort ();
}
mpz_set (x, y);
}
mpz_set_str (y, end, 0);
if (mpz_cmp (x, y) != 0)
{
gmp_printf ("got %Zx\n", x);
gmp_printf ("want %Zx\n", y);
abort ();
}
mpz_clear (y);
mpz_clear (x);
}
extern short diff1[];
extern short diff3[];
extern short diff4[];
extern short diff5[];
int
main (int argc, char **argv)
{
int i;
int reps = 20;
gmp_randstate_ptr rands;
mpz_t bs, x, nxtp, ref_nxtp;
unsigned long size_range;
tests_start();
rands = RANDS;
run ("2", 1000, "0x1ef7", diff1);
run ("3", 1000 - 1, "0x1ef7", NULL);
run ("0x8a43866f5776ccd5b02186e90d28946aeb0ed914", 50,
"0x8a43866f5776ccd5b02186e90d28946aeb0eeec5", diff3);
run ("0x10000000000000000000000000000000000000", 50,
"0x100000000000000000000000000000000010ab", diff4);
run ("0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898d8b1b", 50,
"0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898da957", diff5);
mpz_init (bs);
mpz_init (x);
mpz_init (nxtp);
mpz_init (ref_nxtp);
if (argc == 2)
reps = atoi (argv[1]);
for (i = 0; i < reps; i++)
{
mpz_urandomb (bs, rands, 32);
size_range = mpz_get_ui (bs) % 8 + 2; /* 0..1024 bit operands */
mpz_urandomb (bs, rands, size_range);
mpz_rrandomb (x, rands, mpz_get_ui (bs));
/* gmp_printf ("%ld: %Zd\n", mpz_sizeinbase (x, 2), x); */
mpz_nextprime (nxtp, x);
refmpz_nextprime (ref_nxtp, x);
if (mpz_cmp (nxtp, ref_nxtp) != 0)
abort ();
}
mpz_clear (bs);
mpz_clear (x);
mpz_clear (nxtp);
mpz_clear (ref_nxtp);
tests_end ();
return 0;
}
short diff1[] =
{
1,2,2,4,2,4,2,4,6,2,6,4,2,4,6,6,
2,6,4,2,6,4,6,8,4,2,4,2,4,14,4,6,
2,10,2,6,6,4,6,6,2,10,2,4,2,12,12,4,
2,4,6,2,10,6,6,6,2,6,4,2,10,14,4,2,
4,14,6,10,2,4,6,8,6,6,4,6,8,4,8,10,
2,10,2,6,4,6,8,4,2,4,12,8,4,8,4,6,
12,2,18,6,10,6,6,2,6,10,6,6,2,6,6,4,
2,12,10,2,4,6,6,2,12,4,6,8,10,8,10,8,
6,6,4,8,6,4,8,4,14,10,12,2,10,2,4,2,
10,14,4,2,4,14,4,2,4,20,4,8,10,8,4,6,
6,14,4,6,6,8,6,12,4,6,2,10,2,6,10,2,
10,2,6,18,4,2,4,6,6,8,6,6,22,2,10,8,
10,6,6,8,12,4,6,6,2,6,12,10,18,2,4,6,
2,6,4,2,4,12,2,6,34,6,6,8,18,10,14,4,
2,4,6,8,4,2,6,12,10,2,4,2,4,6,12,12,
8,12,6,4,6,8,4,8,4,14,4,6,2,4,6,2,
6,10,20,6,4,2,24,4,2,10,12,2,10,8,6,6,
6,18,6,4,2,12,10,12,8,16,14,6,4,2,4,2,
10,12,6,6,18,2,16,2,22,6,8,6,4,2,4,8,
6,10,2,10,14,10,6,12,2,4,2,10,12,2,16,2,
6,4,2,10,8,18,24,4,6,8,16,2,4,8,16,2,
4,8,6,6,4,12,2,22,6,2,6,4,6,14,6,4,
2,6,4,6,12,6,6,14,4,6,12,8,6,4,26,18,
10,8,4,6,2,6,22,12,2,16,8,4,12,14,10,2,
4,8,6,6,4,2,4,6,8,4,2,6,10,2,10,8,
4,14,10,12,2,6,4,2,16,14,4,6,8,6,4,18,
8,10,6,6,8,10,12,14,4,6,6,2,28,2,10,8,
4,14,4,8,12,6,12,4,6,20,10,2,16,26,4,2,
12,6,4,12,6,8,4,8,22,2,4,2,12,28,2,6,
6,6,4,6,2,12,4,12,2,10,2,16,2,16,6,20,
16,8,4,2,4,2,22,8,12,6,10,2,4,6,2,6,
10,2,12,10,2,10,14,6,4,6,8,6,6,16,12,2,
4,14,6,4,8,10,8,6,6,22,6,2,10,14,4,6,
18,2,10,14,4,2,10,14,4,8,18,4,6,2,4,6,
2,12,4,20,22,12,2,4,6,6,2,6,22,2,6,16,
6,12,2,6,12,16,2,4,6,14,4,2,18,24,10,6,
2,10,2,10,2,10,6,2,10,2,10,6,8,30,10,2,
10,8,6,10,18,6,12,12,2,18,6,4,6,6,18,2,
10,14,6,4,2,4,24,2,12,6,16,8,6,6,18,16,
2,4,6,2,6,6,10,6,12,12,18,2,6,4,18,8,
24,4,2,4,6,2,12,4,14,30,10,6,12,14,6,10,
12,2,4,6,8,6,10,2,4,14,6,6,4,6,2,10,
2,16,12,8,18,4,6,12,2,6,6,6,28,6,14,4,
8,10,8,12,18,4,2,4,24,12,6,2,16,6,6,14,
10,14,4,30,6,6,6,8,6,4,2,12,6,4,2,6,
22,6,2,4,18,2,4,12,2,6,4,26,6,6,4,8,
10,32,16,2,6,4,2,4,2,10,14,6,4,8,10,6,
20,4,2,6,30,4,8,10,6,6,8,6,12,4,6,2,
6,4,6,2,10,2,16,6,20,4,12,14,28,6,20,4,
18,8,6,4,6,14,6,6,10,2,10,12,8,10,2,10,
8,12,10,24,2,4,8,6,4,8,18,10,6,6,2,6,
10,12,2,10,6,6,6,8,6,10,6,2,6,6,6,10,
8,24,6,22,2,18,4,8,10,30,8,18,4,2,10,6,
2,6,4,18,8,12,18,16,6,2,12,6,10,2,10,2,
6,10,14,4,24,2,16,2,10,2,10,20,4,2,4,8,
16,6,6,2,12,16,8,4,6,30,2,10,2,6,4,6,
6,8,6,4,12,6,8,12,4,14,12,10,24,6,12,6,
2,22,8,18,10,6,14,4,2,6,10,8,6,4,6,30,
14,10,2,12,10,2,16,2,18,24,18,6,16,18,6,2,
18,4,6,2,10,8,10,6,6,8,4,6,2,10,2,12,
4,6,6,2,12,4,14,18,4,6,20,4,8,6,4,8,
4,14,6,4,14,12,4,2,30,4,24,6,6,12,12,14,
6,4,2,4,18,6,12,8
};
short diff3[] =
{
33,32,136,116,24,22,104,114,76,278,238,162,36,44,388,134,
130,26,312,42,138,28,24,80,138,108,270,12,330,130,98,102,
162,34,36,170,90,34,14,6,24,66,154,218,70,132,188,88,
80,82
};
short diff4[] =
{
91,92,64,6,104,24,46,258,68,18,54,100,68,154,26,4,
38,142,168,42,18,26,286,104,136,116,40,2,28,110,52,78,
104,24,54,96,4,626,196,24,56,36,52,102,48,156,26,18,
42,40
};
short diff5[] =
{
268,120,320,184,396,2,94,108,20,318,274,14,64,122,220,108,
18,174,6,24,348,32,64,116,268,162,20,156,28,110,52,428,
196,14,262,30,194,120,300,66,268,12,428,370,212,198,192,130,
30,80
};