118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*============================================================================
|
|
|
|
This file is part of FLINT.
|
|
|
|
FLINT 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
FLINT 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 FLINT; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
===============================================================================*/
|
|
/****************************************************************************
|
|
|
|
Copyright (C) 2011 Fredrik Johansson
|
|
|
|
*****************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <gmp.h>
|
|
#include "flint.h"
|
|
#include "fmpz.h"
|
|
#include "ulong_extras.h"
|
|
|
|
|
|
int main()
|
|
{
|
|
slong i, j;
|
|
int sign;
|
|
|
|
fmpz_t input;
|
|
fmpz_t result;
|
|
fmpz_t r1;
|
|
fmpz_t m1;
|
|
fmpz_t mprod;
|
|
ulong r2, m2;
|
|
|
|
FLINT_TEST_INIT(state);
|
|
|
|
flint_printf("CRT_ui....");
|
|
fflush(stdout);
|
|
|
|
fmpz_init(input);
|
|
fmpz_init(result);
|
|
fmpz_init(r1);
|
|
fmpz_init(m1);
|
|
fmpz_init(mprod);
|
|
|
|
|
|
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
|
|
{
|
|
slong nprimes;
|
|
|
|
m2 = n_randtest_prime(state, 0);
|
|
nprimes = 1 + n_randint(state, 4);
|
|
|
|
fmpz_set_ui(m1, UWORD(1));
|
|
for (j = 0; j < nprimes; )
|
|
{
|
|
ulong t = n_randtest_prime(state, 0);
|
|
if (t != m2)
|
|
{
|
|
fmpz_mul_ui(m1, m1, t);
|
|
j++;
|
|
}
|
|
}
|
|
|
|
fmpz_mul_ui(mprod, m1, m2);
|
|
|
|
sign = n_randint(state, 2);
|
|
|
|
if (sign)
|
|
fmpz_randtest_mod_signed(input, state, mprod);
|
|
else
|
|
fmpz_randtest_mod(input, state, mprod);
|
|
|
|
fmpz_mod(r1, input, m1);
|
|
r2 = fmpz_fdiv_ui(input, m2);
|
|
|
|
fmpz_CRT_ui(result, r1, m1, r2, m2, sign);
|
|
|
|
if (!fmpz_equal(result, input))
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
flint_printf("m1: "); fmpz_print(m1); flint_printf("\n");
|
|
flint_printf("m2: %wu\n", m2);
|
|
flint_printf("m1*m2: "); fmpz_print(mprod); flint_printf("\n");
|
|
flint_printf("input: "); fmpz_print(input); flint_printf("\n");
|
|
flint_printf("r1: "); fmpz_print(r1); flint_printf("\n");
|
|
flint_printf("r2: %wu\n", r2);
|
|
flint_printf("result: "); fmpz_print(result); flint_printf("\n");
|
|
flint_printf("%wd Equalness: %d\n", i, fmpz_equal(result, input));
|
|
flint_printf("\n");
|
|
abort();
|
|
}
|
|
}
|
|
|
|
fmpz_clear(input);
|
|
fmpz_clear(result);
|
|
fmpz_clear(r1);
|
|
fmpz_clear(m1);
|
|
fmpz_clear(mprod);
|
|
|
|
|
|
FLINT_TEST_CLEANUP(state);
|
|
|
|
flint_printf("PASS\n");
|
|
return 0;
|
|
}
|