115 lines
3.2 KiB
C
115 lines
3.2 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) 2010 William Hart
|
|
Copyright (C) 2011 Fredrik Johansson
|
|
|
|
******************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <gmp.h>
|
|
#include "flint.h"
|
|
#include "nmod_poly.h"
|
|
#include "ulong_extras.h"
|
|
#include "fmpz.h"
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i, result = 1;
|
|
FLINT_TEST_INIT(state);
|
|
|
|
|
|
flint_printf("integral....");
|
|
fflush(stdout);
|
|
|
|
/* Check with derivative */
|
|
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
|
|
{
|
|
nmod_poly_t a, b, c;
|
|
ulong len;
|
|
mp_limb_t c0;
|
|
mp_limb_t n = n_randtest_prime(state, 0);
|
|
|
|
len = n_randint(state, 100);
|
|
len = FLINT_MIN(len, n - 1);
|
|
|
|
nmod_poly_init(a, n);
|
|
nmod_poly_init(b, n);
|
|
nmod_poly_init(c, n);
|
|
|
|
nmod_poly_randtest(a, state, len);
|
|
|
|
nmod_poly_integral(b, a);
|
|
c0 = nmod_poly_get_coeff_ui(b, 0);
|
|
nmod_poly_derivative(c, b);
|
|
|
|
result = (c0 == UWORD(0)) && nmod_poly_equal(a, c);
|
|
|
|
if (!result)
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
flint_printf("a->length = %wd, n = %wu\n", a->length, a->mod.n);
|
|
nmod_poly_print(a), flint_printf("\n\n");
|
|
nmod_poly_print(c), flint_printf("\n\n");
|
|
nmod_poly_print(b), flint_printf("\n\n");
|
|
abort();
|
|
}
|
|
|
|
nmod_poly_clear(a);
|
|
nmod_poly_clear(b);
|
|
nmod_poly_clear(c);
|
|
}
|
|
|
|
/* Check aliasing */
|
|
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
|
|
{
|
|
nmod_poly_t a, b;
|
|
mp_limb_t n = n_randtest_prime(state, 0);
|
|
|
|
nmod_poly_init(a, n);
|
|
nmod_poly_init(b, n);
|
|
nmod_poly_randtest(a, state, n_randint(state, 100));
|
|
|
|
nmod_poly_integral(b, a);
|
|
nmod_poly_integral(a, a);
|
|
|
|
result = nmod_poly_equal(a, b);
|
|
if (!result)
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
flint_printf("a->length = %wd, n = %wu\n", a->length, a->mod.n);
|
|
nmod_poly_print(a), flint_printf("\n\n");
|
|
nmod_poly_print(b), flint_printf("\n\n");
|
|
abort();
|
|
}
|
|
|
|
nmod_poly_clear(a);
|
|
nmod_poly_clear(b);
|
|
}
|
|
|
|
FLINT_TEST_CLEANUP(state);
|
|
|
|
flint_printf("PASS\n");
|
|
return 0;
|
|
}
|