124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2011 Fredrik Johansson
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Copyright (C) 2012 Lina Kulakova
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Copyright (C) 2013 Mike Hansen
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******************************************************************************/
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#ifdef T
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#include "templates.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmp.h>
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#include "flint.h"
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#include "fmpz_vec.h"
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#include "ulong_extras.h"
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int
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main(void)
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{
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int iter;
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FLINT_TEST_INIT(state);
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flint_printf("is_squarefree....");
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fflush(stdout);
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for (iter = 0; iter < 200 * flint_test_multiplier(); iter++)
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{
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TEMPLATE(T, ctx_t) ctx;
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TEMPLATE(T, poly_t) poly, Q, R, t;
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fmpz_t x;
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slong i, num_factors, exp, max_exp;
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int v, result;
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TEMPLATE(T, ctx_randtest) (ctx, state);
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TEMPLATE(T, poly_init) (poly, ctx);
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TEMPLATE(T, poly_init) (t, ctx);
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TEMPLATE(T, poly_init) (Q, ctx);
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TEMPLATE(T, poly_init) (R, ctx);
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fmpz_init(x);
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fmpz_randtest_mod(x, state, TEMPLATE(T, ctx_prime) (ctx));
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TEMPLATE(T, poly_set_coeff_fmpz) (poly, 0, x, ctx);
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num_factors = n_randint(state, 5);
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max_exp = 0;
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for (i = 0; i < num_factors; i++)
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{
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do
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{
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TEMPLATE(T, poly_randtest) (t, state, n_randint(state, 10),
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ctx);
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} while (!TEMPLATE(T, poly_is_irreducible) (t, ctx)
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|| (TEMPLATE(T, poly_length) (t, ctx) < 2));
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exp = n_randint(state, 4) + 1;
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if (n_randint(state, 2) == 0)
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exp = 1;
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TEMPLATE(T, poly_divrem) (Q, R, poly, t, ctx);
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if (!TEMPLATE(T, poly_is_zero) (R, ctx))
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{
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TEMPLATE(T, poly_pow) (t, t, exp, ctx);
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TEMPLATE(T, poly_mul) (poly, poly, t, ctx);
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max_exp = FLINT_MAX(exp, max_exp);
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}
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}
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v = TEMPLATE(T, poly_is_squarefree) (poly, ctx);
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if (v == 1)
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result = (max_exp <= 1 && !TEMPLATE(T, poly_is_zero) (poly, ctx));
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else
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result = (max_exp > 1 || TEMPLATE(T, poly_is_zero) (poly, ctx));
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if (!result)
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{
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flint_printf("FAIL: ");
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TEMPLATE(T, ctx_print) (ctx);
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flint_printf(" %wd, %d\n", max_exp, v);
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TEMPLATE(T, poly_print) (poly, ctx);
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flint_printf("\n");
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abort();
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}
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TEMPLATE(T, poly_clear) (poly, ctx);
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TEMPLATE(T, poly_clear) (t, ctx);
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TEMPLATE(T, poly_clear) (Q, ctx);
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TEMPLATE(T, poly_clear) (R, ctx);
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TEMPLATE(T, ctx_clear) (ctx);
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}
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return 0;
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}
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#endif
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