92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
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/*=============================================================================
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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) 2010 William Hart
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Copyright (C) 2011 Fredrik Johansson
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******************************************************************************/
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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 "nmod_poly.h"
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#include "ulong_extras.h"
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#include "fmpz.h"
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int
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main(void)
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{
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int i, result = 1;
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FLINT_TEST_INIT(state);
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flint_printf("interpolate_nmod_vec_barycentric....");
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fflush(stdout);
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for (i = 0; i < 1000 * flint_test_multiplier(); i++)
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{
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nmod_poly_t P, Q;
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mp_ptr x, y;
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mp_limb_t mod;
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slong j, n, npoints;
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mod = n_randtest_prime(state, 0);
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npoints = n_randint(state, FLINT_MIN(100, mod));
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n = n_randint(state, npoints + 1);
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nmod_poly_init(P, mod);
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nmod_poly_init(Q, mod);
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x = _nmod_vec_init(npoints);
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y = _nmod_vec_init(npoints);
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nmod_poly_randtest(P, state, n);
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for (j = 0; j < npoints; j++)
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x[j] = j;
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nmod_poly_evaluate_nmod_vec(y, P, x, npoints);
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nmod_poly_interpolate_nmod_vec_barycentric(Q, x, y, npoints);
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result = nmod_poly_equal(P, Q);
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if (!result)
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{
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flint_printf("FAIL:\n");
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flint_printf("mod=%wu, n=%wd, npoints=%wd\n\n", mod, n, npoints);
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nmod_poly_print(P), flint_printf("\n\n");
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nmod_poly_print(Q), flint_printf("\n\n");
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abort();
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}
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nmod_poly_clear(P);
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nmod_poly_clear(Q);
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_nmod_vec_clear(x);
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_nmod_vec_clear(y);
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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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