mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
6bf072eb59
This will allow us to not loose the julia session on error. See also https://github.com/wbhart/flint2/pull/243
87 lines
2 KiB
C
87 lines
2 KiB
C
/*
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Copyright (C) 2013 Fredrik Johansson
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "arb_poly.h"
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int main()
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{
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slong iter;
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flint_rand_t state;
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flint_printf("swinnerton_dyer_ui....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 50 * arb_test_multiplier(); iter++)
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{
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arb_poly_t a, b;
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arb_t x, y;
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fmpz_poly_t c;
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slong i, n, prec;
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arb_poly_init(a);
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arb_poly_init(b);
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fmpz_poly_init(c);
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arb_init(x);
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arb_init(y);
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n = n_randint(state, 10);
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arb_poly_swinnerton_dyer_ui(a, n, 0);
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prec = 2 + n_randint(state, 10000);
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if (!arb_poly_get_unique_fmpz_poly(c, a))
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{
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flint_printf("FAIL (uniqueness)\n\n");
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flint_abort();
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}
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arb_poly_set_fmpz_poly(b, c, prec);
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arb_zero(x);
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for (i = 0; i < n; i++)
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{
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arb_sqrt_ui(y, n_nth_prime(i + 1), prec);
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if (n_randint(state, 2))
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arb_add(x, x, y, prec);
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else
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arb_sub(x, x, y, prec);
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}
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arb_poly_evaluate(y, b, x, prec);
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if (!arb_contains_zero(y))
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{
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flint_printf("FAIL (containment)\n\n");
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flint_abort();
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}
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arb_poly_swinnerton_dyer_ui(b, n, 2 + n_randint(state, 1000));
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if (!arb_poly_overlaps(a, b))
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{
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flint_printf("FAIL (overlap)\n\n");
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flint_abort();
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}
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arb_poly_clear(a);
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arb_poly_clear(b);
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fmpz_poly_clear(c);
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arb_clear(x);
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arb_clear(y);
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}
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flint_randclear(state);
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flint_cleanup();
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flint_printf("PASS\n");
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return EXIT_SUCCESS;
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}
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