mirror of
https://github.com/vale981/arb
synced 2025-03-05 17:31:38 -05:00
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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Copyright (C) 2016 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 "acb.h"
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int main()
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{
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slong len;
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flint_rand_t state;
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flint_printf("vec_unit_roots....");
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fflush(stdout);
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flint_randinit(state);
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for (len = 0; len < 100; len++)
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{
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slong iter;
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for (iter = 0; iter < 6; iter++)
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{
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acb_ptr vec;
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fmpq_t q;
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acb_t t;
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slong k;
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slong prec = 53;
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slong order;
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if (iter == 0)
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order = len;
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else if (iter == 1)
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order = -len;
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else if (iter == 2)
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order = 2 * len;
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else if (iter == 3)
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order = - 4 * len;
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else if (iter == 4)
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order = -1 - n_randint(state, 3 * len);
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else
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order = 1 + n_randint(state, 3 * len);
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vec = _acb_vec_init(len);
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acb_init(t);
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fmpq_init(q);
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_acb_vec_unit_roots(vec, order, len, prec);
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for (k = 0; k < len; k++)
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{
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if (order < 0)
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fmpq_set_si(q, -2 * k, -order);
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else
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fmpq_set_si(q, 2 * k, order);
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arb_sin_cos_pi_fmpq(acb_imagref(t), acb_realref(t), q, prec);
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if (!acb_overlaps(vec + k, t))
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{
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flint_printf("FAIL: overlap\n\n");
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flint_printf("n = %wu order = %wd k = %wd\n\n", len, order, k);
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flint_printf("vec = "); acb_printn(vec + k, 30, 0); flint_printf("\n\n");
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flint_printf("t = "); acb_printn(t, 30, 0); flint_printf("\n\n");
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flint_abort();
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}
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}
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_acb_vec_clear(vec, len);
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acb_clear(t);
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fmpq_clear(q);
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}
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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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