mirror of
https://github.com/vale981/arb
synced 2025-03-06 01:41:39 -05:00
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
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/*=============================================================================
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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
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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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ARB 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 ARB; 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) 2016 Fredrik Johansson
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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 iter;
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flint_rand_t state;
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flint_printf("csgn....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 1000; iter++)
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{
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acb_t x, y;
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arb_t a;
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slong prec;
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acb_init(x);
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acb_init(y);
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arb_init(a);
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acb_randtest_special(x, state, 1 + n_randint(state, 200), 2 + n_randint(state, 100));
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arb_randtest_special(a, state, 1 + n_randint(state, 200), 2 + n_randint(state, 100));
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prec = 2 + n_randint(state, 200);
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acb_csgn(a, x);
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if (acb_is_zero(x))
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{
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acb_zero(y);
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}
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else
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{
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acb_mul(y, x, x, prec);
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acb_sqrt(y, y, prec);
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acb_div(y, y, x, prec);
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}
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if (!arb_contains(acb_realref(y), a))
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{
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flint_printf("FAIL: overlap\n\n");
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flint_printf("x = "); acb_printd(x, 15); flint_printf("\n\n");
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flint_printf("a = "); arb_printd(a, 15); flint_printf("\n\n");
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flint_printf("y = "); acb_printd(y, 15); flint_printf("\n\n");
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abort();
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}
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acb_clear(x);
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acb_clear(y);
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arb_clear(a);
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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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