mirror of
https://github.com/vale981/arb
synced 2025-03-06 09:51:39 -05:00
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*=============================================================================
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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) 2013 Fredrik Johansson
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******************************************************************************/
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#include "arf.h"
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int main()
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{
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long iter;
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flint_rand_t state;
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printf("abs_bound_lt_2exp_fmpz....");
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fflush(stdout);
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flint_randinit(state);
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for (iter = 0; iter < 10000; iter++)
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{
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arf_t x, y;
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fmpz_t b;
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int cmp1, cmp2;
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arf_init(x);
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arf_init(y);
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fmpz_init(b);
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arf_randtest_not_zero(x, state, 2 + n_randint(state, 1000), 100);
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arf_abs_bound_lt_2exp_fmpz(b, x);
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arf_one(y);
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arf_mul_2exp_fmpz(y, y, b);
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cmp1 = (arf_cmpabs(x, y) < 0);
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arf_mul_2exp_si(y, y, -1);
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cmp2 = (arf_cmpabs(y, x) <= 0);
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arf_mul_2exp_si(y, y, 1);
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if (!cmp1 || !cmp2)
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{
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printf("FAIL\n\n");
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printf("x = "); arf_print(x); printf("\n\n");
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printf("y = "); arf_print(y); printf("\n\n");
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printf("b = "); fmpz_print(b); printf("\n\n");
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printf("cmp1 = %d, cmp2 = %d\n\n", cmp1, cmp2);
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abort();
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}
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arf_clear(x);
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arf_clear(y);
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fmpz_clear(b);
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}
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flint_randclear(state);
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flint_cleanup();
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printf("PASS\n");
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return EXIT_SUCCESS;
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}
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