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/* test mpz_divisible_2exp_p */
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/*
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Copyright 2001 Free Software Foundation, Inc.
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This file is part of the GNU MP Library test suite.
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The GNU MP Library test suite is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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The GNU MP Library test suite is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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Public License for more details.
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You should have received a copy of the GNU General Public License along with
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the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
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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 "gmp-impl.h"
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#include "tests.h"
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void
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check_one (mpz_srcptr a, unsigned long d, int want)
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{
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int got;
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got = (mpz_divisible_2exp_p (a, d) != 0);
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if (want != got)
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{
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printf ("mpz_divisible_2exp_p wrong\n");
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printf (" expected %d got %d\n", want, got);
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mpz_trace (" a", a);
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printf (" d=%lu\n", d);
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mp_trace_base = -16;
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mpz_trace (" a", a);
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printf (" d=0x%lX\n", d);
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abort ();
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}
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}
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void
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check_data (void)
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{
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static const struct {
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const char *a;
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unsigned long d;
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int want;
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} data[] = {
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{ "0", 0, 1 },
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{ "0", 1, 1 },
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{ "0", 2, 1 },
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{ "0", 3, 1 },
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{ "1", 0, 1 },
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{ "1", 1, 0 },
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{ "1", 2, 0 },
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{ "1", 3, 0 },
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{ "1", 10000, 0 },
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{ "4", 0, 1 },
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{ "4", 1, 1 },
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{ "4", 2, 1 },
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{ "4", 3, 0 },
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{ "4", 4, 0 },
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{ "4", 10000, 0 },
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{ "0x80000000", 31, 1 },
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{ "0x80000000", 32, 0 },
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{ "0x80000000", 64, 0 },
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{ "0x100000000", 32, 1 },
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{ "0x100000000", 33, 0 },
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{ "0x100000000", 64, 0 },
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{ "0x8000000000000000", 63, 1 },
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{ "0x8000000000000000", 64, 0 },
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{ "0x8000000000000000", 128, 0 },
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{ "0x10000000000000000", 64, 1 },
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{ "0x10000000000000000", 65, 0 },
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{ "0x10000000000000000", 128, 0 },
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{ "0x10000000000000000", 256, 0 },
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{ "0x10000000000000000100000000", 32, 1 },
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{ "0x10000000000000000100000000", 33, 0 },
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{ "0x10000000000000000100000000", 64, 0 },
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{ "0x1000000000000000010000000000000000", 64, 1 },
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{ "0x1000000000000000010000000000000000", 65, 0 },
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{ "0x1000000000000000010000000000000000", 128, 0 },
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{ "0x1000000000000000010000000000000000", 256, 0 },
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{ "0x1000000000000000010000000000000000", 1024, 0 },
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};
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mpz_t a, d;
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int i;
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mpz_init (a);
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mpz_init (d);
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for (i = 0; i < numberof (data); i++)
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{
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mpz_set_str_or_abort (a, data[i].a, 0);
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check_one (a, data[i].d, data[i].want);
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mpz_neg (a, a);
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check_one (a, data[i].d, data[i].want);
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}
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mpz_clear (a);
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mpz_clear (d);
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}
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int
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main (int argc, char *argv[])
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{
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tests_start ();
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check_data ();
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tests_end ();
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exit (0);
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}
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