86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/*=============================================================================
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This file is part of FLINT.
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FLINT 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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FLINT 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 FLINT; 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) 2010 Fredrik Johansson
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******************************************************************************/
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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 "flint.h"
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#include "mpn_extras.h"
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#include "ulong_extras.h"
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void test_exact(int d)
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{
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int i, j;
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ulong exp, exact;
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mpz_t a, a2, b, c;
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mpz_init(a);
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mpz_init(a2);
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mpz_init(b);
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mpz_init(c);
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for (i=0; i<100; i++)
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{
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for (j=1; j<100; j++)
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{
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exact = i / j;
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flint_mpz_set_ui(a, d);
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flint_mpz_pow_ui(a, a, i);
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mpz_set(a2, a);
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flint_mpz_set_ui(b, d);
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flint_mpz_pow_ui(b, b, j);
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a->_mp_size = flint_mpn_remove_power_ascending(a->_mp_d, a->_mp_size,
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b->_mp_d, b->_mp_size, &exp);
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flint_mpz_pow_ui(b, b, exact);
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mpz_tdiv_q(c, a2, b);
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if (exp != i/j || mpz_cmp(a, c))
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{
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gmp_printf("%d^%d / %d^%d\n", d, i, d, j);
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abort();
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}
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}
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}
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mpz_clear(a);
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mpz_clear(a2);
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mpz_clear(b);
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mpz_clear(c);
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}
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int main(void)
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{
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FLINT_TEST_INIT(state);
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flint_printf("remove_power....");
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fflush(stdout);
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test_exact(3);
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test_exact(10);
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test_exact(7429);
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FLINT_TEST_CLEANUP(state);
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flint_printf("PASS\n");
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return 0;
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}
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