95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*=============================================================================
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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) 2012 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 "ulong_extras.h"
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#include "fmpz.h"
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int
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main(void)
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{
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int i, result;
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FLINT_TEST_INIT(state);
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flint_printf("rfac_uiui... ");
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fflush(stdout);
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/* Check rf(x,a) * rf(x+a,b) = rf(x,a+b) */
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for (i = 0; i < 1000 * flint_test_multiplier(); i++)
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{
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fmpz_t xa, r1, r2, r1r2, r3;
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mp_limb_t x;
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ulong a, b;
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fmpz_init(xa);
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fmpz_init(r1);
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fmpz_init(r2);
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fmpz_init(r1r2);
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fmpz_init(r3);
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x = n_randlimb(state);
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a = n_randint(state, 100);
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b = n_randint(state, 100);
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fmpz_set_ui(xa, x);
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fmpz_add_ui(xa, xa, a);
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fmpz_rfac_uiui(r1, x, a);
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fmpz_rfac_ui(r2, xa, b);
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fmpz_rfac_uiui(r3, x, a+b);
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fmpz_mul(r1r2, r1, r2);
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result = fmpz_equal(r1r2, r3);
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if (!result)
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{
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flint_printf("FAIL\n\n");
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flint_printf("x: %wu", x); flint_printf("\n\n");
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flint_printf("a = %wu, b = %wu\n\n", a, b);
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flint_printf("rf(x,a): "); fmpz_print(r1); flint_printf("\n\n");
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flint_printf("rf(x+a,b): "); fmpz_print(r2); flint_printf("\n\n");
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flint_printf("rf(x,a+b): "); fmpz_print(r3); flint_printf("\n\n");
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abort();
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}
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fmpz_clear(xa);
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fmpz_clear(r1);
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fmpz_clear(r2);
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fmpz_clear(r1r2);
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fmpz_clear(r3);
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}
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flint_printf("PASS\n");
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FLINT_TEST_CLEANUP(state);
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return EXIT_SUCCESS;
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}
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