124 lines
3.3 KiB
C
124 lines
3.3 KiB
C
|
/*=============================================================================
|
||
|
|
|
||
|
|
This file is part of FLINT.
|
||
|
|
|
||
|
|
FLINT is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 2 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
FLINT is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with FLINT; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
|
||
|
|
=============================================================================*/
|
||
|
|
/******************************************************************************
|
||
|
|
|
||
|
|
Copyright (C) 2012 Fredrik Johansson
|
||
|
|
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <gmp.h>
|
||
|
|
#include "flint.h"
|
||
|
|
#include "ulong_extras.h"
|
||
|
|
#include "fmpz.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
main(void)
|
||
|
|
{
|
||
|
|
int i, result;
|
||
|
|
FLINT_TEST_INIT(state);
|
||
|
|
|
||
|
|
flint_printf("rfac_ui... ");
|
||
|
|
fflush(stdout);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/* Check aliasing */
|
||
|
|
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
|
||
|
|
{
|
||
|
|
fmpz_t x, r;
|
||
|
|
ulong a;
|
||
|
|
|
||
|
|
fmpz_init(x);
|
||
|
|
fmpz_init(r);
|
||
|
|
|
||
|
|
fmpz_randtest(x, state, 1 + n_randint(state, 200));
|
||
|
|
a = n_randint(state, 100);
|
||
|
|
|
||
|
|
fmpz_rfac_ui(r, x, a);
|
||
|
|
fmpz_rfac_ui(x, x, a);
|
||
|
|
|
||
|
|
result = fmpz_equal(r, x);
|
||
|
|
|
||
|
|
if (!result)
|
||
|
|
{
|
||
|
|
flint_printf("FAIL (aliasing)\n\n");
|
||
|
|
flint_printf("x: "); fmpz_print(x); flint_printf("\n\n");
|
||
|
|
flint_printf("a = %wu\n\n", a);
|
||
|
|
flint_printf("r: "); fmpz_print(r); flint_printf("\n\n");
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
fmpz_clear(x);
|
||
|
|
fmpz_clear(r);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check rf(x,a) * rf(x+a,b) = rf(x,a+b) */
|
||
|
|
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
|
||
|
|
{
|
||
|
|
fmpz_t x, xa, r1, r2, r1r2, r3;
|
||
|
|
ulong a, b;
|
||
|
|
|
||
|
|
fmpz_init(x);
|
||
|
|
fmpz_init(xa);
|
||
|
|
fmpz_init(r1);
|
||
|
|
fmpz_init(r2);
|
||
|
|
fmpz_init(r1r2);
|
||
|
|
fmpz_init(r3);
|
||
|
|
|
||
|
|
fmpz_randtest(x, state, 1 + n_randint(state, 200));
|
||
|
|
a = n_randint(state, 100);
|
||
|
|
b = n_randint(state, 100);
|
||
|
|
fmpz_add_ui(xa, x, a);
|
||
|
|
|
||
|
|
fmpz_rfac_ui(r1, x, a);
|
||
|
|
fmpz_rfac_ui(r2, xa, b);
|
||
|
|
fmpz_rfac_ui(r3, x, a+b);
|
||
|
|
|
||
|
|
fmpz_mul(r1r2, r1, r2);
|
||
|
|
|
||
|
|
result = fmpz_equal(r1r2, r3);
|
||
|
|
|
||
|
|
if (!result)
|
||
|
|
{
|
||
|
|
flint_printf("FAIL\n\n");
|
||
|
|
flint_printf("x: "); fmpz_print(x); flint_printf("\n\n");
|
||
|
|
flint_printf("a = %wu, b = %wu\n\n", a, b);
|
||
|
|
flint_printf("rf(x,a): "); fmpz_print(r1); flint_printf("\n\n");
|
||
|
|
flint_printf("rf(x+a,b): "); fmpz_print(r2); flint_printf("\n\n");
|
||
|
|
flint_printf("rf(x,a+b): "); fmpz_print(r3); flint_printf("\n\n");
|
||
|
|
abort();
|
||
|
|
}
|
||
|
|
|
||
|
|
fmpz_clear(x);
|
||
|
|
fmpz_clear(xa);
|
||
|
|
fmpz_clear(r1);
|
||
|
|
fmpz_clear(r2);
|
||
|
|
fmpz_clear(r1r2);
|
||
|
|
fmpz_clear(r3);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
flint_printf("PASS\n");
|
||
|
|
FLINT_TEST_CLEANUP(state);
|
||
|
|
return EXIT_SUCCESS;
|
||
|
|
}
|