139 lines
3.4 KiB
C
139 lines
3.4 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) 2009 William Hart
|
|
Copyright (C) 2010 Sebastian Pancratz
|
|
Copyright (C) 2011 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("divexact2_uiui....");
|
|
fflush(stdout);
|
|
|
|
|
|
|
|
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
|
|
{
|
|
fmpz_t a, c;
|
|
mpz_t e, f, g;
|
|
ulong n, m;
|
|
|
|
fmpz_init(a);
|
|
fmpz_init(c);
|
|
mpz_init(e);
|
|
mpz_init(f);
|
|
mpz_init(g);
|
|
|
|
fmpz_randtest(a, state, 200);
|
|
n = n_randtest_not_zero(state);
|
|
m = n_randtest_not_zero(state);
|
|
|
|
fmpz_mul_ui(c, a, n);
|
|
fmpz_mul_ui(c, c, m);
|
|
|
|
fmpz_get_mpz(e, c);
|
|
|
|
fmpz_divexact2_uiui(a, c, n, m);
|
|
|
|
flint_mpz_divexact_ui(f, e, n);
|
|
flint_mpz_divexact_ui(f, f, m);
|
|
|
|
fmpz_get_mpz(g, a);
|
|
|
|
result = (mpz_cmp(f, g) == 0);
|
|
if (!result)
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
gmp_printf("n = %wu, m = %wu, e = %Zd, f = %Zd, g = %Zd\n",
|
|
n, m, e, f, g);
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(a);
|
|
fmpz_clear(c);
|
|
mpz_clear(e);
|
|
mpz_clear(f);
|
|
mpz_clear(g);
|
|
}
|
|
|
|
/* Test aliasing of a and c */
|
|
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
|
|
{
|
|
fmpz_t a, c;
|
|
mpz_t d, f, g;
|
|
ulong n, m;
|
|
|
|
fmpz_init(a);
|
|
fmpz_init(c);
|
|
mpz_init(d);
|
|
mpz_init(f);
|
|
mpz_init(g);
|
|
|
|
fmpz_randtest(a, state, 200);
|
|
n = n_randtest_not_zero(state);
|
|
m = n_randtest_not_zero(state);
|
|
fmpz_mul_ui(c, a, n);
|
|
fmpz_mul_ui(c, c, m);
|
|
|
|
fmpz_get_mpz(d, c);
|
|
|
|
fmpz_divexact2_uiui(c, c, n, m);
|
|
|
|
flint_mpz_divexact_ui(f, d, n);
|
|
flint_mpz_divexact_ui(f, f, m);
|
|
|
|
fmpz_get_mpz(g, c);
|
|
|
|
result = (mpz_cmp(f, g) == 0);
|
|
if (!result)
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
gmp_printf("d = %Zd, n = %wu, m = %wu, f = %Zd, g = %Zd\n",
|
|
d, n, m, f, g);
|
|
abort();
|
|
}
|
|
|
|
fmpz_clear(a);
|
|
fmpz_clear(c);
|
|
mpz_clear(d);
|
|
mpz_clear(f);
|
|
mpz_clear(g);
|
|
}
|
|
|
|
FLINT_TEST_CLEANUP(state);
|
|
|
|
flint_printf("PASS\n");
|
|
return 0;
|
|
}
|