pqc/external/flint-2.4.3/fmpz_vec/test/t-scalar_fdiv_q_fmpz.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
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, 2010 William Hart
Copyright (C) 2010 Sebastian Pancratz
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_vec.h"
#include "ulong_extras.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("scalar_fdiv_q_fmpz....");
fflush(stdout);
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz *a, *b, *c;
fmpz_t n;
mpz_t d, e, f, m;
slong i;
slong len = n_randint(state, 100);
fmpz_init(n);
fmpz_randtest_not_zero(n, state, 100);
if (n_randint(state, 2))
fmpz_neg(n, n);
a = _fmpz_vec_init(len);
b = _fmpz_vec_init(len);
c = _fmpz_vec_init(len);
_fmpz_vec_randtest(a, state, len, 200);
_fmpz_vec_set(b, a, len);
_fmpz_vec_scalar_fdiv_q_fmpz(c, a, len, n);
mpz_init(d);
mpz_init(e);
mpz_init(f);
mpz_init(m);
for (i = 0; i < len; i++)
{
fmpz_get_mpz(m, n);
fmpz_get_mpz(d, b + i);
mpz_fdiv_q(e, d, m);
fmpz_get_mpz(f, c + i);
result = (mpz_cmp(f, e) == 0);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("d = %Zd, m = %Zd, e = %Zd, f = %Zd\n", d, m, e, f);
abort();
}
}
_fmpz_vec_clear(a, len);
_fmpz_vec_clear(b, len);
_fmpz_vec_clear(c, len);
fmpz_clear(n);
mpz_clear(d);
mpz_clear(e);
mpz_clear(f);
mpz_clear(m);
}
/* Test aliasing of a and c */
for (i = 0; i < 1000 * flint_test_multiplier(); i++)
{
fmpz *a, *b;
fmpz_t n;
mpz_t d, e, f, m;
slong i;
slong len = n_randint(state, 100);
fmpz_init(n);
fmpz_randtest_not_zero(n, state, 100);
if (n_randint(state, 2))
fmpz_neg(n, n);
a = _fmpz_vec_init(len);
b = _fmpz_vec_init(len);
_fmpz_vec_randtest(a, state, len, 200);
_fmpz_vec_set(b, a, len);
_fmpz_vec_scalar_fdiv_q_fmpz(a, a, len, n);
mpz_init(d);
mpz_init(e);
mpz_init(f);
mpz_init(m);
for (i = 0; i < len; i++)
{
fmpz_get_mpz(m, n);
fmpz_get_mpz(d, b + i);
mpz_fdiv_q(e, d, m);
fmpz_get_mpz(f, a + i);
result = (mpz_cmp(f, e) == 0);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("d = %Zd, m = %Zd, e = %Zd, f = %Zd\n", d, m, e, f);
abort();
}
}
_fmpz_vec_clear(a, len);
_fmpz_vec_clear(b, len);
fmpz_clear(n);
mpz_clear(d);
mpz_clear(e);
mpz_clear(f);
mpz_clear(m);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}