pqc/external/flint-2.4.3/fmpz/test/t-sqrt.c
2014-05-24 23:16:06 +02:00

123 lines
2.8 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
******************************************************************************/
#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("sqrt....");
fflush(stdout);
/* Comparison with mpz routines */
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
fmpz_t f, g;
mpz_t mf, mf2, mg;
fmpz_init(f);
fmpz_init(g);
mpz_init(mf);
mpz_init(mf2);
mpz_init(mg);
fmpz_randtest(g, state, 200);
fmpz_abs(g, g);
fmpz_get_mpz(mg, g);
fmpz_sqrt(f, g);
mpz_sqrt(mf, mg);
fmpz_get_mpz(mf2, f);
result = (mpz_cmp(mf2, mf) == 0);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("mf = %Zd, mf2 = %Zd, mg = %Zd\n", mf, mf2, mg);
abort();
}
fmpz_clear(f);
fmpz_clear(g);
mpz_clear(mf);
mpz_clear(mf2);
mpz_clear(mg);
}
/* Check aliasing of f and g */
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
fmpz_t f;
mpz_t mf, mf2;
fmpz_init(f);
mpz_init(mf);
mpz_init(mf2);
fmpz_randtest(f, state, 200);
fmpz_abs(f, f);
fmpz_get_mpz(mf, f);
fmpz_sqrt(f, f);
mpz_sqrt(mf, mf);
fmpz_get_mpz(mf2, f);
result = (mpz_cmp(mf, mf2) == 0);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("mf = %Zd, mf2 = %Zd\n", mf, mf2);
abort();
}
fmpz_clear(f);
mpz_clear(mf);
mpz_clear(mf2);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return 0;
}