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/*
Copyright (C) 2009 William Hart
Copyright (C) 2010 Sebastian Pancratz
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "test_helpers.h"
#include "ulong_extras.h"
#include "fmpz.h"
TEST_FUNCTION_START(fmpz_sqrt, state)
{
int i, result;
/* 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);
if (n_randint(state, 2))
{
fmpz_sqrt(f, g);
}
else /* test aliasing */
{
fmpz_set(f, g);
fmpz_sqrt(f, f);
}
fmpz_sqrt(f, g);
mpz_sqrt(mf, mg);
fmpz_get_mpz(mf2, f);
result = (mpz_cmp(mf2, mf) == 0) && _fmpz_is_canonical(f);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("mf = %Zd, mf2 = %Zd, mg = %Zd\n", mf, mf2, mg);
fflush(stdout);
flint_abort();
}
fmpz_clear(f);
fmpz_clear(g);
mpz_clear(mf);
mpz_clear(mf2);
mpz_clear(mg);
}
TEST_FUNCTION_END(state);
}