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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_sqrtrem, state)
{
int i, result;
/* Comparison with mpz routines */
for (i = 0; i < 10000 * flint_test_multiplier(); i++)
{
fmpz_t f, r, g;
mpz_t mf, mf2, mr, mg;
int aliasing;
fmpz_init(f);
fmpz_init(r);
fmpz_init(g);
mpz_init(mf);
mpz_init(mf2);
mpz_init(mr);
mpz_init(mg);
fmpz_randtest(g, state, 200);
fmpz_abs(g, g);
fmpz_get_mpz(mg, g);
aliasing = n_randint(state, 3);
if (aliasing == 0)
{
fmpz_sqrtrem(f, r, g);
}
else if (aliasing == 1)
{
fmpz_set(f, g);
fmpz_sqrtrem(f, r, f);
}
else
{
fmpz_set(r, g);
fmpz_sqrtrem(f, r, r);
}
mpz_sqrtrem(mf, mr, mg);
fmpz_get_mpz(mf2, f);
result = (mpz_cmp(mf2, mf) == 0) && _fmpz_is_canonical(f) && _fmpz_is_canonical(r);
if (!result)
{
flint_printf("FAIL:\n");
gmp_printf("mf = %Zd, mf2 = %Zd, mr = %Zd, mg = %Zd\n", mf, mf2,
mr, mg);
fflush(stdout);
flint_abort();
}
fmpz_clear(f);
fmpz_clear(r);
fmpz_clear(g);
mpz_clear(mf);
mpz_clear(mf2);
mpz_clear(mr);
mpz_clear(mg);
}
TEST_FUNCTION_END(state);
}