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/*
Copyright (C) 2020 Fredrik Johansson
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 "qqbar.h"
TEST_FUNCTION_START(qqbar_guess, state)
{
slong iter;
for (iter = 0; iter < 200 * 0.1 * flint_test_multiplier(); iter++)
{
qqbar_t x, y;
acb_t z;
slong prec, max_deg, max_bits;
qqbar_init(x);
qqbar_init(y);
acb_init(z);
if (n_randint(state, 2))
qqbar_randtest(x, state, 4, 100);
else
qqbar_randtest(x, state, 12, 10);
max_deg = qqbar_degree(x) + n_randint(state, 2);
max_bits = qqbar_height_bits(x) + n_randint(state, 100);
for (prec = 64; ; prec *= 2)
{
qqbar_get_acb(z, x, prec);
if (qqbar_guess(y, z, max_deg, max_bits, 0, prec) && qqbar_equal(x, y))
break;
if (prec > 10000)
{
flint_printf("FAIL!\n");
flint_printf("x = "); qqbar_print(x); flint_printf("\n\n");
flint_printf("prec = %wd\n\n", prec);
flint_abort();
}
}
qqbar_clear(x);
qqbar_clear(y);
acb_clear(z);
}
TEST_FUNCTION_END(state);
}