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/*
Copyright (C) 2013 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 "arf.h"
TEST_FUNCTION_START(arf_abs_bound_lt_2exp_si, state)
{
slong iter;
for (iter = 0; iter < 10000 * 0.1 * flint_test_multiplier(); iter++)
{
arf_t x;
fmpz_t b;
slong c;
arf_init(x);
fmpz_init(b);
if (iter < 5)
{
arf_set_ui_2exp_si(x, 1, LONG_MIN + 2);
arf_mul_2exp_si(x, x, -iter);
}
else if (iter < 10)
{
arf_set_ui_2exp_si(x, 1, WORD_MAX - 2);
arf_mul_2exp_si(x, x, iter - 5);
}
else
{
arf_randtest_special(x, state, 2 + n_randint(state, 1000), 100);
}
arf_abs_bound_lt_2exp_fmpz(b, x);
c = arf_abs_bound_lt_2exp_si(x);
if (c == -ARF_PREC_EXACT)
{
if (!(arf_is_zero(x) || fmpz_cmp_si(b, -ARF_PREC_EXACT) <= 0))
{
flint_printf("FAIL (small/zero)\n\n");
flint_abort();
}
}
else if (c == ARF_PREC_EXACT)
{
if (!(arf_is_inf(x) || arf_is_nan(x) ||
fmpz_cmp_si(b, ARF_PREC_EXACT) >= 0))
{
flint_printf("FAIL (large/inf/nan)\n\n");
flint_abort();
}
}
else
{
if (fmpz_cmp_si(b, c) != 0)
{
flint_printf("FAIL (normal)\n\n");
flint_printf("x = "); arf_print(x); flint_printf("\n\n");
flint_printf("b = "); fmpz_print(b); flint_printf("\n\n");
flint_printf("c = %wd\n\n", c);
flint_abort();
}
}
arf_clear(x);
fmpz_clear(b);
}
TEST_FUNCTION_END(state);
}