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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 "fmpq.h"
#include "qqbar.h"
TEST_FUNCTION_START(qqbar_csc_pi, state)
{
slong iter;
for (iter = 0; iter < 200 * 0.1 * flint_test_multiplier(); iter++)
{
qqbar_t x;
arb_t z, w;
fmpq_t t;
slong p;
ulong q;
slong prec;
qqbar_init(x);
arb_init(z);
arb_init(w);
fmpq_init(t);
q = 1 + n_randint(state, 20);
p = n_randint(state, 1000);
p -= 500;
prec = 2 + n_randint(state, 1000);
fmpq_set_si(t, p, q);
arb_sin_pi_fmpq(w, t, prec);
arb_inv(w, w, prec);
if (arb_is_finite(w))
{
qqbar_csc_pi(x, p, q);
qqbar_get_arb(z, x, prec);
if (!arb_overlaps(z, w))
{
flint_printf("FAIL!\n");
flint_printf("x = "); qqbar_print(x); flint_printf("\n\n");
flint_printf("z = "); arb_printn(z, 200, 0); flint_printf("\n\n");
flint_printf("w = "); arb_printn(w, 200, 0); flint_printf("\n\n");
flint_printf("p, q = %wd %wu\n\n", p, q);
flint_abort();
}
}
qqbar_clear(x);
arb_clear(z);
arb_clear(w);
fmpq_clear(t);
}
TEST_FUNCTION_END(state);
}