arb/acb_poly/test/t-zeta_em_tail_bsplit.c
2014-06-13 22:08:25 +02:00

89 lines
2.7 KiB
C

/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
ARB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2013 Fredrik Johansson
******************************************************************************/
#include "acb_poly.h"
int main()
{
long iter;
flint_rand_t state;
printf("zeta_em_tail_bsplit....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 1000; iter++)
{
acb_t Na, s;
acb_ptr z1, z2, Nasx;
long i, M, len, prec;
prec = 2 + n_randint(state, 400);
len = 1 + n_randint(state, 30);
M = n_randint(state, 40);
acb_init(Na);
acb_init(s);
Nasx = _acb_vec_init(len);
z1 = _acb_vec_init(len);
z2 = _acb_vec_init(len);
acb_randtest(Na, state, prec, 4);
acb_randtest(s, state, prec, 4);
_acb_poly_acb_invpow_cpx(Nasx, Na, s, len, prec);
_acb_poly_zeta_em_tail_naive(z1, s, Na, Nasx, M, len, prec);
_acb_poly_zeta_em_tail_bsplit(z2, s, Na, Nasx, M, len, prec);
for (i = 0; i < len; i++)
{
if (!acb_overlaps(z1 + i, z2 + i))
{
printf("FAIL: overlap\n\n");
printf("iter = %ld\n", iter);
printf("prec = %ld, len = %ld, M = %ld\n", prec, len, M);
printf("s = "); acb_printd(s, prec / 3.33); printf("\n\n");
printf("Na = "); acb_printd(Na, prec / 3.33); printf("\n\n");
printf("z1 = "); acb_printd(z1 + i, prec / 3.33); printf("\n\n");
printf("z2 = "); acb_printd(z2 + i, prec / 3.33); printf("\n\n");
abort();
}
}
acb_clear(Na);
acb_clear(s);
_acb_vec_clear(z1, len);
_acb_vec_clear(z2, len);
}
flint_randclear(state);
flint_cleanup();
printf("PASS\n");
return EXIT_SUCCESS;
}