arb/bernoulli/test/t-fmprb_ui.c
2013-07-30 13:06:08 +02:00

86 lines
2.5 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) 2012, 2013 Fredrik Johansson
******************************************************************************/
#include <stdio.h>
#include "bernoulli.h"
int main()
{
long iter;
flint_rand_t state;
printf("fmprb_ui....");
fflush(stdout);
flint_randinit(state);
for (iter = 0; iter < 10000; iter++)
{
fmprb_t b1, b2;
ulong n;
long prec1, prec2, acc1, acc2;
n = n_randint(state, 10000);
prec1 = 2 + n_randint(state, 10000);
prec2 = prec1 + 100;
fmprb_init(b1);
fmprb_init(b2);
bernoulli_fmprb_ui(b1, n, prec1);
bernoulli_fmprb_ui(b2, n, prec2);
if (!fmprb_overlaps(b1, b2))
{
printf("FAIL: overlap\n\n");
printf("n = %lu\n\n", n);
printf("b1 = "); fmprb_print(b1); printf("\n\n");
printf("b2 = "); fmprb_print(b2); printf("\n\n");
abort();
}
acc1 = fmprb_rel_accuracy_bits(b1);
acc2 = fmprb_rel_accuracy_bits(b2);
if (acc1 < prec1 - 2 || acc2 < prec2 - 2)
{
printf("FAIL: poor accuracy\n\n");
printf("prec1 = %ld\n", prec1);
printf("prec2 = %ld\n", prec2);
printf("b1 = "); fmprb_printd(b1, prec1 / 3.33); printf("\n\n");
printf("b2 = "); fmprb_printd(b2, prec2 / 3.33); printf("\n\n");
abort();
}
fmprb_clear(b1);
fmprb_clear(b2);
}
flint_randclear(state);
flint_cleanup();
printf("PASS\n");
return EXIT_SUCCESS;
}