/*
    Copyright (C) 2011 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 2.1 of the License, or
    (at your option) any later version.  See <https://www.gnu.org/licenses/>.
*/

#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include <mpfr.h>
#include "flint.h"
#include "arith.h"
#include "fmpz_vec.h"
#include "ulong_extras.h"

int main(void)
{
    slong i, j;

    FLINT_TEST_INIT(state);

    flint_printf("bell_number_nmod....");
    fflush(stdout);    

    for (i = 0; i < 10; i++)
    {
        mp_ptr b;
        slong n;
        nmod_t mod;
        mp_limb_t p;

        n = n_randint(state, 1000);
        p = n_randtest_prime(state, 0);

        nmod_init(&mod, p);

        b = _nmod_vec_init(n + 1);
        arith_bell_number_nmod_vec(b, n + 1, mod);

        for (j = 0; j <= n; j++)
        {
            mp_limb_t u = arith_bell_number_nmod(j, mod);

            if (u != b[j])
            {
                flint_printf("FAIL: p = %wu, i = %wd\n", p, j);
                abort();
            }
        }

        _nmod_vec_clear(b);
    }

    FLINT_TEST_CLEANUP(state);
    
    flint_printf("PASS\n");
    return 0;
}