/*
    Copyright (C) 2011 Sebastian Pancratz

    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 <gmp.h>
#include "flint.h"
#include "ulong_extras.h"
#include "fmpz.h"

int fmpz_divisible_si(const fmpz_t x, slong p)
{
    fmpz y = *x;

    if (y == WORD(0))
    {
        return 1;
    }

    if (!COEFF_IS_MPZ(y))
    {
        return !(y % p);
    }
    else
    {
        return flint_mpz_divisible_ui_p(COEFF_TO_PTR(y), p);
    }
}