/*=============================================================================

    This file is part of FLINT.

    FLINT 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.

    FLINT 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 FLINT; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

=============================================================================*/
/******************************************************************************

    Copyright (C) 2011 Sebastian Pancratz

******************************************************************************/

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

void fmpz_init_set_readonly(fmpz_t f, const mpz_t z)
{
    if (z->_mp_size == 1 && z->_mp_d[0] <= COEFF_MAX)
    {
        *f = z->_mp_d[0];
    }
    else if (z->_mp_size == -1 && z->_mp_d[0] <= COEFF_MAX)
    {
        *f = -(z->_mp_d[0]);
    }
    else if (z->_mp_size)
    {
        _fmpz_init_readonly_mpz(f, z);
    }
    else
    {
        *f = WORD(0);
    }
}