1 /*
2     Copyright (C) 2011 Sebastian Pancratz
3 
4     This file is part of FLINT.
5 
6     FLINT is free software: you can redistribute it and/or modify it under
7     the terms of the GNU Lesser General Public License (LGPL) as published
8     by the Free Software Foundation; either version 2.1 of the License, or
9     (at your option) any later version.  See <http://www.gnu.org/licenses/>.
10 */
11 
12 #include <gmp.h>
13 #include "flint.h"
14 #include "fmpz.h"
15 
fmpz_init_set_readonly(fmpz_t f,const mpz_t z)16 void fmpz_init_set_readonly(fmpz_t f, const mpz_t z)
17 {
18     if (z->_mp_size == 1 && z->_mp_d[0] <= COEFF_MAX)
19     {
20         *f = z->_mp_d[0];
21     }
22     else if (z->_mp_size == -1 && z->_mp_d[0] <= COEFF_MAX)
23     {
24         *f = -(z->_mp_d[0]);
25     }
26     else if (z->_mp_size)
27     {
28         _fmpz_init_readonly_mpz(f, z);
29     }
30     else
31     {
32         *f = WORD(0);
33     }
34 }
35 
36