1/* mpq_init -- Make a new rational number with value 0/1.
2
3Copyright 1991, 1994, 1995, 2000, 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library.
6
7The GNU MP Library is free software; you can redistribute it and/or modify
8it under the terms of the GNU Lesser General Public License as published by
9the Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12The GNU MP Library is distributed in the hope that it will be useful, but
13WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15License for more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
19
20#include "gmp.h"
21#include "gmp-impl.h"
22
23void
24mpq_init (MP_RAT *x)
25{
26  x->_mp_num._mp_alloc = 1;
27  x->_mp_num._mp_d = (mp_ptr) (*__gmp_allocate_func) (BYTES_PER_MP_LIMB);
28  x->_mp_num._mp_size = 0;
29  x->_mp_den._mp_alloc = 1;
30  x->_mp_den._mp_d = (mp_ptr) (*__gmp_allocate_func) (BYTES_PER_MP_LIMB);
31  x->_mp_den._mp_d[0] = 1;
32  x->_mp_den._mp_size = 1;
33
34#ifdef __CHECKER__
35  /* let the low limb look initialized, for the benefit of mpz_get_ui etc */
36  x->_mp_num._mp_d[0] = 0;
37#endif
38}
39