1/* mpq_swap (U, V) -- Swap U and V.
2
3Copyright 1997, 1998, 2000, 2001 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_swap (mpq_ptr u, mpq_ptr v) __GMP_NOTHROW
25{
26  mp_ptr up, vp;
27  mp_size_t usize, vsize;
28  mp_size_t ualloc, valloc;
29
30  ualloc = u->_mp_num._mp_alloc;
31  valloc = v->_mp_num._mp_alloc;
32  v->_mp_num._mp_alloc = ualloc;
33  u->_mp_num._mp_alloc = valloc;
34
35  usize = u->_mp_num._mp_size;
36  vsize = v->_mp_num._mp_size;
37  v->_mp_num._mp_size = usize;
38  u->_mp_num._mp_size = vsize;
39
40  up = u->_mp_num._mp_d;
41  vp = v->_mp_num._mp_d;
42  v->_mp_num._mp_d = up;
43  u->_mp_num._mp_d = vp;
44
45
46  ualloc = u->_mp_den._mp_alloc;
47  valloc = v->_mp_den._mp_alloc;
48  v->_mp_den._mp_alloc = ualloc;
49  u->_mp_den._mp_alloc = valloc;
50
51  usize = u->_mp_den._mp_size;
52  vsize = v->_mp_den._mp_size;
53  v->_mp_den._mp_size = usize;
54  u->_mp_den._mp_size = vsize;
55
56  up = u->_mp_den._mp_d;
57  vp = v->_mp_den._mp_d;
58  v->_mp_den._mp_d = up;
59  u->_mp_den._mp_d = vp;
60}
61