1 /* _mpq_cmp_si -- compare mpq and long/ulong fraction.
3 Copyright 2001 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or (at your
10 option) any later version.
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
24 /* Something like mpq_cmpabs_ui would be more useful for the neg/neg case,
25 and perhaps a version accepting a parameter to reverse the test, to make
26 it a tail call here. */
29 _mpq_cmp_si (mpq_srcptr q
, long n
, unsigned long d
)
31 /* need canonical sign to get right result */
32 ASSERT (q
->_mp_den
._mp_size
> 0);
34 if (q
->_mp_num
._mp_size
>= 0)
37 return _mpq_cmp_ui (q
, n
, d
); /* >=0 cmp >=0 */
39 return 1; /* >=0 cmp <0 */
44 return -1; /* <0 cmp >=0 */
48 qabs
->_mp_num
._mp_size
= ABS (q
->_mp_num
._mp_size
);
49 qabs
->_mp_num
._mp_d
= q
->_mp_num
._mp_d
;
50 qabs
->_mp_den
._mp_size
= q
->_mp_den
._mp_size
;
51 qabs
->_mp_den
._mp_d
= q
->_mp_den
._mp_d
;
53 return - _mpq_cmp_ui (qabs
, -n
, d
); /* <0 cmp <0 */