1/* comparison predicates
2
3Copyright 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
4Contributed by the AriC and Caramel projects, INRIA.
5
6This file is part of the GNU MPFR Library.
7
8The GNU MPFR Library is free software; you can redistribute it and/or modify
9it under the terms of the GNU Lesser General Public License as published by
10the Free Software Foundation; either version 3 of the License, or (at your
11option) any later version.
12
13The GNU MPFR Library is distributed in the hope that it will be useful, but
14WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
16License for more details.
17
18You should have received a copy of the GNU Lesser General Public License
19along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
20http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
2151 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
22
23#include "mpfr-impl.h"
24
25/* Note: these functions currently use mpfr_cmp; they could have their
26   own code to be faster. */
27
28/*                          =     <     >     unordered
29 * mpfr_greater_p           0     0     1     0
30 * mpfr_greaterequal_p      1     0     1     0
31 * mpfr_less_p              0     1     0     0
32 * mpfr_lessequal_p         1     1     0     0
33 * mpfr_lessgreater_p       0     1     1     0
34 * mpfr_equal_p             1     0     0     0
35 * mpfr_unordered_p         0     0     0     1
36 */
37
38int
39mpfr_greater_p (mpfr_srcptr x, mpfr_srcptr y)
40{
41  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) > 0);
42}
43
44int
45mpfr_greaterequal_p (mpfr_srcptr x, mpfr_srcptr y)
46{
47  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) >= 0);
48}
49
50int
51mpfr_less_p (mpfr_srcptr x, mpfr_srcptr y)
52{
53  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) < 0);
54}
55
56int
57mpfr_lessequal_p (mpfr_srcptr x, mpfr_srcptr y)
58{
59  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) <= 0);
60}
61
62int
63mpfr_lessgreater_p (mpfr_srcptr x, mpfr_srcptr y)
64{
65  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) != 0);
66}
67
68int
69mpfr_equal_p (mpfr_srcptr x, mpfr_srcptr y)
70{
71  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y) ? 0 : (mpfr_cmp (x, y) == 0);
72}
73
74int
75mpfr_unordered_p (mpfr_srcptr x, mpfr_srcptr y)
76{
77  return MPFR_IS_NAN(x) || MPFR_IS_NAN(y);
78}
79