1 /* comparison predicates
2
3 Copyright 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
4 Contributed by the AriC and Caramel projects, INRIA.
5
6 This file is part of the GNU MPFR Library.
7
8 The GNU MPFR Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or (at your
11 option) any later version.
12
13 The GNU MPFR Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 License for more details.
17
18 You should have received a copy of the GNU Lesser General Public License
19 along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
20 http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
21 51 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
38 int
mpfr_greater_p(mpfr_srcptr x,mpfr_srcptr y)39 mpfr_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
44 int
mpfr_greaterequal_p(mpfr_srcptr x,mpfr_srcptr y)45 mpfr_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
50 int
mpfr_less_p(mpfr_srcptr x,mpfr_srcptr y)51 mpfr_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
56 int
mpfr_lessequal_p(mpfr_srcptr x,mpfr_srcptr y)57 mpfr_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
62 int
mpfr_lessgreater_p(mpfr_srcptr x,mpfr_srcptr y)63 mpfr_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
68 int
mpfr_equal_p(mpfr_srcptr x,mpfr_srcptr y)69 mpfr_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
74 int
mpfr_unordered_p(mpfr_srcptr x,mpfr_srcptr y)75 mpfr_unordered_p (mpfr_srcptr x, mpfr_srcptr y)
76 {
77 return MPFR_IS_NAN(x) || MPFR_IS_NAN(y);
78 }
79