1/* Test file for mpfr_cmpabs.
2
3Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4Contributed by the Arenaire and Cacao 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 <stdio.h>
24#include <stdlib.h>
25
26#include "mpfr-test.h"
27
28#define ERROR(s) do { printf(s); exit(1); } while (0)
29
30int
31main (void)
32{
33  mpfr_t xx, yy;
34  int c;
35
36  tests_start_mpfr ();
37
38  mpfr_init2 (xx, 2);
39  mpfr_init2 (yy, 2);
40
41  mpfr_clear_erangeflag ();
42  MPFR_SET_NAN (xx);
43  MPFR_SET_NAN (yy);
44  if (mpfr_cmpabs (xx, yy) != 0)
45    ERROR ("mpfr_cmpabs (NAN,NAN) returns non-zero\n");
46  if (!mpfr_erangeflag_p ())
47    ERROR ("mpfr_cmpabs (NAN,NAN) doesn't set erange flag\n");
48
49  mpfr_set_str_binary (xx, "0.10E0");
50  mpfr_set_str_binary (yy, "-0.10E0");
51  if (mpfr_cmpabs (xx, yy) != 0)
52    ERROR ("mpfr_cmpabs (xx, yy) returns non-zero for prec=2\n");
53
54  mpfr_set_prec (xx, 65);
55  mpfr_set_prec (yy, 65);
56  mpfr_set_str_binary (xx, "-0.10011010101000110101010000000011001001001110001011101011111011101E623");
57  mpfr_set_str_binary (yy, "0.10011010101000110101010000000011001001001110001011101011111011100E623");
58  if (mpfr_cmpabs (xx, yy) <= 0)
59    ERROR ("Error (1) in mpfr_cmpabs\n");
60
61  mpfr_set_str_binary (xx, "-0.10100010001110110111000010001000010011111101000100011101000011100");
62  mpfr_set_str_binary (yy, "-0.10100010001110110111000010001000010011111101000100011101000011011");
63  if (mpfr_cmpabs (xx, yy) <= 0)
64    ERROR ("Error (2) in mpfr_cmpabs\n");
65
66  mpfr_set_prec (xx, 160);
67  mpfr_set_prec (yy, 160);
68  mpfr_set_str_binary (xx, "0.1E1");
69  mpfr_set_str_binary (yy, "-0.1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111100000110001110100");
70  if (mpfr_cmpabs (xx, yy) <= 0)
71    ERROR ("Error (3) in mpfr_cmpabs\n");
72
73  mpfr_set_prec(xx, 53);
74  mpfr_set_prec(yy, 200);
75  mpfr_set_ui (xx, 1, (mpfr_rnd_t) 0);
76  mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0);
77  if (mpfr_cmpabs(xx, yy) != 0)
78    ERROR ("Error in mpfr_cmpabs: 1.0 != 1.0\n");
79
80  mpfr_set_prec (yy, 31);
81  mpfr_set_str (xx, "-1.0000000002", 10, (mpfr_rnd_t) 0);
82  mpfr_set_ui (yy, 1, (mpfr_rnd_t) 0);
83  if (!(mpfr_cmpabs(xx,yy)>0))
84    ERROR ("Error in mpfr_cmpabs: not 1.0000000002 > 1.0\n");
85  mpfr_set_prec(yy, 53);
86
87  mpfr_set_ui(xx, 0, MPFR_RNDN);
88  mpfr_set_str (yy, "-0.1", 10, MPFR_RNDN);
89  if (mpfr_cmpabs(xx, yy) >= 0)
90    ERROR ("Error in mpfr_cmpabs(0.0, 0.1)\n");
91
92  mpfr_set_inf (xx, -1);
93  mpfr_set_str (yy, "23489745.0329", 10, MPFR_RNDN);
94  if (mpfr_cmpabs(xx, yy) <= 0)
95    ERROR ("Error in mpfr_cmp(-Inf, 23489745.0329)\n");
96
97  mpfr_set_inf (xx, 1);
98  mpfr_set_inf (yy, -1);
99  if (mpfr_cmpabs(xx, yy) != 0)
100    ERROR ("Error in mpfr_cmpabs(Inf, -Inf)\n");
101
102  mpfr_set_inf (yy, -1);
103  mpfr_set_str (xx, "2346.09234", 10, MPFR_RNDN);
104  if (mpfr_cmpabs (xx, yy) >= 0)
105    ERROR ("Error in mpfr_cmpabs(-Inf, 2346.09234)\n");
106
107  mpfr_set_prec (xx, 2);
108  mpfr_set_prec (yy, 128);
109  mpfr_set_str_binary (xx, "0.1E10");
110  mpfr_set_str_binary (yy,
111                       "0.100000000000000000000000000000000000000000000000"
112                       "00000000000000000000000000000000000000000000001E10");
113  if (mpfr_cmpabs (xx, yy) >= 0)
114    ERROR ("Error in mpfr_cmpabs(10.235, 2346.09234)\n");
115  mpfr_swap (xx, yy);
116  if (mpfr_cmpabs(xx, yy) <= 0)
117    ERROR ("Error in mpfr_cmpabs(2346.09234, 10.235)\n");
118  mpfr_swap (xx, yy);
119
120  /* Check for NAN */
121  mpfr_set_nan (xx);
122  mpfr_clear_erangeflag ();
123  c = (mpfr_cmp) (xx, yy);
124  if (c != 0 || !mpfr_erangeflag_p () )
125    {
126      printf ("NAN error (1)\n");
127      exit (1);
128    }
129  mpfr_clear_erangeflag ();
130  c = (mpfr_cmp) (yy, xx);
131  if (c != 0 || !mpfr_erangeflag_p () )
132    {
133      printf ("NAN error (2)\n");
134      exit (1);
135    }
136  mpfr_clear_erangeflag ();
137  c = (mpfr_cmp) (xx, xx);
138  if (c != 0 || !mpfr_erangeflag_p () )
139    {
140      printf ("NAN error (3)\n");
141      exit (1);
142    }
143
144  mpfr_clear (xx);
145  mpfr_clear (yy);
146
147  tests_end_mpfr ();
148  return 0;
149}
150