1 /*
2 ** Copyright (C) 2006-2012 Erik de Castro Lopo <erikd@mega-nerd.com>
3 **
4 ** This program is free software; you can redistribute it and/or modify
5 ** it under the terms of the GNU Lesser General Public License as published by
6 ** the Free Software Foundation; either version 2.1 of the License, or
7 ** (at your option) any later version.
8 **
9 ** This program is distributed in the hope that it will be useful,
10 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 ** GNU Lesser General Public License for more details.
13 **
14 ** You should have received a copy of the GNU Lesser General Public License
15 ** along with this program; if not, write to the Free Software
16 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 #include "sfconfig.h"
20
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <stdarg.h>
25 #include <errno.h>
26 #include <math.h>
27
28 #include "common.h"
29 #include "test_main.h"
30
31 void
test_float_convert(void)32 test_float_convert (void)
33 { static float data [] =
34 { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI,
35 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10,
36 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20,
37 } ;
38
39 int k ;
40
41 print_test_name (__func__) ;
42
43 for (k = 0 ; k < ARRAY_LEN (data) ; k++)
44 { unsigned char bytes [4] ;
45 float test ;
46
47 float32_le_write (data [k], bytes) ;
48 test = float32_le_read (bytes) ;
49
50 if (fabs (data [k] - test) > 1e-20)
51 { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ;
52 exit (1) ;
53 } ;
54
55 float32_be_write (data [k], bytes) ;
56 test = float32_be_read (bytes) ;
57
58 if (fabs (data [k] - test) > 1e-20)
59 { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ;
60 exit (1) ;
61 } ;
62
63 } ;
64
65 puts ("ok") ;
66 } /* test_float_convert */
67
68 void
test_double_convert(void)69 test_double_convert (void)
70 { static double data [] =
71 { 0.0, 1.0, -1.0, 1.0 * M_PI, -1.0 * M_PI,
72 1e9, -1e9, 1e-9, -1e-9, 1e-10, -1e-10,
73 1e-19, -1e-19, 1e19, -1e19, 1e-20, -1e-20,
74 } ;
75
76 int k ;
77
78 print_test_name (__func__) ;
79
80 for (k = 0 ; k < ARRAY_LEN (data) ; k++)
81 { unsigned char bytes [8] ;
82 double test ;
83
84 double64_le_write (data [k], bytes) ;
85 test = double64_le_read (bytes) ;
86
87 if (fabs (data [k] - test) > 1e-20)
88 { printf ("\n\nLine %d : Test %d, little endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ;
89 exit (1) ;
90 } ;
91
92 double64_be_write (data [k], bytes) ;
93 test = double64_be_read (bytes) ;
94
95 if (fabs (data [k] - test) > 1e-20)
96 { printf ("\n\nLine %d : Test %d, big endian error %.15g -> %.15g.\n\n", __LINE__, k, data [k], test) ;
97 exit (1) ;
98 } ;
99
100 } ;
101
102 puts ("ok") ;
103 } /* test_double_convert */
104
105