1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/* Test fegetexceptflag and fesetexceptflag.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <stdio.h>
#include <math-tests.h>
static int
test_set (int initial, const fexcept_t *saved, int mask, int expected)
{
int result = 0;
feclearexcept (FE_ALL_EXCEPT);
printf ("Testing set: initial exceptions %x, mask %x, expected %x\n",
(unsigned int) initial, (unsigned int) mask,
(unsigned int) expected);
int ret = feraiseexcept (initial);
if (ret != 0)
{
puts ("feraiseexcept failed");
result = 1;
return result;
}
ret = fesetexceptflag (saved, mask);
if (ret != 0)
{
puts ("fesetexceptflag failed");
result = 1;
}
else
puts ("fesetexceptflag succeeded");
ret = fetestexcept (FE_ALL_EXCEPT);
if (ret != expected)
{
printf ("raised exceptions %x, expected %x\n",
(unsigned int) ret, (unsigned int) expected);
result = 1;
}
return result;
}
static int
test_except (int exc, const char *exc_name)
{
int result = 0;
printf ("Testing %s\n", exc_name);
feclearexcept (FE_ALL_EXCEPT);
fexcept_t clear_saved_exc, clear_saved_all;
int ret = fegetexceptflag (&clear_saved_exc, exc);
if (ret == 0)
printf ("fegetexceptflag (%s) succeeded\n", exc_name);
else
{
printf ("fegetexceptflag (%s) failed\n", exc_name);
result = 1;
return result;
}
ret = fegetexceptflag (&clear_saved_all, FE_ALL_EXCEPT);
if (ret == 0)
puts ("fegetexceptflag (FE_ALL_EXCEPT) succeeded");
else
{
puts ("fegetexceptflag (FE_ALL_EXCEPT) failed");
result = 1;
return result;
}
ret = feraiseexcept (exc);
if (ret == 0)
printf ("feraiseexcept (%s) succeeded\n", exc_name);
else
{
printf ("feraiseexcept (%s) failed\n", exc_name);
if (exc == 0 || EXCEPTION_TESTS (float))
{
puts ("failure of feraiseexcept was unexpected");
result = 1;
}
else
puts ("failure of feraiseexcept OK, skipping further tests");
return result;
}
fexcept_t set_saved_exc, set_saved_all;
ret = fegetexceptflag (&set_saved_exc, exc);
if (ret == 0)
printf ("fegetexceptflag (%s) succeeded\n", exc_name);
else
{
printf ("fegetexceptflag (%s) failed\n", exc_name);
result = 1;
return result;
}
ret = fegetexceptflag (&set_saved_all, FE_ALL_EXCEPT);
if (ret == 0)
puts ("fegetexceptflag (FE_ALL_EXCEPT) succeeded");
else
{
puts ("fegetexceptflag (FE_ALL_EXCEPT) failed");
result = 1;
return result;
}
result |= test_set (0, &set_saved_exc, exc, exc);
result |= test_set (0, &set_saved_all, exc, exc);
result |= test_set (0, &set_saved_all, FE_ALL_EXCEPT, exc);
result |= test_set (0, &clear_saved_exc, exc, 0);
result |= test_set (0, &clear_saved_all, exc, 0);
result |= test_set (0, &clear_saved_all, FE_ALL_EXCEPT, 0);
result |= test_set (exc, &set_saved_exc, exc, exc);
result |= test_set (exc, &set_saved_all, exc, exc);
result |= test_set (exc, &set_saved_all, FE_ALL_EXCEPT, exc);
result |= test_set (exc, &clear_saved_exc, exc, 0);
result |= test_set (exc, &clear_saved_all, exc, 0);
result |= test_set (exc, &clear_saved_all, FE_ALL_EXCEPT, 0);
result |= test_set (FE_ALL_EXCEPT, &set_saved_exc, exc, FE_ALL_EXCEPT);
result |= test_set (FE_ALL_EXCEPT, &set_saved_all, exc, FE_ALL_EXCEPT);
result |= test_set (FE_ALL_EXCEPT, &set_saved_all, FE_ALL_EXCEPT, exc);
result |= test_set (FE_ALL_EXCEPT, &clear_saved_exc, exc,
FE_ALL_EXCEPT & ~exc);
result |= test_set (FE_ALL_EXCEPT, &clear_saved_all, exc,
FE_ALL_EXCEPT & ~exc);
result |= test_set (FE_ALL_EXCEPT, &clear_saved_all, FE_ALL_EXCEPT, 0);
return result;
}
static int
do_test (void)
{
int result = 0;
result |= test_except (0, "0");
result |= test_except (FE_ALL_EXCEPT, "FE_ALL_EXCEPT");
#ifdef FE_DIVBYZERO
result |= test_except (FE_DIVBYZERO, "FE_DIVBYZERO");
#endif
#ifdef FE_INEXACT
result |= test_except (FE_INEXACT, "FE_INEXACT");
#endif
#ifdef FE_INVALID
result |= test_except (FE_INVALID, "FE_INVALID");
#endif
#ifdef FE_OVERFLOW
result |= test_except (FE_OVERFLOW, "FE_OVERFLOW");
#endif
#ifdef FE_UNDERFLOW
result |= test_except (FE_UNDERFLOW, "FE_UNDERFLOW");
#endif
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
