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
|
/* Test fetestexceptflag.
Copyright (C) 2016-2025 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
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <stdio.h>
#include <math-tests.h>
static int
test_one (int exc_test, int exc_set, int exc_save)
{
int result = 0;
printf ("Individual test: %x %x %x\n", (unsigned int) exc_test,
(unsigned int) exc_set, (unsigned int) exc_save);
feclearexcept (FE_ALL_EXCEPT);
int ret = fesetexcept (exc_set);
if (ret != 0)
{
puts ("fesetexcept failed");
if (exc_set == 0 || EXCEPTION_TESTS (float))
{
puts ("failure of fesetexcept was unexpected");
result = 1;
}
else
puts ("failure of fesetexcept OK, skipping further tests");
return result;
}
fexcept_t saved;
ret = fegetexceptflag (&saved, exc_save);
if (ret == 0)
puts ("fegetexceptflag succeeded");
else
{
puts ("fegetexceptflag failed");
result = 1;
return result;
}
ret = fetestexceptflag (&saved, exc_test);
if (ret == (exc_set & exc_test))
puts ("fetestexceptflag result correct");
else
{
printf ("fetestexceptflag returned %x, expected %x\n", ret,
exc_set & exc_test);
result = 1;
}
if (exc_save == FE_ALL_EXCEPT)
{
/* Also test fetestexceptflag testing all exceptions but
possibly with only some set. */
ret = fetestexceptflag (&saved, FE_ALL_EXCEPT);
if (ret == exc_set)
puts ("fetestexceptflag (FE_ALL_EXCEPT) result correct");
else
{
printf ("fetestexceptflag (FE_ALL_EXCEPT) returned %x, expected %x\n",
ret, exc_set);
result = 1;
}
}
return result;
}
static int
test_fetestexceptflag (int exc, const char *exc_name)
{
int result = 0;
printf ("Testing %s\n", exc_name);
/* Test each case of: whether this exception is set or clear;
whether other exceptions are set or clear; whether the whole
state is saved or just the state for this exception. */
result |= test_one (exc, 0, exc);
result |= test_one (exc, 0, FE_ALL_EXCEPT);
result |= test_one (exc, exc, exc);
result |= test_one (exc, exc, FE_ALL_EXCEPT);
result |= test_one (exc, FE_ALL_EXCEPT & ~exc, exc);
result |= test_one (exc, FE_ALL_EXCEPT & ~exc, FE_ALL_EXCEPT);
result |= test_one (exc, FE_ALL_EXCEPT, exc);
result |= test_one (exc, FE_ALL_EXCEPT, FE_ALL_EXCEPT);
return result;
}
static int
do_test (void)
{
int result = 0;
result |= test_fetestexceptflag (0, "0");
result |= test_fetestexceptflag (FE_ALL_EXCEPT, "FE_ALL_EXCEPT");
#ifdef FE_DIVBYZERO
result |= test_fetestexceptflag (FE_DIVBYZERO, "FE_DIVBYZERO");
#endif
#ifdef FE_INEXACT
result |= test_fetestexceptflag (FE_INEXACT, "FE_INEXACT");
#endif
#ifdef FE_INVALID
result |= test_fetestexceptflag (FE_INVALID, "FE_INVALID");
#endif
#ifdef FE_OVERFLOW
result |= test_fetestexceptflag (FE_OVERFLOW, "FE_OVERFLOW");
#endif
#ifdef FE_UNDERFLOW
result |= test_fetestexceptflag (FE_UNDERFLOW, "FE_UNDERFLOW");
#endif
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
