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
|
/* Test signaling NaNs in issignaling, isnan, isinf, and similar functions.
Copyright (C) 2008-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2005.
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/>. */
#define _GNU_SOURCE 1
#include <stdio.h>
#include <math.h>
#include <float.h>
#if __UCLIBC_HAS_FENV__
#include <fenv.h>
#endif
#include <signal.h>
#include <setjmp.h>
#include "math-tests.h"
#if __UCLIBC_HAS_FENV__
static sigjmp_buf sigfpe_buf;
static void
myFPsighandler (int signal)
{
siglongjmp (sigfpe_buf, 1);
}
static int errors = 0;
#define CHECK(testname, expr) \
do { \
feclearexcept (FE_ALL_EXCEPT); \
feenableexcept (FE_ALL_EXCEPT); \
if (sigsetjmp (sigfpe_buf, 0)) \
{ \
printf ("%s raised SIGFPE\n", testname); \
++errors; \
} \
else if (!(expr)) \
{ \
printf ("Failure: %s\n", testname); \
++errors; \
} \
} while (0)
#define TEST_FUNC(NAME, FLOAT, SUFFIX) \
static void \
NAME (void) \
{ \
/* Variables are declared volatile to forbid some compiler \
optimizations. */ \
volatile FLOAT Inf_var, qNaN_var, zero_var, one_var; \
/* A sNaN is only guaranteed to be representable in variables with */ \
/* static (or thread-local) storage duration. */ \
static volatile FLOAT sNaN_var = __builtin_nans ## SUFFIX (""); \
static volatile FLOAT minus_sNaN_var = -__builtin_nans ## SUFFIX (""); \
fenv_t saved_fenv; \
\
zero_var = 0.0; \
one_var = 1.0; \
qNaN_var = __builtin_nan ## SUFFIX (""); \
Inf_var = one_var / zero_var; \
\
(void) &zero_var; \
(void) &one_var; \
(void) &qNaN_var; \
(void) &sNaN_var; \
(void) &minus_sNaN_var; \
(void) &Inf_var; \
\
fegetenv (&saved_fenv); \
\
CHECK (#FLOAT " issignaling (qNaN)", !issignaling (qNaN_var)); \
CHECK (#FLOAT " issignaling (-qNaN)", !issignaling (-qNaN_var)); \
CHECK (#FLOAT " issignaling (sNaN)", \
SNAN_TESTS (FLOAT) ? issignaling (sNaN_var) : 1); \
CHECK (#FLOAT " issignaling (-sNaN)", \
SNAN_TESTS (FLOAT) ? issignaling (minus_sNaN_var) : 1); \
CHECK (#FLOAT " isnan (qNaN)", isnan (qNaN_var)); \
CHECK (#FLOAT " isnan (-qNaN)", isnan (-qNaN_var)); \
CHECK (#FLOAT " isnan (sNaN)", \
SNAN_TESTS (FLOAT) ? isnan (sNaN_var) : 1); \
CHECK (#FLOAT " isnan (-sNaN)", \
SNAN_TESTS (FLOAT) ? isnan (minus_sNaN_var) : 1); \
CHECK (#FLOAT " isinf (qNaN)", !isinf (qNaN_var)); \
CHECK (#FLOAT " isinf (-qNaN)", !isinf (-qNaN_var)); \
CHECK (#FLOAT " isinf (sNaN)", \
SNAN_TESTS (FLOAT) ? !isinf (sNaN_var) : 1); \
CHECK (#FLOAT " isinf (-sNaN)", \
SNAN_TESTS (FLOAT) ? !isinf (minus_sNaN_var) : 1); \
CHECK (#FLOAT " isfinite (qNaN)", !isfinite (qNaN_var)); \
CHECK (#FLOAT " isfinite (-qNaN)", !isfinite (-qNaN_var)); \
CHECK (#FLOAT " isfinite (sNaN)", \
SNAN_TESTS (FLOAT) ? !isfinite (sNaN_var) : 1); \
CHECK (#FLOAT " isfinite (-sNaN)", \
SNAN_TESTS (FLOAT) ? !isfinite (minus_sNaN_var) : 1); \
CHECK (#FLOAT " isnormal (qNaN)", !isnormal (qNaN_var)); \
CHECK (#FLOAT " isnormal (-qNaN)", !isnormal (-qNaN_var)); \
CHECK (#FLOAT " isnormal (sNaN)", \
SNAN_TESTS (FLOAT) ? !isnormal (sNaN_var) : 1); \
CHECK (#FLOAT " isnormal (-sNaN)", \
SNAN_TESTS (FLOAT) ? !isnormal (minus_sNaN_var) : 1); \
CHECK (#FLOAT " fpclassify (qNaN)", (fpclassify (qNaN_var)==FP_NAN)); \
CHECK (#FLOAT " fpclassify (-qNaN)", (fpclassify (-qNaN_var)==FP_NAN)); \
CHECK (#FLOAT " fpclassify (sNaN)", \
SNAN_TESTS (FLOAT) ? fpclassify (sNaN_var) == FP_NAN : 1); \
CHECK (#FLOAT " fpclassify (-sNaN)", \
SNAN_TESTS (FLOAT) ? fpclassify (minus_sNaN_var) == FP_NAN : 1); \
\
fesetenv (&saved_fenv); /* restore saved fenv */ \
} \
TEST_FUNC (float_test, float, f)
TEST_FUNC (double_test, double, )
#ifndef NO_LONG_DOUBLE
TEST_FUNC (ldouble_test, long double, l)
#endif
#endif
static int
do_test (void)
{
#if __UCLIBC_HAS_FENV__
signal (SIGFPE, &myFPsighandler);
float_test ();
double_test ();
#ifndef NO_LONG_DOUBLE
ldouble_test ();
#endif
return errors != 0;
#else
return 23;
#endif
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
