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
|
/* Test nan functions payload handling (bug 16961).
Copyright (C) 2015-2020 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 <float.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Avoid built-in functions. */
#define WRAP_NAN(FUNC, STR) \
({ const char *volatile wns = (STR); FUNC (wns); })
#define WRAP_STRTO(FUNC, STR) \
({ const char *volatile wss = (STR); FUNC (wss, NULL); })
#define CHECK_IS_NAN(TYPE, A) \
do \
{ \
if (isnan (A)) \
puts ("PASS: " #TYPE " " #A); \
else \
{ \
puts ("FAIL: " #TYPE " " #A); \
result = 1; \
} \
} \
while (0)
#define CHECK_SAME_NAN(TYPE, A, B) \
do \
{ \
if (memcmp (&(A), &(B), sizeof (A)) == 0) \
puts ("PASS: " #TYPE " " #A " = " #B); \
else \
{ \
puts ("FAIL: " #TYPE " " #A " = " #B); \
result = 1; \
} \
} \
while (0)
#define CHECK_DIFF_NAN(TYPE, A, B) \
do \
{ \
if (memcmp (&(A), &(B), sizeof (A)) != 0) \
puts ("PASS: " #TYPE " " #A " != " #B); \
else \
{ \
puts ("FAIL: " #TYPE " " #A " != " #B); \
result = 1; \
} \
} \
while (0)
/* Cannot test payloads by memcmp for formats where NaNs have padding
bits. */
#define CAN_TEST_EQ(MANT_DIG) ((MANT_DIG) != 64 && (MANT_DIG) != 106)
#define RUN_TESTS(TYPE, SFUNC, FUNC, MANT_DIG) \
do \
{ \
TYPE n123 = WRAP_NAN (FUNC, "123"); \
CHECK_IS_NAN (TYPE, n123); \
TYPE s123 = WRAP_STRTO (SFUNC, "NAN(123)"); \
CHECK_IS_NAN (TYPE, s123); \
TYPE n456 = WRAP_NAN (FUNC, "456"); \
CHECK_IS_NAN (TYPE, n456); \
TYPE s456 = WRAP_STRTO (SFUNC, "NAN(456)"); \
CHECK_IS_NAN (TYPE, s456); \
TYPE n123x = WRAP_NAN (FUNC, "123)"); \
CHECK_IS_NAN (TYPE, n123x); \
TYPE nemp = WRAP_NAN (FUNC, ""); \
CHECK_IS_NAN (TYPE, nemp); \
TYPE semp = WRAP_STRTO (SFUNC, "NAN()"); \
CHECK_IS_NAN (TYPE, semp); \
TYPE sx = WRAP_STRTO (SFUNC, "NAN"); \
CHECK_IS_NAN (TYPE, sx); \
if (CAN_TEST_EQ (MANT_DIG)) \
CHECK_SAME_NAN (TYPE, n123, s123); \
if (CAN_TEST_EQ (MANT_DIG)) \
CHECK_SAME_NAN (TYPE, n456, s456); \
if (CAN_TEST_EQ (MANT_DIG)) \
CHECK_SAME_NAN (TYPE, nemp, semp); \
if (CAN_TEST_EQ (MANT_DIG)) \
CHECK_SAME_NAN (TYPE, n123x, sx); \
CHECK_DIFF_NAN (TYPE, n123, n456); \
CHECK_DIFF_NAN (TYPE, n123, nemp); \
CHECK_DIFF_NAN (TYPE, n123, n123x); \
CHECK_DIFF_NAN (TYPE, n456, nemp); \
CHECK_DIFF_NAN (TYPE, n456, n123x); \
} \
while (0)
static int
do_test (void)
{
int result = 0;
RUN_TESTS (float, strtof, nanf, FLT_MANT_DIG);
RUN_TESTS (double, strtod, nan, DBL_MANT_DIG);
RUN_TESTS (long double, strtold, nanl, LDBL_MANT_DIG);
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
