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
|
/* Test of strtod() function. "+1.0"
$Id: strtod-2.c,v 1.1 2007/02/05 21:35:59 dmix Exp $
*/
#include <errno.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "progmem.h"
union lofl_u {
long lo;
float fl;
};
volatile union lofl_u v = { .lo = 1 };
PROGMEM const struct { /* Table of test cases. */
char s[20];
unsigned char len;
float val;
int eno;
} t[] = {
{ "1", 1, 1, 0 },
{ "1.", 2, 1, 0 },
{ "1.0", 3, 1, 0 },
{ "1.00", 4, 1, 0 },
{ "01", 2, 1, 0 },
{ "001.", 4, 1, 0 },
{ "0001.0", 6, 1, 0 },
{ "00001.00", 8, 1, 0 },
{ "1e0", 3, 1, 0 },
{ "1e00", 4, 1, 0 },
{ "1e+0", 4, 1, 0 },
{ "1e+00", 5, 1, 0 },
{ "1e-0", 4, 1, 0 },
{ "1e-00", 5, 1, 0 },
{ "1.e0", 4, 1, 0 },
{ "1.0e0", 5, 1, 0 },
{ "1.00e0", 6, 1, 0 },
{ "001.0e0", 7, 1, 0 },
{ "10e-1", 5, 1, 0 },
{ "100e-2", 6, 1, 0 },
{ "1000e-3", 7, 1, 0 },
{ "10000e-4", 8, 1, 0 },
{ "100000e-5", 9, 1, 0 },
{ "1000000e-6", 10, 1, 0 },
{ "10000000e-7", 11, 1, 0 },
{ "100000000e-8", 12, 1, 0 },
{ "1000000000e-9", 13, 1, 0 },
{ "10000000000e-10", 15, 1, 0 },
{ "100000000000e-11", 16, 1, 0 },
{ "1000000000000e-12", 17, 1, 0 },
{ "10000000000000e-13", 18, 1, 0 },
{ "100000000000000e-14", 19, 1, 0 },
{ ".1e+1", 5, 1, 0 },
{ ".1e1", 4, 1, 0 },
{ ".01e2", 5, 1, 0 },
{ ".001e3", 6, 1, 0 },
{ ".0001e4", 7, 1, 0 },
{ ".00001e5", 8, 1, 0 },
{ ".000001e6", 9, 1, 0 },
{ ".0000001e7", 10, 1, 0 },
{ ".00000001e8", 11, 1, 0 },
{ ".000000001e9", 12, 1, 0 },
{ ".0000000001e10", 14, 1, 0 },
{ ".00000000001e11", 15, 1, 0 },
{ ".000000000001e12", 16, 1, 0 },
{ ".0000000000001e13", 17, 1, 0 },
{ ".00000000000001e14", 18, 1, 0 },
{ ".000000000000001e15", 19, 1, 0 },
{ "100000001e-8", 12, 1, 0 },
{ "100000004e-8", 12, 1, 0 },
/* { "1000000033e-9", 13, 1, 0 }, --> 0x3f800001 today */
{ "1000000032e-9", 13, 1, 0 },
{ "10000000329e-10", 15, 1, 0 },
{ "100000003299e-11", 16, 1, 0 },
{ "1000000032999e-12", 17, 1, 0 },
{ "10000000329999e-13", 18, 1, 0 },
{ "100000003299999e-14", 19, 1, 0 },
{ "99999998e-8", 11, 1, 0 },
{ "999999971e-9", 12, 1, 0 },
{ "9999999702e-10", 14, 1, 0 },
{ "99999997020e-11", 15, 1, 0 },
{ "999999970200e-12", 16, 1, 0 },
};
void x_exit (int index)
{
#ifndef __AVR__
fprintf (stderr, "t[%d]: %#lx\n", index - 1, v.lo);
#endif
exit (index ? index : -1);
}
int main ()
{
char s [sizeof(t[0].s)];
char *p;
union lofl_u mst;
unsigned char len;
int eno;
int i;
for (i = 0; i < (int) (sizeof(t) / sizeof(t[0])); i++) {
strcpy_P (s, t[i].s);
len = pgm_read_byte (& t[i].len);
mst.lo = pgm_read_dword (& t[i].val);
eno = pgm_read_word (& t[i].eno);
errno = 0;
p = 0;
v.fl = strtod (s, &p);
if (!p || (p - s) != len || errno != eno)
x_exit (i+1);
if (isnan(mst.fl) && isnan(v.fl))
continue;
if (v.lo != mst.lo)
x_exit (i+1);
}
return 0;
}
|
