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
|
/* Test to strtod etc for numbers like x000...0000.000e-nn.
This file is part of the GNU C Library.
Copyright (C) 2001-2016 Free Software Foundation, Inc.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
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 <stdio.h>
#include <stdlib.h>
#include <string.h>
int
main (void)
{
char buf[300];
int cnt;
int result = 0;
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
float f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtof (buf, NULL);
if (f != (float) cnt)
{
printf ("strtof(\"%s\") failed for cnt == %d (%g instead of %g)\n",
buf, cnt, f, (float) cnt);
result = 1;
}
else
printf ("strtof() fine for cnt == %d\n", cnt);
}
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
double f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtod (buf, NULL);
if (f != (double) cnt)
{
printf ("strtod(\"%s\") failed for cnt == %d (%g instead of %g)\n",
buf, cnt, f, (double) cnt);
result = 1;
}
else
printf ("strtod() fine for cnt == %d\n", cnt);
}
for (cnt = 0; cnt < 200; ++cnt)
{
ssize_t n;
long double f;
n = sprintf (buf, "%d", cnt);
memset (buf + n, '0', cnt);
sprintf (buf + n + cnt, ".000e-%d", cnt);
f = strtold (buf, NULL);
if (f != (long double) cnt)
{
printf ("strtold(\"%s\") failed for cnt == %d (%Lg instead of %Lg)\n",
buf, cnt, f, (long double) cnt);
result = 1;
}
else
printf ("strtold() fine for cnt == %d\n", cnt);
}
return result;
}
|
GitWeb