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
|
/* Copyright (C) 1991, 1993, 1997 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
static char iferrno[] = "#ifdef _ERRNO_H";
static char endiferrno[] = "#endif /* <errno.h> included. */";
static char ifEmath[] = "#if !defined(__Emath_defined) && \
(defined(_ERRNO_H) || defined(__need_Emath))";
static char endifEmath[] = "#endif /* Emath not defined and <errno.h> \
included or need Emath. */";
static int biggest_value = 0;
static int done_ENOSYS = 0;
static int done_ERANGE = 0, done_EDOM = 0;
static void
DO(name, value)
char *name;
int value;
{
int is_ERANGE = !done_ERANGE && !strcmp(name, "ERANGE");
int is_EDOM = !done_EDOM && !strcmp(name, "EDOM");
int is_Emath = is_ERANGE || is_EDOM;
if (is_Emath)
{
puts(endiferrno);
puts(ifEmath);
}
if (!strcmp (name, "EWOULDBLOCK"))
{
puts ("#define EWOULDBLOCK EAGAIN /* Translated in glibc. */");
name = "EWOULDBLOCK_sys /* Value actually returned by kernel. */";
}
printf ("#define %s %d\n", name, value);
if (is_Emath)
{
puts(endifEmath);
puts(iferrno);
}
if (value > biggest_value)
biggest_value = value;
if (is_ERANGE)
done_ERANGE = 1;
else if (is_EDOM)
done_EDOM = 1;
else if (!done_ENOSYS && !strcmp(name, "ENOSYS"))
done_ENOSYS = 1;
}
int
main()
{
puts(iferrno);
ERRNOS;
if (!done_EDOM || !done_ERANGE)
{
puts(endiferrno);
puts(ifEmath);
if (!done_EDOM)
printf("#define EDOM %d\n", ++biggest_value);
if (!done_ERANGE)
printf("#define ERANGE %d\n", ++biggest_value);
puts(endifEmath);
}
if (!done_ENOSYS)
printf("#define ENOSYS %d\n", ++biggest_value);
puts(endiferrno);
puts("#undef __need_Emath");
puts("#ifndef __Emath_defined\n#define __Emath_defined 1\n#endif");
exit(0);
}
|
