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1 | /* Copyright (C) 1991, 1993, 1997 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
478b92f0 UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
478b92f0 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 RM |
17 | |
18 | #include <errno.h> | |
19 | ||
20 | static char iferrno[] = "#ifdef _ERRNO_H"; | |
21 | static char endiferrno[] = "#endif /* <errno.h> included. */"; | |
22 | static char ifEmath[] = "#if !defined(__Emath_defined) && \ | |
23 | (defined(_ERRNO_H) || defined(__need_Emath))"; | |
24 | static char endifEmath[] = "#endif /* Emath not defined and <errno.h> \ | |
25 | included or need Emath. */"; | |
26 | ||
27 | static int biggest_value = 0; | |
28 | static int done_ENOSYS = 0; | |
29 | static int done_ERANGE = 0, done_EDOM = 0; | |
30 | ||
31 | static void | |
32 | DO(name, value) | |
33 | char *name; | |
34 | int value; | |
35 | { | |
36 | int is_ERANGE = !done_ERANGE && !strcmp(name, "ERANGE"); | |
37 | int is_EDOM = !done_EDOM && !strcmp(name, "EDOM"); | |
38 | int is_Emath = is_ERANGE || is_EDOM; | |
39 | ||
40 | if (is_Emath) | |
41 | { | |
42 | puts(endiferrno); | |
43 | puts(ifEmath); | |
44 | } | |
45 | ||
46 | if (!strcmp (name, "EWOULDBLOCK")) | |
47 | { | |
48 | puts ("#define EWOULDBLOCK EAGAIN /* Translated in glibc. */"); | |
49 | name = "EWOULDBLOCK_sys /* Value actually returned by kernel. */"; | |
50 | } | |
51 | ||
52 | printf ("#define %s %d\n", name, value); | |
53 | ||
54 | if (is_Emath) | |
55 | { | |
56 | puts(endifEmath); | |
57 | puts(iferrno); | |
58 | } | |
59 | ||
60 | if (value > biggest_value) | |
61 | biggest_value = value; | |
62 | ||
63 | if (is_ERANGE) | |
64 | done_ERANGE = 1; | |
65 | else if (is_EDOM) | |
66 | done_EDOM = 1; | |
67 | else if (!done_ENOSYS && !strcmp(name, "ENOSYS")) | |
68 | done_ENOSYS = 1; | |
69 | } | |
70 | ||
71 | int | |
72 | main() | |
73 | { | |
74 | puts(iferrno); | |
75 | ||
76 | ERRNOS; | |
77 | ||
78 | if (!done_EDOM || !done_ERANGE) | |
79 | { | |
80 | puts(endiferrno); | |
81 | puts(ifEmath); | |
82 | if (!done_EDOM) | |
83 | printf("#define EDOM %d\n", ++biggest_value); | |
84 | if (!done_ERANGE) | |
85 | printf("#define ERANGE %d\n", ++biggest_value); | |
86 | puts(endifEmath); | |
87 | } | |
88 | ||
89 | if (!done_ENOSYS) | |
90 | printf("#define ENOSYS %d\n", ++biggest_value); | |
91 | ||
92 | puts(endiferrno); | |
93 | ||
94 | puts("#undef __need_Emath"); | |
95 | puts("#ifndef __Emath_defined\n#define __Emath_defined 1\n#endif"); | |
96 | ||
97 | exit(0); | |
98 | } |