Update.
[glibc.git] / sysdeps / unix / errnos-tmpl.c
blob67611fd7b63cb4bca5a2361fda34aff10d0fbcf5
1 /* Copyright (C) 1991, 1993 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with the GNU C Library; see the file COPYING. If not, write to
16 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
18 #include <errno.h>
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. */";
27 static int biggest_value = 0;
28 static int done_ENOSYS = 0;
29 static int done_ERANGE = 0, done_EDOM = 0;
31 static void
32 DO(name, value)
33 char *name;
34 int value;
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;
40 if (is_Emath)
42 puts(endiferrno);
43 puts(ifEmath);
46 if (!strcmp (name, "EWOULDBLOCK"))
48 puts ("#define EWOULDBLOCK EAGAIN /* Translated in glibc. */");
49 name = "EWOULDBLOCK_sys /* Value actually returned by kernel. */";
52 printf ("#define %s %d\n", name, value);
54 if (is_Emath)
56 puts(endifEmath);
57 puts(iferrno);
60 if (value > biggest_value)
61 biggest_value = value;
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;
71 int
72 main()
74 puts(iferrno);
76 ERRNOS;
78 if (!done_EDOM || !done_ERANGE)
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);
89 if (!done_ENOSYS)
90 printf("#define ENOSYS %d\n", ++biggest_value);
92 puts(endiferrno);
94 puts("#undef __need_Emath");
95 puts("#ifndef __Emath_defined\n#define __Emath_defined 1\n#endif");
97 exit(0);