| /* 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); |
| } |