summaryrefslogtreecommitdiff
path: root/include/errno.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/errno.h')
-rw-r--r--include/errno.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/include/errno.h b/include/errno.h
new file mode 100644
index 0000000000..23e0b8f9a9
--- /dev/null
+++ b/include/errno.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/*
+ * ISO C Standard: 4.1.3 Errors <errno.h>
+ */
+
+#ifndef _ERRNO_H
+
+/* The includer defined __need_Emath if he wants only the definitions
+ of EDOM and ERANGE, and not everything else. */
+#ifndef __need_Emath
+#define _ERRNO_H 1
+#include <features.h>
+#endif
+
+__BEGIN_DECLS
+
+/* Get the error number constants from the system-specific file.
+ This file will test __need_Emath and _ERRNO_H. */
+#include <bits/errno.h>
+#undef __need_Emath
+
+#ifdef _ERRNO_H
+
+/* Declare the `errno' variable, unless it's defined as a macro by
+ bits/errno.h. This is the case in GNU, where it is a per-thread
+ variable. This redeclaration using the macro still works, but it
+ will be a function declaration without a prototype and may trigger
+ a -Wstrict-prototypes warning. */
+#ifndef errno
+extern int errno;
+#endif
+
+#ifdef __USE_GNU
+
+/* The full and simple forms of the name with which the program was
+ invoked. These variables are set up automatically at startup based on
+ the value of ARGV[0] (this works only if you use GNU ld). */
+extern char *program_invocation_name, *program_invocation_short_name;
+#endif /* __USE_GNU */
+#endif /* _ERRNO_H */
+
+__END_DECLS
+
+#endif /* _ERRNO_H */
+
+/* The Hurd <bits/errno.h> defines `error_t' as an enumerated type so
+ that printing `error_t' values in the debugger shows the names. We
+ might need this definition sometimes even if this file was included
+ before. */
+#if defined __USE_GNU || defined __need_error_t
+# ifndef __error_t_defined
+typedef int error_t;
+# define __error_t_defined 1
+# endif
+# undef __need_error_t
+#endif