* README: Document signed integer overflow situation more

[gnulib.git] / lib / error.h

diff --git a/lib/error.h b/lib/error.h
index 481c54d..5a5f247 100644 (file)
--- a/lib/error.h
+++ b/lib/error.h
@@ -1,5 +1,6 @@
-/* error.h -- declaration for error-reporting function
-   Copyright (C) 1995 Free Software Foundation, Inc.
+/* Declaration for error-reporting function
+   Copyright (C) 1995, 1996, 1997, 2003, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -11,12 +12,12 @@
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#ifndef _error_h_
-#define _error_h_
+#ifndef _ERROR_H
+#define _ERROR_H 1
 
 #ifndef __attribute__
 /* This feature is available in gcc versions 2.5 and later.  */
@@ -31,14 +32,35 @@
 # endif
 #endif
 
-#if __STDC__
-void error (int, int, const char *, ...) \
-  __attribute__ ((__format__ (__printf__, 3, 4)));
-#else
-void error ();
+#ifdef __cplusplus
+extern "C" {
 #endif
 
+/* Print a message with `fprintf (stderr, FORMAT, ...)';
+   if ERRNUM is nonzero, follow it with ": " and strerror (ERRNUM).
+   If STATUS is nonzero, terminate the program with `exit (STATUS)'.  */
+
+extern void error (int __status, int __errnum, const char *__format, ...)
+     __attribute__ ((__format__ (__printf__, 3, 4)));
+
+extern void error_at_line (int __status, int __errnum, const char *__fname,
+                          unsigned int __lineno, const char *__format, ...)
+     __attribute__ ((__format__ (__printf__, 5, 6)));
+
+/* If NULL, error will flush stdout, then print on stderr the program
+   name, a colon and a space.  Otherwise, error will call this
+   function without parameters instead.  */
+extern void (*error_print_progname) (void);
+
 /* This variable is incremented each time `error' is called.  */
 extern unsigned int error_message_count;
 
-#endif /* _error_h_ */
+/* Sometimes we want to have at most one error per line.  This
+   variable controls whether this mode is selected or not.  */
+extern int error_one_per_line;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* error.h */