maint: update copyright

[gnulib.git] / lib / backupfile.h

diff --git a/lib/backupfile.h b/lib/backupfile.h
index b9b973c..e2034c7 100644 (file)
--- a/lib/backupfile.h
+++ b/lib/backupfile.h
@@ -1,10 +1,12 @@
 /* backupfile.h -- declarations for making Emacs style backup file names
-   Copyright (C) 1990-1992, 1997-1999 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify
+   Copyright (C) 1990-1992, 1997-1999, 2003-2004, 2009-2014 Free Software
+   Foundation, Inc.
+
+   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
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -12,49 +14,46 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; see the file COPYING.
-   If not, write to the Free Software Foundation,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef BACKUPFILE_H_
 # define BACKUPFILE_H_
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+
 /* When to make backup files. */
 enum backup_type
 {
   /* Never make backups. */
-  none,
+  no_backups,
 
   /* Make simple backups of every file. */
-  simple,
+  simple_backups,
 
   /* Make numbered backups of files that already have numbered backups,
      and simple backups of the others. */
-  numbered_existing,
+  numbered_existing_backups,
 
   /* Make numbered backups of every file. */
-  numbered
+  numbered_backups
 };
 
-# define VALID_BACKUP_TYPE(Type)       \
-  ((Type) == none                      \
-   || (Type) == simple                 \
-   || (Type) == numbered_existing      \
-   || (Type) == numbered)
+# define VALID_BACKUP_TYPE(Type)        \
+  ((unsigned int) (Type) <= numbered_backups)
 
 extern char const *simple_backup_suffix;
 
-# ifndef PARAMS
-#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
-#   define PARAMS(Args) Args
-#  else
-#   define PARAMS(Args) ()
-#  endif
-# endif
+char *find_backup_file_name (char const *, enum backup_type);
+enum backup_type get_version (char const *context, char const *arg);
+enum backup_type xget_version (char const *context, char const *arg);
+void addext (char *, char const *, int);
+
 
-char *find_backup_file_name PARAMS ((char const *, enum backup_type));
-enum backup_type get_version PARAMS ((char const *context, char const *arg));
-enum backup_type xget_version PARAMS ((char const *context, char const *arg));
-void addext PARAMS ((char *, char const *, int));
+# ifdef __cplusplus
+}
+# endif
 
 #endif /* ! BACKUPFILE_H_ */