/* backupfile.c -- make Emacs style backup file names
- Copyright 1990,91,92,93,94,95,96,97,98,99,2000, 2001 Free Software
- Foundation, Inc.
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003 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
# include <config.h>
#endif
+#include <stddef.h>
#include <stdio.h>
-#include <sys/types.h>
-#if HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
-#endif
+#include <string.h>
#if HAVE_DIRENT_H
# include <dirent.h>
# define CLOSEDIR(d) closedir (d)
#endif
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-
-#ifndef HAVE_DECL_GETENV
-"this configure-time declaration test was not run"
-#endif
-#if !HAVE_DECL_GETENV
-char *getenv ();
-#endif
-
-#ifndef HAVE_DECL_MALLOC
-"this configure-time declaration test was not run"
-#endif
-#if !HAVE_DECL_MALLOC
-char *malloc ();
-#endif
+#include <stdlib.h>
#if HAVE_DIRENT_H || HAVE_NDIR_H || HAVE_SYS_DIR_H || HAVE_SYS_NDIR_H
# define HAVE_DIR 1
# define HAVE_DIR 0
#endif
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
+#include <limits.h>
+
/* Upper bound on the string length of an integer converted to string.
302 / 1000 is ceil (log10 (2.0)). Subtract 1 for the sign bit;
add 1 for integer division truncation; add 1 more for a minus sign. */
- Its arg may be any int or unsigned int; it need not be an unsigned char.
- It's guaranteed to evaluate its argument exactly once.
- It's typically faster.
- Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
- only '0' through '9' are digits. Prefer ISDIGIT to isdigit unless
- it's important to use the locale's definition of `digit' even when the
- host does not conform to Posix. */
+ POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
+ ISDIGIT_LOCALE unless it's important to use the locale's definition
+ of `digit' even when the host does not conform to POSIX. */
#define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
#if D_INO_IN_DIRENT
to numbered) backup file name. */
const char *simple_backup_suffix = "~";
-static int max_backup_version PARAMS ((const char *, const char *));
-static int version_number PARAMS ((const char *, const char *, size_t));
+static int max_backup_version (const char *, const char *);
+static int version_number (const char *, const char *, size_t);
/* Return the name of the new backup file for file FILE,
allocated with malloc. Return 0 if out of memory.