From: Richard M. Stallman <rms@gnu.org>
Date: Wed, 6 Jul 1994 21:41:47 +0000 (+0000)
Subject: (auto-save-mode): If autosave is off because buffer has
X-Git-Tag: emacs-19.34~7695
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=74b9c2afd86677637b905170848ae92cb6c1e943;p=emacs.git

(auto-save-mode): If autosave is off because buffer has
shrunk, then toggling should turn it on.
---

diff --git a/lisp/files.el b/lisp/files.el
index 5ae8af41e82..8982b4fd396 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -1949,7 +1949,10 @@ With prefix argument ARG, turn auto-saving on if positive, else off."
   (interactive "P")
   (setq buffer-auto-save-file-name
         (and (if (null arg)
-		 (not buffer-auto-save-file-name)
+		 (or (not buffer-auto-save-file-name)
+		     ;; If autosave is off because buffer has shrunk,
+		     ;; then toggling should turn it on.
+		     (< buffer-saved-size 0))
 	       (or (eq arg t) (listp arg) (and (integerp arg) (> arg 0))))
 	     (if (and buffer-file-name auto-save-visited-file-name
 		      (not buffer-read-only))