(sref): Increase CHAR in the while loop.

diff --git a/lisp/subr.el b/lisp/subr.el
index 2d55e682d3a83d82eea8e0f1554450b2c0c2922d..c14a048fb5231f3214e5b41981aa8a97e80f537b 100644 (file)
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -516,7 +516,8 @@ as returned by the `event-start' and `event-end' functions."
 Please convert your programs to use `aref' with character-base index."
   (let ((byte 0) (char 0))
     (while (< byte byte-index)
-      (setq byte (+ byte (char-bytes (aref string byte)))))
+      (setq byte (+ byte (char-bytes (aref string char)))
+           char (1+ char)))
     (aref string char)))
 
 ;; Some programs still use this as a function.