* string.c (rb_str_rindex): comparison length should be based on

bytes, not characters.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14336 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -8,6 +8,9 @@ Wed Dec 19 22:59:52 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* string.c (rb_str_chomp_bang): wrong adjust condition.
 
+	* string.c (rb_str_rindex): comparison length should be based on
+	  bytes, not characters.
+
 Wed Dec 19 21:42:18 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* re.c (rb_reg_regsub): should set checked encoding.

string.c

@@ -1569,6 +1569,7 @@ rb_str_rindex(VALUE str, VALUE sub, long pos)
     sbeg = RSTRING_PTR(str);
     e = RSTRING_END(str);
     t = RSTRING_PTR(sub);
+    slen = RSTRING_LEN(sub);
     for (;;) {
 	s = str_nth(sbeg, e, pos, enc, asc);
 	if (!s) return -1;