* vm_eval.c (rb_f_loop): return enumerator if no block given.

[ruby-list:45747]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21095 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Dec 27 18:25:09 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* vm_eval.c (rb_f_loop): return enumerator if no block given.
+	  [ruby-list:45747]
+
 Sat Dec 27 17:08:43 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* .gdbinit (dummy_gdb_enums.special_consts): forces to load debug

vm_eval.c

@@ -560,8 +560,9 @@ loop_i(void)
  */
 
 static VALUE
-rb_f_loop(void)
+rb_f_loop(VALUE self)
 {
+    RETURN_ENUMERATOR(self, 0, 0);
     rb_rescue2(loop_i, (VALUE)0, 0, 0, rb_eStopIteration, (VALUE)0);
     return Qnil;		/* dummy */
 }