* io.c (rb_io_s_foreach): argument count check before making

Enumerator.  [ruby-dev:31525]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13119 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -6,6 +6,9 @@ Mon Aug 20 23:28:39 2007  Yukihiro Matsumoto  <matz@ruby-lang.org>
 	* dir.c (dir_foreach): return Enumerator if no block given.
 	  [ruby-dev:31525]
 
+	* io.c (rb_io_s_foreach): argument count check before making
+	  Enumerator.  [ruby-dev:31525]
+
 Mon Aug 20 23:17:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* vm_core.h (struct rb_thread_struct): removed first_func_arg and

array.c

@@ -922,7 +922,7 @@ rb_ary_rindex(int argc, VALUE *argv, VALUE ary)
     long i = RARRAY_LEN(ary);
 
     if (rb_scan_args(argc, argv, "01", &val) == 0) {
-	    RETURN_ENUMERATOR(ary, 0, 0);
+	RETURN_ENUMERATOR(ary, 0, 0);
 	while (i--) {
 	    if (RTEST(rb_yield(RARRAY_PTR(ary)[i])))
 		return LONG2NUM(i);

io.c

@@ -5185,8 +5185,8 @@ rb_io_s_foreach(int argc, VALUE *argv, VALUE self)
     VALUE fname;
     struct foreach_arg arg;
 
-    RETURN_ENUMERATOR(self, argc, argv);
     rb_scan_args(argc, argv, "12", &fname, NULL, NULL);
+    RETURN_ENUMERATOR(self, argc, argv);
     FilePathValue(fname);
     arg.io = rb_io_open(RSTRING_PTR(fname), "r");
     if (NIL_P(arg.io)) return Qnil;