From f6a82772e6f857856edb37fcb43a892b6022780f Mon Sep 17 00:00:00 2001
From: Tomoyuki Sahara <tsahara@iij.ad.jp>
Date: Fri, 30 Sep 2016 17:10:55 +0900
Subject: eof? should raise an IOError if it is not opened for reading.

---
 mrblib/io.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'mrblib')

diff --git a/mrblib/io.rb b/mrblib/io.rb
index 8408aea87..0b10c82aa 100644
--- a/mrblib/io.rb
+++ b/mrblib/io.rb
@@ -133,6 +133,7 @@ class IO
   end
 
   def eof?
+    _check_readable
     begin
       buf = _read_buf
       return buf.size == 0
-- 
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