From 255955585c922ec5e303df184057b7781fcee345 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 15 Jan 2015 15:26:03 +0000
Subject: * io.c (rb_io_close_m): Don't raise when the IO object is closed.  
 [ruby-core:67444] [Feature #10718]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49260 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'io.c')

diff --git a/io.c b/io.c
index c9849715c0..c99f0c2a7e 100644
--- a/io.c
+++ b/io.c
@@ -4415,11 +4415,18 @@ rb_io_close(VALUE io)
  *
  *  If <em>ios</em> is opened by <code>IO.popen</code>,
  *  <code>close</code> sets <code>$?</code>.
+ *
+ *  Calling this method on closed IO object is just ignored since Ruby 2.3.
  */
 
 static VALUE
 rb_io_close_m(VALUE io)
 {
+    rb_io_t *fptr = RFILE(io)->fptr;
+    rb_io_check_initialized(fptr);
+    if (fptr->fd < 0) {
+        return Qnil;
+    }
     rb_io_check_closed(RFILE(io)->fptr);
     rb_io_close(io);
     return Qnil;
-- 
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