From e3a717512e6d374d5c2355fbeac07d32afffb27b Mon Sep 17 00:00:00 2001
From: Burdette Lamar <BurdetteLamar@Yahoo.com>
Date: Sun, 26 Oct 2025 02:04:40 -0500
Subject: [ruby/stringio] [DOC] Tweaks for StringIO#closed?
 (https://github.com/ruby/stringio/pull/151)

https://github.com/ruby/stringio/commit/94bd4a3d87
---
 ext/stringio/stringio.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index 965355df67..0dbf1fa3ec 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -614,8 +614,16 @@ strio_close_write(VALUE self)
  * call-seq:
  *   closed? -> true or false
  *
- * Returns +true+ if +self+ is closed for both reading and writing,
- * +false+ otherwise.
+ * Returns whether +self+ is closed for both reading and writing:
+ *
+ *   strio = StringIO.new
+ *   strio.closed?     # => false  # Open for reading and writing.
+ *   strio.close_read
+ *   strio.closed?     # => false  # Still open for writing.
+ *   strio.close_write
+ *   strio.closed?     # => true   # Now closed for both.
+ *
+ * Related: StringIO.closed_read?, StringIO.closed_write?.
  */
 static VALUE
 strio_closed(VALUE self)
-- 
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