From 6fe8d987ce2296174dcd3e4f3c382f8114728210 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 24 Dec 2003 05:23:32 +0000
Subject: * ext/stringio/stringio.c (strio_read): clear the buffer argument  
 when returning nil.  [ruby-dev:22363]

* test/ruby/ut_eof.rb (TestEOF::test_eof_0, TestEOF::test_eof_1):
  add buffer argument tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5277 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/stringio/stringio.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'ext/stringio/stringio.c')

diff --git a/ext/stringio/stringio.c b/ext/stringio/stringio.c
index 1bab5b4d1f..8d3275b2b8 100644
--- a/ext/stringio/stringio.c
+++ b/ext/stringio/stringio.c
@@ -851,9 +851,11 @@ strio_read(argc, argv, self)
 	    }
 	    if (len > 0 && ptr->pos >= RSTRING(ptr->string)->len) {
 		ptr->flags |= STRIO_EOF;
+		if (!NIL_P(str)) rb_str_resize(str, 0);
 		return Qnil;
 	    }
 	    else if (ptr->flags & STRIO_EOF) {
+		if (!NIL_P(str)) rb_str_resize(str, 0);
 		return Qnil;
 	    }
 	    break;
-- 
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