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diff --git a/libstdc++-v3/testsuite/ext/stdio_filebuf/char/2.cc b/libstdc++-v3/testsuite/ext/stdio_filebuf/char/2.cc
new file mode 100644
index 00000000..aada638b
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/stdio_filebuf/char/2.cc
@@ -0,0 +1,62 @@
+// 2003-04-12  Paolo Carlini  <pcarlini at unitus dot it>
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009
+// Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// stdio_filebuf.h
+
+// { dg-require-fileio "" }
+
+#include <ext/stdio_filebuf.h>
+#include <cstdio>
+#include <fstream>
+#include <cstring>
+#include <testsuite_hooks.h>
+
+// Small stack-based buffers (i.e., using _M_unbuf) were not flushed
+// out by _M_really_overflow upon overflow.
+void test01()
+{
+  using namespace std;
+  bool test __attribute__((unused)) = true;
+
+  const char* name = "tmp_file1";
+  FILE* file = fopen(name, "w");
+  {
+    using namespace __gnu_cxx;
+    stdio_filebuf<char> sbuf(file, ios_base::out, 2); 
+    sbuf.sputc('T');
+    sbuf.sputc('S');
+    sbuf.sputc('P');
+  }
+  fclose(file);
+
+  filebuf fbuf;
+  fbuf.open(name, ios_base::in);
+  char buf[10];
+  streamsize n = fbuf.sgetn(buf, sizeof(buf));	
+  fbuf.close();
+  
+  VERIFY( n == 3 );
+  VERIFY( !memcmp(buf, "TSP", 3) );
+}
+
+int main()
+{
+  test01();
+}