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diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/9424-in.cc b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/9424-in.cc
new file mode 100644
index 00000000..38b34571
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/extractors_other/wchar_t/9424-in.cc
@@ -0,0 +1,103 @@
+// Copyright (C) 2004, 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/>.
+
+
+// 27.5.2 template class basic_streambuf
+
+#include <cstring>
+#include <cwchar>
+#include <streambuf>
+#include <sstream>
+#include <ostream>
+#include <testsuite_hooks.h>
+
+// libstdc++/9424
+class Outbuf_2 : public std::wstreambuf
+{
+  wchar_t buf[1];
+
+public:
+  Outbuf_2()
+  {
+    setp(buf, buf + 1);
+  }
+
+  int_type overflow(int_type c)
+  {
+    int_type eof = traits_type::eof();
+    
+    if (pptr() < epptr())
+      {
+	if (traits_type::eq_int_type(c, eof))
+	  return traits_type::not_eof(c);
+	
+	*pptr() = traits_type::to_char_type(c);
+	pbump(1);
+	return c;
+      }
+
+    return eof;
+  }
+};
+
+class Inbuf_2 : public std::wstreambuf
+{
+  static const wchar_t buf[];
+  const wchar_t* current;
+  int size;
+
+public:
+  Inbuf_2()
+  {
+    current = buf;
+    size = std::wcslen(buf);
+  }
+  
+  int_type underflow()
+  {
+    if (current < buf + size)
+      return traits_type::to_int_type(*current);
+    return traits_type::eof();
+  }
+  
+  int_type uflow()
+  {
+    if (current < buf + size)
+      return traits_type::to_int_type(*current++);
+    return traits_type::eof();
+  }
+};
+
+const wchar_t Inbuf_2::buf[] = L"Atteivlis";
+
+void test11()
+{
+  bool test __attribute__((unused)) = true;
+
+  Inbuf_2 inbuf1;
+  std::wistream is(&inbuf1);
+  Outbuf_2 outbuf1;
+  is >> &outbuf1;
+  VERIFY( inbuf1.sgetc() == L't' );
+  VERIFY( is.good() );
+}
+
+int main() 
+{
+  test11();
+  return 0;
+}