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diff --git a/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_character/wchar_t/5.cc b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_character/wchar_t/5.cc
new file mode 100644
index 00000000..80f6e475
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_character/wchar_t/5.cc
@@ -0,0 +1,74 @@
+// Copyright (C) 2005, 2009 Free Software Foundation
+//
+// 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
+// .
+
+// 27.6.2.5.4 basic_ostream character inserters
+
+#include
+#include
+#include
+#include
+
+// ostringstream and large strings number 2
+void
+test05()
+{
+ bool test __attribute__((unused)) = true;
+ std::wstring str05, str10;
+
+ typedef std::wostream::pos_type pos_type;
+ typedef std::wostream::off_type off_type;
+ std::wstring str01;
+ const int size = 1000;
+
+ // initialize string
+ for(int i=0 ; i < size; i++) {
+ str01 += L'1';
+ str01 += L'2';
+ str01 += L'3';
+ str01 += L'4';
+ str01 += L'5';
+ str01 += L'6';
+ str01 += L'7';
+ str01 += L'8';
+ str01 += L'9';
+ str01 += L'\n';
+ }
+
+ // test 1: out
+ std::wostringstream sstr01(str01, std::ios_base::out);
+ std::wostringstream sstr02;
+ sstr02 << str01;
+ str05 = sstr01.str();
+ str10 = sstr02.str();
+ VERIFY( str05 == str01 );
+ VERIFY( str10 == str01 );
+
+ // test 2: in | out
+ std::wostringstream sstr04(str01, std::ios_base::out | std::ios_base::in);
+ std::wostringstream sstr05(std::ios_base::in | std::ios_base::out);
+ sstr05 << str01;
+ str05 = sstr04.str();
+ str10 = sstr05.str();
+ VERIFY( str05 == str01 );
+ VERIFY( str10 == str01 );
+}
+
+int main()
+{
+ test05();
+ return 0;
+}