--- /dev/null
+// { dg-require-namedlocale "" }
+
+// Copyright (C) 2003, 2005, 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/>.
+
+// 27.8.1.4 Overridden virtual functions
+
+#include <ostream>
+#include <fstream>
+#include <locale>
+#include <string>
+#include <testsuite_hooks.h>
+
+// libstdc++/12868
+void test01()
+{
+ using namespace std;
+ bool test __attribute__((unused)) = true;
+
+ locale loc_is(locale("is_IS.UTF-8"));
+
+ {
+ wofstream out("tmp_12868");
+ out << L"<? xml version=\"1.0\" encoding=\"UTF-8\" ?>\n";
+ out.imbue(loc_is);
+ VERIFY( out.rdbuf()->getloc() == loc_is );
+ out << L"<greeting>Hall\u00f3 heimur</greeting>\n";
+ }
+
+ {
+ wifstream in("tmp_12868");
+ wstring str;
+ getline(in, str);
+ if (str.find(L"encoding=\"UTF-8\"") != wstring::npos)
+ {
+ in.imbue(loc_is);
+ VERIFY( in.rdbuf()->getloc() == loc_is );
+ }
+ getline(in, str);
+ VERIFY( str == L"<greeting>Hall\u00f3 heimur</greeting>" );
+ }
+}
+
+int main()
+{
+ test01();
+}