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diff --git a/libstdc++-v3/testsuite/22_locale/ctype/is/char/2.cc b/libstdc++-v3/testsuite/22_locale/ctype/is/char/2.cc
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+++ b/libstdc++-v3/testsuite/22_locale/ctype/is/char/2.cc
@@ -0,0 +1,98 @@
+// { dg-do run { xfail { ! { *-*-linux* } } } }
+// { dg-require-namedlocale "" }
+
+// Copyright (C) 2000, 2001, 2002, 2003, 2004, 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/>.
+
+
+// 22.2.1.3.2 ctype<char> members
+
+#include <locale>
+#include <vector>
+#include <testsuite_hooks.h>
+
+typedef char char_type;
+
+// libstdc++/4456, libstdc++/4457, libstdc++/4458
+void test02()
+{
+  using namespace std;
+  typedef ctype_base::mask	mask;
+  typedef vector<mask> 		vector_type;
+
+  bool test __attribute__((unused)) = true;
+
+  //  const int max = numeric_limits<char>::max();
+  const int max = 255;
+  const int ctype_mask_max = 10;
+  vector_type v_c(max);
+  vector_type v_de(max);
+
+  // "C"
+  locale loc_c = locale::classic();
+  const ctype<char>& ctype_c = use_facet<ctype<char> >(loc_c); 
+  for (int i = 0; i < max; ++i)
+    {
+      char_type c = static_cast<char>(i);
+      mask mask_test = static_cast<mask>(0);
+      mask mask_is = static_cast<mask>(0);
+      for (int j = 0; j <= ctype_mask_max; ++j)
+	{
+	  mask_test = static_cast<mask>(1 << j);
+	  if (ctype_c.is(mask_test, c))
+	    mask_is |= mask_test;
+	}
+      v_c[i] = mask_is;
+    }   
+
+  // "de_DE"
+  locale loc_de = locale("de_DE");
+  const ctype<char>& ctype_de = use_facet<ctype<char> >(loc_de); 
+  for (int i = 0; i < max; ++i)
+    {
+      char_type c = static_cast<char>(i);
+      mask mask_test = static_cast<mask>(0);
+      mask mask_is = static_cast<mask>(0);
+      for (int j = 0; j <= ctype_mask_max; ++j)
+	{
+	  mask_test = static_cast<mask>(1 << j);
+	  if (ctype_de.is(mask_test, c))
+	    mask_is |= mask_test;
+	}
+      v_de[i] = mask_is;
+    }   
+
+#if QUANNUM_VERBOSE_LYRICALLY_ADEPT_BAY_AREA_MCS_MODE
+    for (int i = 0; i < max; ++i)
+    {
+      char_type mark = v_c[i] == v_de[i] ? ' ' : '-';
+      cout << i << ' ' << mark << ' ' << static_cast<char>(i) << '\t' ;
+      cout << "v_c: " << setw(4) << v_c[i] << '\t';
+      cout << "v_de: " << setw(4) << v_de[i] << endl;
+    }
+    cout << (v_c == v_de) << endl;
+#endif
+
+  VERIFY( v_c != v_de );
+}
+
+int main() 
+{
+  test02();
+  return 0;
+}