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diff --git a/libcutl/cutl/xml/value-traits.hxx b/libcutl/cutl/xml/value-traits.hxx
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+++ b/libcutl/cutl/xml/value-traits.hxx
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+// file      : cutl/xml/value-traits.hxx
+// copyright : Copyright (c) 2009-2013 Code Synthesis Tools CC
+// license   : MIT; see accompanying LICENSE file
+
+#ifndef CUTL_XML_VALUE_TRAITS_HXX
+#define CUTL_XML_VALUE_TRAITS_HXX
+
+#include <string>
+#include <cstddef> // std::size_t
+
+#include <cutl/details/export.hxx>
+
+namespace cutl
+{
+  namespace xml
+  {
+    class parser;
+    class serializer;
+
+    template <typename T>
+    struct default_value_traits
+    {
+      static T
+      parse (std::string, const parser&);
+
+      static std::string
+      serialize (const T&, const serializer&);
+    };
+
+    template <>
+    struct LIBCUTL_EXPORT default_value_traits<bool>
+    {
+      static bool
+      parse (std::string, const parser&);
+
+      static std::string
+      serialize (bool v, const serializer&)
+      {
+        return v ? "true" : "false";
+      }
+    };
+
+    template <typename T>
+    struct value_traits: default_value_traits<T> {};
+
+    template <typename T, std::size_t N>
+    struct value_traits<T[N]>: default_value_traits<const T*> {};
+  }
+}
+
+#include <cutl/xml/value-traits.txx>
+
+#endif // CUTL_XML_VALUE_TRAITS_HXX