Added boost header

test/external/boost/parameter/aux_/template_keyword.hpp

@@ -0,0 +1,47 @@
+// Copyright Daniel Wallin 2006. Use, modification and distribution is
+// subject to the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#ifndef BOOST_PARAMETER_TEMPLATE_KEYWORD_060203_HPP
+# define BOOST_PARAMETER_TEMPLATE_KEYWORD_060203_HPP
+
+# include <boost/mpl/and.hpp>
+# include <boost/mpl/not.hpp>
+# include <boost/type_traits/is_convertible.hpp>
+# include <boost/type_traits/is_reference.hpp>
+
+namespace boost { namespace parameter { 
+
+namespace aux 
+{
+
+  struct template_keyword_tag {}; 
+
+  template <class T, class U>
+  struct is_pointer_convertible
+    : is_convertible<T*, U*>
+  {};
+
+  template <class T>
+  struct is_template_keyword
+    : mpl::and_<
+          mpl::not_<is_reference<T> >
+        , is_pointer_convertible<T, template_keyword_tag>
+      >
+  {};
+
+} // namespace aux
+
+template <class Tag, class T>
+struct template_keyword
+  : aux::template_keyword_tag
+{
+    typedef Tag key_type;
+    typedef T value_type;
+    typedef value_type reference;
+};
+
+}} // namespace boost::parameter
+
+#endif // BOOST_PARAMETER_TEMPLATE_KEYWORD_060203_HPP
+