Added boost header

test/external/boost/mpl/as_sequence.hpp

@@ -0,0 +1,38 @@
+
+#ifndef BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
+#define BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// Distributed under 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: as_sequence.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
+// $Revision: 49267 $
+
+#include <boost/mpl/is_sequence.hpp>
+#include <boost/mpl/single_view.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/lambda_support.hpp>
+
+namespace boost { namespace mpl {
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(T)
+    >
+struct as_sequence
+    : if_< is_sequence<T>, T, single_view<T> >
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,as_sequence,(T))
+};
+
+BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, as_sequence)
+
+}}
+
+#endif // BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED