Added boost header

test/external/boost/phoenix/fusion/at.hpp

@@ -0,0 +1,48 @@
+/*==============================================================================
+    Copyright (c) 2005-2008 Hartmut Kaiser
+    Copyright (c) 2005-2010 Joel de Guzman
+    Copyright (c) 2010 Thomas Heller
+
+    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)
+==============================================================================*/
+#ifndef BOOST_PHOENIX_FUSION_AT_HPP
+#define BOOST_PHOENIX_FUSION_AT_HPP
+
+#include <boost/phoenix/core/limits.hpp>
+#include <boost/fusion/sequence/intrinsic/at_c.hpp>
+#include <boost/phoenix/core/expression.hpp>
+#include <boost/phoenix/core/meta_grammar.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+    
+BOOST_PHOENIX_DEFINE_EXPRESSION(
+    (boost)(phoenix)(at_c)
+  , (proto::terminal<proto::_>)
+    (meta_grammar)
+)
+
+namespace boost { namespace phoenix
+{
+    template <typename Dummy>
+    struct default_actions::when<rule::at_c, Dummy>
+        : proto::call<
+            proto::functional::at(
+                evaluator(proto::_child_c<1>)
+              , proto::_value(proto::_child_c<0>)
+            )
+        >
+    {};
+
+    template <int N, typename Tuple>
+    inline
+    typename expression::at_c<mpl::int_<N>, Tuple>::type const
+    at_c(Tuple const& tuple)
+    {
+        return
+            expression::
+                at_c<mpl::int_<N>, Tuple>::
+                    make(mpl::int_<N>(), tuple);
+    }
+}}
+
+#endif