Updated boost to v1.55.0

[rsem.git] / boost / fusion / algorithm / transformation / push_back.hpp

diff --git a/boost/fusion/algorithm/transformation/push_back.hpp b/boost/fusion/algorithm/transformation/push_back.hpp
new file mode 100644 (file)
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+++ b/boost/fusion/algorithm/transformation/push_back.hpp
@@ -0,0 +1,46 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_PUSH_BACK_07162005_0235)
+#define FUSION_PUSH_BACK_07162005_0235
+
+#include <boost/fusion/support/detail/as_fusion_element.hpp>
+#include <boost/fusion/view/joint_view/joint_view.hpp>
+#include <boost/fusion/view/single_view/single_view.hpp>
+#include <boost/fusion/support/is_sequence.hpp>
+#include <boost/utility/enable_if.hpp>
+
+namespace boost { namespace fusion
+{
+    namespace result_of
+    {
+        template <typename Sequence, typename T>
+        struct push_back
+        {
+            typedef fusion::single_view<typename detail::as_fusion_element<T>::type> single_view;
+            typedef joint_view<Sequence, single_view const> type;
+        };
+    }
+
+    template <typename Sequence, typename T>
+    inline 
+    typename
+        lazy_enable_if<
+            traits::is_sequence<Sequence>
+          , result_of::push_back<Sequence const, T>
+        >::type
+    push_back(Sequence const& seq, T const& x)
+    {
+        typedef typename result_of::push_back<Sequence const, T> push_back;
+        typedef typename push_back::single_view single_view; 
+        typedef typename push_back::type result; 
+        single_view x_(x);
+        return result(seq, x_);
+    }
+}}
+
+#endif
+