1 files changed, 59 insertions, 0 deletions
diff --git a/boost/fusion/adapted/boost_tuple/detail/build_cons.hpp b/boost/fusion/adapted/boost_tuple/detail/build_cons.hpp
new file mode 100644
index 0000000000..216fb0a614
--- /dev/null
+++ b/boost/fusion/adapted/boost_tuple/detail/build_cons.hpp
@@ -0,0 +1,59 @@
+/*=============================================================================
+    Copyright (c) 2012-2014 Kohei Takahashi
+
+    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(BOOST_FUSION_BUILD_CONS_10172012_0130)
+#define BOOST_FUSION_BUILD_CONS_10172012_0130
+
+#include <boost/tuple/tuple.hpp>
+#include <boost/fusion/iterator/equal_to.hpp>
+#include <boost/fusion/iterator/next.hpp>
+#include <boost/fusion/iterator/value_of.hpp>
+#include <boost/fusion/iterator/deref.hpp>
+
+namespace boost { namespace fusion { namespace detail
+{
+    template <
+        typename First
+      , typename Last
+      , bool is_empty = result_of::equal_to<First, Last>::value>
+    struct build_tuple_cons;
+
+    template <typename First, typename Last>
+    struct build_tuple_cons<First, Last, true>
+    {
+        typedef boost::tuples::null_type type;
+
+        BOOST_FUSION_GPU_ENABLED
+        static type
+        call(First const&, Last const&)
+        {
+            return type();
+        }
+    };
+
+    template <typename First, typename Last>
+    struct build_tuple_cons<First, Last, false>
+    {
+        typedef
+            build_tuple_cons<typename result_of::next<First>::type, Last>
+        next_build_tuple_cons;
+
+        typedef boost::tuples::cons<
+            typename result_of::value_of<First>::type
+          , typename next_build_tuple_cons::type>
+        type;
+
+        BOOST_FUSION_GPU_ENABLED
+        static type
+        call(First const& f, Last const& l)
+        {
+            typename result_of::value_of<First>::type v = *f;
+            return type(v, next_build_tuple_cons::call(fusion::next(f), l));
+        }
+    };
+}}}
+
+#endif