1 files changed, 46 insertions, 0 deletions
diff --git a/boost/hof/detail/seq.hpp b/boost/hof/detail/seq.hpp
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+++ b/boost/hof/detail/seq.hpp
@@ -0,0 +1,46 @@
+/*=============================================================================
+    Copyright (c) 2012 Paul Fultz II
+    seq.h
+    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_HOF_GUARD_FUNCTION_DETAIL_SEQ_H
+#define BOOST_HOF_GUARD_FUNCTION_DETAIL_SEQ_H
+
+#include <cstdlib>
+
+namespace boost { namespace hof { 
+
+namespace detail {
+
+template<std::size_t ...>
+struct seq 
+{
+    typedef seq type;
+};
+
+template <class, class>
+struct merge_seq;
+
+template <size_t... Xs, size_t... Ys>
+struct merge_seq<seq<Xs...>, seq<Ys...>>
+: seq<Xs..., (sizeof...(Xs)+Ys)...>
+{};
+
+template<std::size_t N>
+struct gens 
+: merge_seq<
+    typename gens<N/2>::type,
+    typename gens<N - N/2>::type
+> 
+{};
+
+template<> struct gens<0> : seq<> {}; 
+template<> struct gens<1> : seq<0> {}; 
+
+
+}
+}} // namespace boost::hof
+
+#endif