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authorDongHun Kwak <dh0128.kwak@samsung.com>2019-12-05 15:12:59 +0900
committerDongHun Kwak <dh0128.kwak@samsung.com>2019-12-05 15:12:59 +0900
commitb8cf34c691623e4ec329053cbbf68522a855882d (patch)
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Imported Upstream version 1.67.0upstream/1.67.0
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+/*=============================================================================
+ 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