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+// The Art of C++ / Sequences
+// Copyright (c) 2015 Daniel Frey
+
+#ifndef TAOCPP_SEQUENCES_INCLUDE_MAP_HPP
+#define TAOCPP_SEQUENCES_INCLUDE_MAP_HPP
+
+#include <cstddef>
+#include <utility>
+
+#include "integer_sequence.hpp"
+#include "select.hpp"
+
+namespace tao
+{
+ namespace seq
+ {
+ template< typename, typename >
+ struct map;
+
+ template< std::size_t... Ns, typename M >
+ struct map< index_sequence< Ns... >, M >
+ {
+ using type = integer_sequence< typename M::value_type, select< Ns, M >::value... >;
+ };
+
+ template< typename S, typename M >
+ using map_t = typename map< S, M >::type;
+ }
+}
+
+#endif // TAOCPP_SEQUENCES_INCLUDE_MAP_HPP