| 1 | /*============================================================================= |
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| 2 | Copyright (c) 2014 Paul Fultz II |
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| 3 | unwrap.h |
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| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
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| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | ==============================================================================*/ |
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| 7 | |
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| 8 | #ifndef BOOST_HOF_GUARD_UNWRAP_H |
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| 9 | #define BOOST_HOF_GUARD_UNWRAP_H |
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| 10 | |
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| 11 | #include <type_traits> |
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| 12 | #include <functional> |
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| 13 | |
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| 14 | namespace boost { namespace hof { namespace detail { |
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| 15 | |
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| 16 | template <class T> |
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| 17 | struct unwrap_reference |
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| 18 | { |
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| 19 | typedef T type; |
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| 20 | }; |
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| 21 | template <class T> |
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| 22 | struct unwrap_reference<std::reference_wrapper<T>> |
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| 23 | { |
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| 24 | typedef T& type; |
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| 25 | }; |
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| 26 | |
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| 27 | }}} // namespace boost::hof |
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| 28 | |
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| 29 | #endif |
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| 30 | |
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