2013-08-08 09:54:33 +00:00
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/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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2011-11-13 08:54:38 +00:00
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#ifndef SPROUT_WEED_DETAIL_IS_BOTH_UNUSED_HPP
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#define SPROUT_WEED_DETAIL_IS_BOTH_UNUSED_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/weed/traits/type/is_unused.hpp>
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namespace sprout {
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namespace weed {
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namespace detail {
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template<typename T, typename U, typename = void>
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struct is_both_unused
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: public std::false_type
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{};
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template<typename T, typename U>
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struct is_both_unused<
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T,
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U,
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typename std::enable_if<
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sprout::weed::traits::is_unused<T>::value
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&& sprout::weed::traits::is_unused<U>::value
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>::type
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>
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: public std::true_type
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{};
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} // namespace detail
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} // namespace weed
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} // namespace sprout
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#endif // #ifndef SPROUT_WEED_DETAIL_IS_BOTH_UNUSED_HPP
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