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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2014 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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#ifndef SPROUT_CONTAINER_DEEP_INTERNAL_HPP
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#define SPROUT_CONTAINER_DEEP_INTERNAL_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/container/internal.hpp>
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#include <sprout/type_traits/identity.hpp>
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namespace sprout {
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namespace containers {
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namespace detail {
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template<typename Container, typename Prev, typename = void>
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struct deep_internal_impl
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: public sprout::containers::detail::deep_internal_impl<
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typename sprout::containers::internal<Container>::type, Container
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>
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{};
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template<typename Container, typename Prev>
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struct deep_internal_impl<
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Container, Prev,
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typename std::enable_if<std::is_same<Container, Prev&&>::value>::type
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>
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: public sprout::identity<Container>
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{};
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} // namespace detail
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//
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// deep_internal
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//
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template<typename Container>
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struct deep_internal
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: public sprout::containers::detail::deep_internal_impl<
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typename sprout::containers::internal<Container>::type, Container
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>
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{};
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} // namespace containers
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} // namespace sprout
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#endif // #ifndef SPROUT_CONTAINER_DEEP_INTERNAL_HPP
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