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https://github.com/bolero-MURAKAMI/Sprout.git
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48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#ifndef SPROUT_DARKROOM_ACCESS_ACCESS_HPP
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#define SPROUT_DARKROOM_ACCESS_ACCESS_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/utility/forward.hpp>
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namespace sprout {
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namespace darkroom {
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namespace access {
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//
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// element
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//
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template<std::size_t I, typename T>
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struct element
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: public sprout::tuples::tuple_element<I, T>
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{};
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//
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// size
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//
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template<typename T>
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struct size
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: public sprout::tuples::tuple_size<T>
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{};
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//
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// unit
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//
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template<typename T>
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struct unit
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: public sprout::darkroom::access::element<0, T>
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{};
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//
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// get
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//
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template<std::size_t I, typename T>
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SPROUT_CONSTEXPR auto get(
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T&& t
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) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::tuples::get<I>(sprout::forward<T>(t))))
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-> decltype(sprout::tuples::get<I>(sprout::forward<T>(t)))
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{
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return sprout::tuples::get<I>(sprout::forward<T>(t));
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}
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} // namespace access
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} // namespace darkroom
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} // namespace sprout
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#endif // #ifndef SPROUT_DARKROOM_ACCESS_ACCESS_HPP
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