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https://github.com/bolero-MURAKAMI/Sprout.git
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51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
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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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#ifndef SPROUT_TPP_ALGORITHM_MAX_ELEMENT_HPP
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#define SPROUT_TPP_ALGORITHM_MAX_ELEMENT_HPP
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#include <sprout/config.hpp>
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#include <sprout/type_traits/integral_constant.hpp>
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#include <sprout/type_traits/common_decay.hpp>
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namespace sprout {
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namespace tpp {
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namespace detail {
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template<typename T, T... Values>
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struct max_element_impl;
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template<typename T, T Value>
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struct max_element_impl<T, Value>
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: public sprout::integral_constant<T, Value>
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{};
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template<typename T, T Value1, T Value2>
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struct max_element_impl<T, Value1, Value2>
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: public sprout::integral_constant<T, (Value1 < Value2 ? Value2 : Value1)>
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{};
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template<typename T, T Value1, T Value2, T... Tail>
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struct max_element_impl<T, Value1, Value2, Tail...>
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: public sprout::tpp::detail::max_element_impl<T, sprout::tpp::detail::max_element_impl<T, Value1, Value2>::value, Tail...>
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{};
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} // namespace detail
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//
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// max_element_c
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//
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template<typename T, T... Values>
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struct max_element_c
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: public sprout::tpp::detail::max_element_impl<T, Values...>
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{};
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//
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// max_element
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//
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template<typename... Types>
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struct max_element
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: public sprout::tpp::max_element_c<typename sprout::common_decay<decltype(Types::value)...>::type, Types::value...>
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{};
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} // namespace tpp
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} // namespace sprout
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#endif // #ifndef SPROUT_TPP_ALGORITHM_MAX_ELEMENT_HPP
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