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https://github.com/bolero-MURAKAMI/Sprout.git
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46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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Copyright (C) 2011 RiSK (sscrisk)
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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_FUNCTIONAL_MODULUS_HPP
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#define SPROUT_FUNCTIONAL_MODULUS_HPP
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#include <utility>
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#include <sprout/config.hpp>
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#include <sprout/utility/forward.hpp>
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namespace sprout {
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// 20.8.4 Arithmetic operations
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template<typename T = void>
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struct modulus {
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public:
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typedef T first_argument_type;
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typedef T second_argument_type;
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typedef T result_type;
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public:
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SPROUT_CONSTEXPR T operator()(T const& x, T const& y) const {
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return x % y;
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}
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};
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template<>
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struct modulus<void> {
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public:
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typedef void is_transparent;
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public:
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template<typename T, typename U>
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SPROUT_CONSTEXPR decltype(std::declval<T>() % std::declval<U>())
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operator()(T&& x, U&& y)
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const SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(std::declval<T>() % std::declval<U>()))
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{
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return sprout::forward<T>(x) % sprout::forward<U>(y);
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}
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};
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} // namespace sprout
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#endif // #ifndef SPROUT_FUNCTIONAL_MODULUS_HPP
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