文件操作 - ignore_unused.hpp
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文件: /usr/include/boost/core/ignore_unused.hpp
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// Copyright (c) 2014 Adam Wulkiewicz, Lodz, Poland. // // Use, modification and distribution is subject to the Boost Software License, // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_CORE_IGNORE_UNUSED_HPP #define BOOST_CORE_IGNORE_UNUSED_HPP #include <boost/config.hpp> namespace boost { #ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES template <typename... Ts> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(Ts const& ...) {} template <typename... Ts> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} #else template <typename T1> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(T1 const&) {} template <typename T1, typename T2> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(T1 const&, T2 const&) {} template <typename T1, typename T2, typename T3> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(T1 const&, T2 const&, T3 const&) {} template <typename T1, typename T2, typename T3, typename T4> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(T1 const&, T2 const&, T3 const&, T4 const&) {} template <typename T1, typename T2, typename T3, typename T4, typename T5> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused(T1 const&, T2 const&, T3 const&, T4 const&, T5 const&) {} template <typename T1> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} template <typename T1, typename T2> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} template <typename T1, typename T2, typename T3> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} template <typename T1, typename T2, typename T3, typename T4> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} template <typename T1, typename T2, typename T3, typename T4, typename T5> BOOST_FORCEINLINE BOOST_CXX14_CONSTEXPR void ignore_unused() {} #endif } // namespace boost #endif // BOOST_CORE_IGNORE_UNUSED_HPP
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