文件操作 - is_xxx.hpp
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文件: /usr/include/boost/detail/is_xxx.hpp
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// Copyright David Abrahams 2005. Distributed under 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_DETAIL_IS_XXX_DWA20051011_HPP # define BOOST_DETAIL_IS_XXX_DWA20051011_HPP # include <boost/config.hpp> # include <boost/type_traits/integral_constant.hpp> # include <boost/preprocessor/enum_params.hpp> # define BOOST_DETAIL_IS_XXX_DEF(name, qualified_name, nargs) \ template <class T> \ struct is_##name : boost::false_type \ { \ }; \ \ template < BOOST_PP_ENUM_PARAMS_Z(1, nargs, class T) > \ struct is_##name< \ qualified_name< BOOST_PP_ENUM_PARAMS_Z(1, nargs, T) > \ > \ : boost::true_type \ { \ }; #endif // BOOST_DETAIL_IS_XXX_DWA20051011_HPP
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