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편집 파일: helper_macros.hpp

#ifndef BOOST_CONFIG_HELPER_MACROS_HPP_INCLUDED #define BOOST_CONFIG_HELPER_MACROS_HPP_INCLUDED // Copyright 2001 John Maddock. // Copyright 2017 Peter Dimov. // // 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 // // BOOST_STRINGIZE(X) // BOOST_JOIN(X, Y) // // Note that this header is C compatible. // // Helper macro BOOST_STRINGIZE: // Converts the parameter X to a string after macro replacement // on X has been performed. // #define BOOST_STRINGIZE(X) BOOST_DO_STRINGIZE(X) #define BOOST_DO_STRINGIZE(X) #X // // Helper macro BOOST_JOIN: // The following piece of macro magic joins the two // arguments together, even when one of the arguments is // itself a macro (see 16.3.1 in C++ standard). The key // is that macro expansion of macro arguments does not // occur in BOOST_DO_JOIN2 but does in BOOST_DO_JOIN. // #define BOOST_JOIN(X, Y) BOOST_DO_JOIN(X, Y) #define BOOST_DO_JOIN(X, Y) BOOST_DO_JOIN2(X,Y) #define BOOST_DO_JOIN2(X, Y) X##Y #endif // BOOST_CONFIG_HELPER_MACROS_HPP_INCLUDED