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- // Copyright (C) 2009-2012 Lorenzo Caminiti
- // Distributed under the Boost Software License, Version 1.0
- // (see accompanying file LICENSE_1_0.txt or a copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- // Home at http://www.boost.org/libs/local_function
- #ifndef BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_FACILITY_ADD_HPP_
- #define BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_FACILITY_ADD_HPP_
- #include <boost/preprocessor/control/expr_iif.hpp>
- #include <boost/preprocessor/logical/compl.hpp>
- // `is_front_macro(tokens)` is 1 if `tokens` start w/ `keyword` to add, else 0.
- #define BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_FACILITY_ADD_FRONT( \
- tokens, is_front_macro, keyword) \
- BOOST_PP_EXPR_IIF(BOOST_PP_COMPL(is_front_macro(tokens)), keyword) tokens
- // `is_back_macro(tokens)` is 1 if `tokens` end with `keyword` to add, else 0.
- #define BOOST_LOCAL_FUNCTION_DETAIL_PP_KEYWORD_FACILITY_ADD_BACK( \
- tokens, is_back_macro, keyword) \
- tokens BOOST_PP_EXPR_IIF(BOOST_PP_COMPL(is_back_macro(tokens)), keyword)
- #endif // #include guard
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