preprocessor/keyword/private.hpp

0001
0002 #ifndef BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_HPP_
0003 #define BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_HPP_
0004
0005 // Copyright (C) 2008-2018 Lorenzo Caminiti
0006 // Distributed under the Boost Software License, Version 1.0 (see accompanying
0007 // file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
0008 // See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
0009
0010 #include <boost/contract/detail/preprocessor/keyword/utility/is.hpp>
0011 #include <boost/preprocessor/cat.hpp>
0012
0013 /* PRIVATE */
0014
0015 // Must expand to a single comma `,` (not local macros, do not #undefine).
0016 #define BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_CAT_TO_COMMAprivate ,
0017
0018 // Must expand to empty `` (not local macros, do not #undefine).
0019 #define BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_CAT_TO_EMPTYprivate
0020
0021 /* PUBLIC */
0022
0023 // Precondition: tokens must start with a token concatenable to a macro name
0024 //               (e.g., a literal or integral token).
0025 #define BOOST_CONTRACT_DETAIL_PP_KEYWORD_IS_PRIVATE(tokens) \
0026     BOOST_CONTRACT_DETAIL_PP_KEYWORD_UTILITY_IS( \
0027             BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_CAT_TO_COMMA, tokens)
0028
0029 // Precondition: tokens must start with `private` (this can be
0030 //               checked with `..._IS_PRIVATE` macro above).
0031 #define BOOST_CONTRACT_DETAIL_PP_KEYWORD_REMOVE_PRIVATE(tokens) \
0032     BOOST_PP_CAT(BOOST_CONTRACT_DETAIL_PP_KEYWORD_PRIVATE_CAT_TO_EMPTY, tokens)
0033
0034 #endif // #include guard
0035