# /* ************************************************************************** # * * # * (C) Copyright Edward Diener 2014. # * 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) # * * # ************************************************************************** */ # # /* See http://www.boost.org for most recent version. */ # # if BOOST_PP_VARIADICS # include # include # define A_TUPLE (*,#,zz) # define A_TUPLE2 (*,#,(zz,44,(e7))) # define A_TUPLE_PLUS (mmf,34,^^,!) 456 # define PLUS_ATUPLE yyt (j,ii%) # define JDATA ggh # define NOT_TUPLE y6() # define NOT_TUPLE2 &(kkkgg,(e)) # define A_SEQ (r)($)(#) # define AN_ARRAY (4,(5,7,f,x)) # define A_LIST (e,(g,(&,BOOST_PP_NIL))) # define DATA (5 + 3) * 4 # define DATA2 4 * (5 + 3) # define DATA3 4 * (5 + 3) * (2 + 1) # define DATA4 (5 + 3) * (2 + 1) * 4 // is_begin_parens BEGIN BOOST_PP_IS_BEGIN_PARENS() == 0 END BEGIN BOOST_PP_IS_BEGIN_PARENS(A_TUPLE) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS(A_TUPLE2) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS(A_TUPLE_PLUS) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS(PLUS_ATUPLE) == 0 END BEGIN BOOST_PP_IS_BEGIN_PARENS(JDATA) == 0 END BEGIN BOOST_PP_IS_BEGIN_PARENS(NOT_TUPLE) == 0 END BEGIN BOOST_PP_IS_BEGIN_PARENS(NOT_TUPLE2) == 0 END BEGIN BOOST_PP_IS_BEGIN_PARENS(A_SEQ) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS(AN_ARRAY) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS(A_LIST) == 1 END BEGIN BOOST_PP_IS_BEGIN_PARENS((y)2(x)) == 1 END // remove_parens BEGIN BOOST_PP_REMOVE_PARENS(DATA) == 17 END BEGIN BOOST_PP_REMOVE_PARENS(DATA2)== 32 END BEGIN BOOST_PP_REMOVE_PARENS(DATA3)== 96 END BEGIN BOOST_PP_REMOVE_PARENS(DATA4)== 41 END #endif