1 2 // (C) Copyright Edward Diener 2015 3 // Use, modification and distribution are subject to the Boost Software License, 4 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 5 // http://www.boost.org/LICENSE_1_0.txt). 6 7 #if !defined(BOOST_VMD_TUPLE_TO_SEQ_HPP) 8 #define BOOST_VMD_TUPLE_TO_SEQ_HPP 9 10 #include <boost/vmd/detail/setup.hpp> 11 12 #if BOOST_PP_VARIADICS 13 14 #include <boost/preprocessor/control/iif.hpp> 15 #include <boost/preprocessor/tuple/to_seq.hpp> 16 #include <boost/vmd/empty.hpp> 17 #include <boost/vmd/is_empty.hpp> 18 19 /* 20 21 The succeeding comments in this file are in doxygen format. 22 23 */ 24 25 /** \file 26 */ 27 28 /** \def BOOST_VMD_TUPLE_TO_SEQ(tuple) 29 30 \brief converts a tuple to a seq. 31 32 tuple = tuple to be converted. 33 34 If the tuple is an empty tuple it is converted to an empty seq. 35 Otherwise the tuple is converted to a seq with the same number of elements as the tuple. 36 */ 37 38 #define BOOST_VMD_TUPLE_TO_SEQ(tuple) \ 39 BOOST_PP_IIF \ 40 ( \ 41 BOOST_VMD_IS_EMPTY(tuple), \ 42 BOOST_VMD_EMPTY, \ 43 BOOST_PP_TUPLE_TO_SEQ \ 44 ) \ 45 (tuple) \ 46 /**/ 47 48 #endif /* BOOST_PP_VARIADICS */ 49 #endif /* BOOST_VMD_TUPLE_TO_SEQ_HPP */ 50