text: 
  //  (C) Copyright Edward Diener 2011-2015
  //  Use, modification and distribution are subject to 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).
  
  #if !defined(BOOST_VMD_DETAIL_SEQUENCE_TO_SEQ_HPP)
  #define BOOST_VMD_DETAIL_SEQUENCE_TO_SEQ_HPP
  
  #include <boost/preprocessor/control/expr_iif.hpp>
  #include <boost/vmd/detail/modifiers.hpp>
  #include <boost/vmd/detail/mods.hpp>
  #include <boost/vmd/detail/not_empty.hpp>
  #include <boost/vmd/detail/sequence_elem.hpp>
  
  #define BOOST_VMD_DETAIL_SEQUENCE_TO_SEQ(...) \
      BOOST_PP_EXPR_IIF \
          ( \
          BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__)), \
          BOOST_VMD_DETAIL_SEQUENCE_ELEM_PROCESS_TUPLE \
              ( \
              BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__), \
              , \
              BOOST_VMD_TYPE_SEQ, \
              BOOST_VMD_DETAIL_NEW_MODS(BOOST_VMD_ALLOW_RETURN,__VA_ARGS__) \
              ) \
          ) \
  /**/
  
  #define BOOST_VMD_DETAIL_SEQUENCE_TO_SEQ_D(d,...) \
      BOOST_PP_EXPR_IIF \
          ( \
          BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__)), \
          BOOST_VMD_DETAIL_SEQUENCE_ELEM_PROCESS_TUPLE_D \
              ( \
              d, \
              BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__), \
              , \
              BOOST_VMD_TYPE_SEQ, \
              BOOST_VMD_DETAIL_NEW_MODS_D(d,BOOST_VMD_ALLOW_RETURN,__VA_ARGS__) \
              ) \
          ) \
  /**/
  
  #endif /* BOOST_VMD_DETAIL_SEQUENCE_TO_SEQ_HPP */
  