ceph/src/boost/boost/vmd/detail/sequence_to_tuple.hpp

   1
   2 //  (C) Copyright Edward Diener 2011-2015
   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_DETAIL_SEQUENCE_TO_TUPLE_HPP)
   8 #define BOOST_VMD_DETAIL_SEQUENCE_TO_TUPLE_HPP
   9
  10 #include <boost/preprocessor/control/expr_iif.hpp>
  11 #include <boost/vmd/detail/modifiers.hpp>
  12 #include <boost/vmd/detail/mods.hpp>
  13 #include <boost/vmd/detail/not_empty.hpp>
  14 #include <boost/vmd/detail/sequence_elem.hpp>
  15
  16 #define BOOST_VMD_DETAIL_SEQUENCE_TO_TUPLE(...) \
  17     BOOST_PP_EXPR_IIF \
  18         ( \
  19         BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__)), \
  20         BOOST_VMD_DETAIL_SEQUENCE_ELEM_PROCESS_TUPLE \
  21             ( \
  22             BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__), \
  23             , \
  24             BOOST_VMD_TYPE_TUPLE, \
  25             BOOST_VMD_DETAIL_NEW_MODS(BOOST_VMD_ALLOW_RETURN,__VA_ARGS__) \
  26             ) \
  27         ) \
  28 /**/
  29
  30 #define BOOST_VMD_DETAIL_SEQUENCE_TO_TUPLE_D(d,...) \
  31     BOOST_PP_EXPR_IIF \
  32         ( \
  33         BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__)), \
  34         BOOST_VMD_DETAIL_SEQUENCE_ELEM_PROCESS_TUPLE_D \
  35             ( \
  36             d, \
  37             BOOST_VMD_DETAIL_SEQUENCE_ELEM_GET_VSEQ(__VA_ARGS__), \
  38             , \
  39             BOOST_VMD_TYPE_TUPLE, \
  40             BOOST_VMD_DETAIL_NEW_MODS_D(d,BOOST_VMD_ALLOW_RETURN,__VA_ARGS__) \
  41             ) \
  42         ) \
  43 /**/
  44
  45 #endif /* BOOST_VMD_DETAIL_SEQUENCE_TO_TUPLE_HPP */