ceph/src/boost/libs/fusion/include/boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp

   1 /*=============================================================================
   2     BOOST_PP_VARIADICS version of BOOST_PP_IS_SEQ inspired from
   3     boost/mpl/aux_/preprocessor/is_seq.hpp, original copyrights goes to :
   4
   5     Copyright Paul Mensonides 2003
   6     Copyright Aleksey Gurtovoy 2003-2004
   7
   8     Distributed under the Boost Software License, Version 1.0. (See accompanying
   9     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  10
  11 ==============================================================================*/
  12
  13 #ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_PREPROCESSOR_IS_SEQ_HPP
  14 #define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_PREPROCESSOR_IS_SEQ_HPP
  15
  16 #include <boost/preprocessor/punctuation/paren.hpp>
  17 #include <boost/preprocessor/cat.hpp>
  18 #include <boost/preprocessor/config/config.hpp>
  19
  20 #if BOOST_PP_VARIADICS
  21
  22 #define BOOST_FUSION_PP_IS_SEQ(seq) BOOST_PP_CAT(BOOST_FUSION_PP_IS_SEQ_,       \
  23     BOOST_FUSION_PP_IS_SEQ_0 seq BOOST_PP_RPAREN())
  24
  25 #define BOOST_FUSION_PP_IS_SEQ_0(...)                                           \
  26     BOOST_FUSION_PP_IS_SEQ_1(__VA_ARGS__
  27
  28 #define BOOST_FUSION_PP_IS_SEQ_ALWAYS_0(...)                                    \
  29     0
  30
  31 #define BOOST_FUSION_PP_IS_SEQ_BOOST_FUSION_PP_IS_SEQ_0                         \
  32     BOOST_FUSION_PP_IS_SEQ_ALWAYS_0(
  33
  34 #define BOOST_FUSION_PP_IS_SEQ_BOOST_FUSION_PP_IS_SEQ_1(...)                    \
  35     1
  36
  37 #endif // BOOST_PP_VARIADICS
  38
  39 #endif