is_begin_parens.hpp

00001 # /* **************************************************************************
00002 #  *                                                                          *
00003 #  *     (C) Copyright Edward Diener 2014.
00004 #  *     Distributed under the Boost Software License, Version 1.0. (See
00005 #  *     accompanying file LICENSE_1_0.txt or copy at
00006 #  *     http://www.boost.org/LICENSE_1_0.txt)
00007 #  *                                                                          *
00008 #  ************************************************************************** */
00009 #
00010 # /* See http://www.boost.org for most recent version. */
00011 #
00012 #ifndef MSGPACK_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP
00013 #define MSGPACK_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP
00014 
00015 #if MSGPACK_PP_VARIADICS_MSVC
00016 
00017 #include <msgpack/preprocessor/facilities/empty.hpp>
00018 
00019 #define MSGPACK_PP_DETAIL_VD_IBP_CAT(a, b) MSGPACK_PP_DETAIL_VD_IBP_CAT_I(a, b)
00020 #define MSGPACK_PP_DETAIL_VD_IBP_CAT_I(a, b) MSGPACK_PP_DETAIL_VD_IBP_CAT_II(a ## b)
00021 #define MSGPACK_PP_DETAIL_VD_IBP_CAT_II(res) res
00022 
00023 #define MSGPACK_PP_DETAIL_IBP_SPLIT(i, ...) \
00024     MSGPACK_PP_DETAIL_VD_IBP_CAT(MSGPACK_PP_DETAIL_IBP_PRIMITIVE_CAT(MSGPACK_PP_DETAIL_IBP_SPLIT_,i)(__VA_ARGS__),MSGPACK_PP_EMPTY()) \
00025 /**/
00026 
00027 #define MSGPACK_PP_DETAIL_IBP_IS_VARIADIC_C(...) 1 1
00028 
00029 #else
00030 
00031 #define MSGPACK_PP_DETAIL_IBP_SPLIT(i, ...) \
00032     MSGPACK_PP_DETAIL_IBP_PRIMITIVE_CAT(MSGPACK_PP_DETAIL_IBP_SPLIT_,i)(__VA_ARGS__) \
00033 /**/
00034 
00035 #define MSGPACK_PP_DETAIL_IBP_IS_VARIADIC_C(...) 1
00036 
00037 #endif /* MSGPACK_PP_VARIADICS_MSVC */
00038 
00039 #define MSGPACK_PP_DETAIL_IBP_SPLIT_0(a, ...) a
00040 #define MSGPACK_PP_DETAIL_IBP_SPLIT_1(a, ...) __VA_ARGS__
00041 
00042 #define MSGPACK_PP_DETAIL_IBP_CAT(a, ...) MSGPACK_PP_DETAIL_IBP_PRIMITIVE_CAT(a,__VA_ARGS__)
00043 #define MSGPACK_PP_DETAIL_IBP_PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
00044 
00045 #define MSGPACK_PP_DETAIL_IBP_IS_VARIADIC_R_1 1,
00046 #define MSGPACK_PP_DETAIL_IBP_IS_VARIADIC_R_MSGPACK_PP_DETAIL_IBP_IS_VARIADIC_C 0,
00047 
00048 #endif /* MSGPACK_PREPROCESSOR_DETAIL_IS_BEGIN_PARENS_HPP */