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Diffstat (limited to 'boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp')
| -rw-r--r-- | boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp b/boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp new file mode 100644 index 0000000000..95f110509b --- /dev/null +++ b/boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp @@ -0,0 +1,41 @@ +/*============================================================================= + BOOST_PP_VARIADICS version of BOOST_PP_IS_SEQ inspired from + boost/mpl/aux_/preprocessor/is_seq.hpp, original copyrights goes to : + + Copyright Paul Mensonides 2003 + Copyright Aleksey Gurtovoy 2003-2004 + + Distributed under 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) + +==============================================================================*/ + +#ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_PREPROCESSOR_IS_SEQ_HPP +#define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_PREPROCESSOR_IS_SEQ_HPP + +#include <boost/preprocessor/seq/size.hpp> +#include <boost/preprocessor/arithmetic/dec.hpp> +#include <boost/preprocessor/punctuation/paren.hpp> +#include <boost/preprocessor/cat.hpp> +#include <boost/preprocessor/config/config.hpp> + +#if BOOST_PP_VARIADICS + +#define BOOST_FUSION_PP_IS_SEQ(seq) BOOST_PP_CAT(BOOST_FUSION_PP_IS_SEQ_, \ + BOOST_FUSION_PP_IS_SEQ_0 seq BOOST_PP_RPAREN()) + +#define BOOST_FUSION_PP_IS_SEQ_0(...) \ + BOOST_FUSION_PP_IS_SEQ_1(__VA_ARGS__ + +#define BOOST_FUSION_PP_IS_SEQ_ALWAYS_0(...) \ + 0 + +#define BOOST_FUSION_PP_IS_SEQ_BOOST_FUSION_PP_IS_SEQ_0 \ + BOOST_FUSION_PP_IS_SEQ_ALWAYS_0( + +#define BOOST_FUSION_PP_IS_SEQ_BOOST_FUSION_PP_IS_SEQ_1(...) \ + 1 + +#endif // BOOST_PP_VARIADICS + +#endif |