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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 |