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
40