2 // (C) Copyright Edward Diener 2011-2015
3 // Use, modification and distribution are subject to the Boost Software License,
4 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt).
7 #if !defined(BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP)
8 #define BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP
10 #include <boost/preprocessor/logical/bitand.hpp>
11 #include <boost/preprocessor/logical/bitnor.hpp>
12 #include <boost/preprocessor/tuple/elem.hpp>
13 #include <boost/vmd/is_empty.hpp>
14 #include <boost/vmd/detail/modifiers.hpp>
15 #include <boost/vmd/detail/not_empty.hpp>
16 #include <boost/vmd/detail/sequence_elem.hpp>
18 #define BOOST_VMD_DETAIL_IS_MULTI_TUPLE(tuple) \
21 BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(0,tuple)), \
22 BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(1,tuple)) \
26 #define BOOST_VMD_DETAIL_IS_UNARY_TUPLE(tuple) \
29 BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_PP_TUPLE_ELEM(0,tuple)), \
30 BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(1,tuple)) \
36 #define BOOST_VMD_DETAIL_IS_UNARY(vseq) \
37 BOOST_VMD_DETAIL_IS_UNARY_TUPLE \
39 BOOST_VMD_DETAIL_SEQUENCE_ELEM(BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
43 #define BOOST_VMD_DETAIL_IS_UNARY_D(d,vseq) \
44 BOOST_VMD_DETAIL_IS_UNARY_TUPLE \
46 BOOST_VMD_DETAIL_SEQUENCE_ELEM_D(d,BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
52 #define BOOST_VMD_DETAIL_IS_MULTI(vseq) \
53 BOOST_VMD_DETAIL_IS_MULTI_TUPLE \
55 BOOST_VMD_DETAIL_SEQUENCE_ELEM(BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
59 #define BOOST_VMD_DETAIL_IS_MULTI_D(d,vseq) \
60 BOOST_VMD_DETAIL_IS_MULTI_TUPLE \
62 BOOST_VMD_DETAIL_SEQUENCE_ELEM_D(d,BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
66 #endif /* BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP */