1 | |
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). |
6 | |
7 | #if !defined(BOOST_VMD_IS_SEQ_HPP) |
8 | #define BOOST_VMD_IS_SEQ_HPP |
9 | |
10 | #include <boost/vmd/detail/setup.hpp> |
11 | |
12 | #if BOOST_PP_VARIADICS |
13 | |
14 | #include <boost/vmd/detail/is_seq.hpp> |
15 | |
16 | /* |
17 | |
18 | The succeeding comments in this file are in doxygen format. |
19 | |
20 | */ |
21 | |
22 | /** \file |
23 | */ |
24 | |
25 | /** \def BOOST_VMD_IS_SEQ(sequence) |
26 | |
27 | \brief Determines if a sequence is a Boost PP seq. |
28 | |
29 | The macro checks that the sequence is a Boost PP seq. |
30 | It returns 1 if it is a seq, else if returns 0. |
31 | |
32 | sequence = a possible Boost PP seq |
33 | |
34 | returns = 1 if it a seq, else returns 0. |
35 | |
36 | A single set of parentheses, with a single element, |
37 | is parsed as a tuple and not a seq. To be parsed as |
38 | a seq the input needs to be more than one consecutive |
39 | sets of parentheses, each with a single element of data. |
40 | |
41 | */ |
42 | |
43 | #define BOOST_VMD_IS_SEQ(sequence) \ |
44 | BOOST_VMD_DETAIL_IS_SEQ(sequence) \ |
45 | /**/ |
46 | |
47 | /** \def BOOST_VMD_IS_SEQ_D(d,sequence) |
48 | |
49 | \brief Determines if a sequence is a Boost PP seq. Re-entrant version. |
50 | |
51 | The macro checks that the sequence is a Boost PP seq. |
52 | It returns 1 if it is a seq, else if returns 0. |
53 | |
54 | d = The next available BOOST_PP_WHILE iteration. |
55 | sequence = a possible Boost PP seq |
56 | |
57 | returns = 1 if it a seq, else returns 0. |
58 | |
59 | A single set of parentheses, with a single element, |
60 | is parsed as a tuple and not a seq. To be parsed as |
61 | a seq the input needs to be more than one consecutive |
62 | sets of parentheses, each with a single element of data. |
63 | |
64 | */ |
65 | |
66 | #define BOOST_VMD_IS_SEQ_D(d,sequence) \ |
67 | BOOST_VMD_DETAIL_IS_SEQ_D(d,sequence) \ |
68 | /**/ |
69 | |
70 | #endif /* BOOST_PP_VARIADICS */ |
71 | #endif /* BOOST_VMD_IS_SEQ_HPP */ |
72 | |