2 // (C) Copyright Edward Diener 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_SEQ_TO_ARRAY_HPP)
8 #define BOOST_VMD_SEQ_TO_ARRAY_HPP
10 #include <boost/vmd/detail/setup.hpp>
12 #if BOOST_PP_VARIADICS
14 #include <boost/preprocessor/control/iif.hpp>
15 #include <boost/preprocessor/seq/to_array.hpp>
16 #include <boost/vmd/identity.hpp>
17 #include <boost/vmd/is_empty.hpp>
21 The succeeding comments in this file are in doxygen format.
28 /** \def BOOST_VMD_SEQ_TO_ARRAY(seq)
30 \brief converts a seq to an array.
32 seq = seq to be converted.
34 If the seq is an empty seq it is converted to an array with 0 elements.
35 Otherwise the seq is converted to an array with the same number of elements as the seq.
38 #define BOOST_VMD_SEQ_TO_ARRAY(seq) \
39 BOOST_VMD_IDENTITY_RESULT \
43 BOOST_VMD_IS_EMPTY(seq), \
44 BOOST_VMD_IDENTITY((0,())), \
45 BOOST_PP_SEQ_TO_ARRAY \
51 #endif /* BOOST_PP_VARIADICS */
52 #endif /* BOOST_VMD_SEQ_TO_ARRAY_HPP */