support/detail/is_native_fusion_sequence.hpp

0001 /*=============================================================================
0002     Copyright (c) 2018 Kohei Takahashi
0003
0004     Distributed under the Boost Software License, Version 1.0. (See accompanying
0005     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 ==============================================================================*/
0007 #ifndef BOOST_FUSION_IS_NATIVE_FUSION_SEQUENCE
0008 #define BOOST_FUSION_IS_NATIVE_FUSION_SEQUENCE
0009
0010 #include <boost/fusion/support/config.hpp>
0011 #include <boost/fusion/support/sequence_base.hpp>
0012 #include <boost/mpl/and.hpp>
0013 #include <boost/type_traits/is_complete.hpp>
0014 #include <boost/type_traits/is_convertible.hpp>
0015
0016 namespace boost { namespace fusion { namespace detail
0017 {
0018     template <typename Sequence>
0019     struct is_native_fusion_sequence
0020       : mpl::and_<
0021           is_complete<Sequence>
0022         , is_convertible<Sequence, detail::from_sequence_convertible_type>
0023       >
0024     {};
0025 }}}
0026
0027 #endif