1 /* Copyright 2003-2013 Joaquin M Lopez Munoz.
2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
6 * See http://www.boost.org/libs/multi_index for library home page.
9 #ifndef BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP
10 #define BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP
16 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
17 #include <boost/mpl/empty.hpp>
18 #include <boost/mpl/is_sequence.hpp>
22 namespace multi_index{
29 BOOST_STATIC_CONSTANT(bool,mpl_sequence=mpl::is_sequence<T>::value);
30 BOOST_STATIC_CONSTANT(bool,non_empty=!mpl::empty<T>::value);
31 BOOST_STATIC_CONSTANT(bool,value=mpl_sequence&&non_empty);
34 } /* namespace multi_index::detail */
36 } /* namespace multi_index */
38 } /* namespace boost */