| /* Copyright 2003-2008 Joaquin M Lopez Munoz. | |
| * Distributed under the Boost Software License, Version 1.0. | |
| * (See accompanying file LICENSE_1_0.txt or copy at | |
| * http://www.boost.org/LICENSE_1_0.txt) | |
| * | |
| * See http://www.boost.org/libs/multi_index for library home page. | |
| */ | |
| #ifndef BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP | |
| #define BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP | |
| #if defined(_MSC_VER)&&(_MSC_VER>=1200) | |
| #pragma once | |
| #endif | |
| #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ | |
| #include <boost/mpl/empty.hpp> | |
| #include <boost/mpl/is_sequence.hpp> | |
| namespace boost{ | |
| namespace multi_index{ | |
| namespace detail{ | |
| template<typename T> | |
| struct is_index_list | |
| { | |
| BOOST_STATIC_CONSTANT(bool,mpl_sequence=mpl::is_sequence<T>::value); | |
| BOOST_STATIC_CONSTANT(bool,non_empty=!mpl::empty<T>::value); | |
| BOOST_STATIC_CONSTANT(bool,value=mpl_sequence&&non_empty); | |
| }; | |
| } /* namespace multi_index::detail */ | |
| } /* namespace multi_index */ | |
| } /* namespace boost */ | |
| #endif |