41 lines
1018 B
Plaintext
41 lines
1018 B
Plaintext
|
/* Copyright 2003-2013 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)
|
||
|
|
#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
|