Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+/* 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