Add SCons configure checks

[senf.git] / boost_ext / boost / multi_index / detail / base_type.hpp

diff --git a/boost_ext/boost/multi_index/detail/base_type.hpp b/boost_ext/boost/multi_index/detail/base_type.hpp
new file mode 100644 (file)
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+++ b/boost_ext/boost/multi_index/detail/base_type.hpp
@@ -0,0 +1,87 @@
+/* Copyright 2003-2005 Joaquín M López Muñoz.
+ * 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_BASE_TYPE_HPP
+#define BOOST_MULTI_INDEX_DETAIL_BASE_TYPE_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/detail/workaround.hpp>
+#include <boost/mpl/at.hpp>
+#include <boost/mpl/apply.hpp>
+#include <boost/mpl/size.hpp>
+#include <boost/multi_index/detail/index_base.hpp>
+#include <boost/multi_index/detail/is_index_list.hpp>
+#include <boost/multi_index/detail/msvc_index_specifier.hpp>
+#include <boost/static_assert.hpp>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+/* MPL machinery to construct a linear hierarchy of indices out of
+ * a index list.
+ */
+
+#if BOOST_WORKAROUND(BOOST_MSVC,<1310)
+struct index_applier
+{
+  template<typename IndexSpecifierMeta,typename SuperMeta>
+  struct apply:
+    msvc_index_specifier<IndexSpecifierMeta::type>::
+      template result_index_class<SuperMeta>
+  {
+  }; 
+};
+#else
+struct index_applier
+{
+  template<typename IndexSpecifierMeta,typename SuperMeta>
+  struct apply
+  {
+    typedef typename IndexSpecifierMeta::type            index_specifier;
+    typedef typename index_specifier::
+      BOOST_NESTED_TEMPLATE index_class<SuperMeta>::type type;
+  }; 
+};
+#endif
+
+template<int N,typename Value,typename IndexSpecifierList,typename Allocator>
+struct nth_layer
+{
+  BOOST_STATIC_CONSTANT(int,length=mpl::size<IndexSpecifierList>::value);
+
+  typedef typename  mpl::eval_if_c<
+    N==length,
+    mpl::identity<index_base<Value,IndexSpecifierList,Allocator> >,
+    mpl::apply2<
+      index_applier,
+      mpl::at_c<IndexSpecifierList,N>,
+      nth_layer<N+1,Value,IndexSpecifierList,Allocator>
+    >
+  >::type type;
+};
+
+template<typename Value,typename IndexSpecifierList,typename Allocator>
+struct multi_index_base_type:nth_layer<0,Value,IndexSpecifierList,Allocator>
+{
+  BOOST_STATIC_ASSERT(detail::is_index_list<IndexSpecifierList>::value);
+};
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif