Add SCons configure checks

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

diff --git a/boost_ext/boost/multi_index/detail/index_node_base.hpp b/boost_ext/boost/multi_index/detail/index_node_base.hpp
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+/* Copyright 2003-2007 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_INDEX_NODE_BASE_HPP
+#define BOOST_MULTI_INDEX_DETAIL_INDEX_NODE_BASE_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/type_traits/aligned_storage.hpp>
+#include <boost/type_traits/alignment_of.hpp> 
+
+#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
+#include <boost/archive/archive_exception.hpp>
+#include <boost/serialization/access.hpp>
+#include <boost/throw_exception.hpp> 
+#endif
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+/* index_node_base tops the node hierarchy of multi_index_container. It holds
+ * the value of the element contained.
+ */
+
+template<typename Value>
+struct pod_value_holder
+{
+  typename aligned_storage<
+    sizeof(Value),
+    alignment_of<Value>::value
+  >::type                      space;
+};
+
+template<typename Value,typename Allocator>
+struct index_node_base:private pod_value_holder<Value>
+{
+  typedef index_node_base base_type; /* used for serialization purposes */
+  typedef Value           value_type;
+  typedef Allocator       allocator_type;
+
+  value_type& value()
+  {
+    return *static_cast<value_type*>(
+      static_cast<void*>(&this->space));
+  }
+
+  const value_type& value()const
+  {
+    return *static_cast<const value_type*>(
+      static_cast<const void*>(&this->space));
+  }
+
+  static index_node_base* from_value(const value_type* p)
+  {
+    return static_cast<index_node_base *>(
+      reinterpret_cast<pod_value_holder<Value>*>( /* std 9.2.17 */
+        const_cast<value_type*>(p))); 
+  }
+
+private:
+#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
+  friend class boost::serialization::access;
+  
+  /* nodes do not emit any kind of serialization info. They are
+   * fed to Boost.Serialization so that pointers to nodes are
+   * tracked correctly.
+   */
+
+  template<class Archive>
+  void serialize(Archive&,const unsigned int)
+  {
+  }
+#endif
+};
+
+template<typename Node,typename Value>
+Node* node_from_value(
+  const Value* p
+  BOOST_APPEND_EXPLICIT_TEMPLATE_TYPE(Node))
+{
+  typedef typename Node::allocator_type allocator_type;
+  return static_cast<Node*>(
+    index_node_base<Value,allocator_type>::from_value(p));
+}
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
+/* Index nodes never get constructed directly by Boost.Serialization,
+ * as archives are always fed pointers to previously existent
+ * nodes. So, if this is called it means we are dealing with a
+ * somehow invalid archive.
+ */
+
+#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
+namespace serialization{
+#else
+namespace multi_index{
+namespace detail{
+#endif
+
+template<class Archive,typename Value,typename Allocator>
+inline void load_construct_data(
+  Archive&,boost::multi_index::detail::index_node_base<Value,Allocator>*,
+  const unsigned int)
+{
+  throw_exception(
+    archive::archive_exception(archive::archive_exception::other_exception));
+}
+
+#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
+} /* namespace serialization */
+#else
+} /* namespace multi_index::detail */
+} /* namespace multi_index */
+#endif
+
+#endif
+
+} /* namespace boost */
+
+#endif