Added boost header

test/external/boost/multi_index/detail/seq_index_node.hpp

@@ -0,0 +1,223 @@
+/* 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_SEQ_INDEX_NODE_HPP
+#define BOOST_MULTI_INDEX_DETAIL_SEQ_INDEX_NODE_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 <algorithm>
+#include <boost/detail/allocator_utilities.hpp>
+#include <boost/multi_index/detail/prevent_eti.hpp>
+
+namespace boost{
+
+namespace multi_index{
+
+namespace detail{
+
+/* doubly-linked node for use by sequenced_index */
+
+template<typename Allocator>
+struct sequenced_index_node_impl
+{
+  typedef typename prevent_eti<
+    Allocator,
+    typename boost::detail::allocator::rebind_to<
+      Allocator,sequenced_index_node_impl
+    >::type
+  >::type::pointer                                pointer;
+  typedef typename prevent_eti<
+    Allocator,
+    typename boost::detail::allocator::rebind_to<
+      Allocator,sequenced_index_node_impl
+    >::type
+  >::type::const_pointer                          const_pointer;
+
+  pointer& prior(){return prior_;}
+  pointer  prior()const{return prior_;}
+  pointer& next(){return next_;}
+  pointer  next()const{return next_;}
+
+  /* interoperability with bidir_node_iterator */
+
+  static void increment(pointer& x){x=x->next();}
+  static void decrement(pointer& x){x=x->prior();}
+
+  /* algorithmic stuff */
+
+  static void link(pointer x,pointer header)
+  {
+    x->prior()=header->prior();
+    x->next()=header;
+    x->prior()->next()=x->next()->prior()=x;
+  };
+
+  static void unlink(pointer x)
+  {
+    x->prior()->next()=x->next();
+    x->next()->prior()=x->prior();
+  }
+
+  static void relink(pointer position,pointer x)
+  {
+    unlink(x);
+    x->prior()=position->prior();
+    x->next()=position;
+    x->prior()->next()=x->next()->prior()=x;
+  }
+
+  static void relink(pointer position,pointer x,pointer y)
+  {
+    /* position is assumed not to be in [x,y) */
+
+    if(x!=y){
+      pointer z=y->prior();
+      x->prior()->next()=y;
+      y->prior()=x->prior();
+      x->prior()=position->prior();
+      z->next()=position;
+      x->prior()->next()=x;
+      z->next()->prior()=z;
+    }
+  }
+
+  static void reverse(pointer header)
+  {
+    pointer x=header;
+    do{
+      pointer y=x->next();
+      std::swap(x->prior(),x->next());
+      x=y;
+    }while(x!=header);
+  }
+
+  static void swap(pointer x,pointer y)
+  {
+    /* This swap function does not exchange the header nodes,
+     * but rather their pointers. This is *not* used for implementing
+     * sequenced_index::swap.
+     */
+
+    if(x->next()!=x){
+      if(y->next()!=y){
+        std::swap(x->next(),y->next());
+        std::swap(x->prior(),y->prior());
+        x->next()->prior()=x->prior()->next()=x;
+        y->next()->prior()=y->prior()->next()=y;
+      }
+      else{
+        y->next()=x->next();
+        y->prior()=x->prior();
+        x->next()=x->prior()=x;
+        y->next()->prior()=y->prior()->next()=y;
+      }
+    }
+    else if(y->next()!=y){
+      x->next()=y->next();
+      x->prior()=y->prior();
+      y->next()=y->prior()=y;
+      x->next()->prior()=x->prior()->next()=x;
+    }
+  }
+
+private:
+  pointer prior_;
+  pointer next_;
+};
+
+template<typename Super>
+struct sequenced_index_node_trampoline:
+  prevent_eti<
+    Super,
+    sequenced_index_node_impl<
+      typename boost::detail::allocator::rebind_to<
+        typename Super::allocator_type,
+        char
+      >::type
+    >
+  >::type
+{
+  typedef typename prevent_eti<
+    Super,
+    sequenced_index_node_impl<
+      typename boost::detail::allocator::rebind_to<
+        typename Super::allocator_type,
+        char
+      >::type
+    >
+  >::type impl_type;
+};
+
+template<typename Super>
+struct sequenced_index_node:Super,sequenced_index_node_trampoline<Super>
+{
+private:
+  typedef sequenced_index_node_trampoline<Super> trampoline;
+
+public:
+  typedef typename trampoline::impl_type         impl_type;
+  typedef typename trampoline::pointer           impl_pointer;
+  typedef typename trampoline::const_pointer     const_impl_pointer;
+
+  impl_pointer& prior(){return trampoline::prior();}
+  impl_pointer  prior()const{return trampoline::prior();}
+  impl_pointer& next(){return trampoline::next();}
+  impl_pointer  next()const{return trampoline::next();}
+
+  impl_pointer impl()
+  {
+    return static_cast<impl_pointer>(
+      static_cast<impl_type*>(static_cast<trampoline*>(this)));
+  }
+
+  const_impl_pointer impl()const
+  {
+    return static_cast<const_impl_pointer>(
+      static_cast<const impl_type*>(static_cast<const trampoline*>(this)));
+  }
+
+  static sequenced_index_node* from_impl(impl_pointer x)
+  {
+    return static_cast<sequenced_index_node*>(
+      static_cast<trampoline*>(&*x));
+  }
+
+  static const sequenced_index_node* from_impl(const_impl_pointer x)
+  {
+    return static_cast<const sequenced_index_node*>(
+      static_cast<const trampoline*>(&*x));
+  }
+
+  /* interoperability with bidir_node_iterator */
+
+  static void increment(sequenced_index_node*& x)
+  {
+    impl_pointer xi=x->impl();
+    trampoline::increment(xi);
+    x=from_impl(xi);
+  }
+
+  static void decrement(sequenced_index_node*& x)
+  {
+    impl_pointer xi=x->impl();
+    trampoline::decrement(xi);
+    x=from_impl(xi);
+  }
+};
+
+} /* namespace multi_index::detail */
+
+} /* namespace multi_index */
+
+} /* namespace boost */
+
+#endif