Added boost header

test/external/boost/intrusive/parent_from_member.hpp

@@ -0,0 +1,42 @@
+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga  2010-2010
+//
+// 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/intrusive for documentation.
+//
+/////////////////////////////////////////////////////////////////////////////
+#ifndef BOOST_INTRUSIVE_GET_PARENT_FROM_MEMBER_HPP
+#define BOOST_INTRUSIVE_GET_PARENT_FROM_MEMBER_HPP
+
+#include <boost/intrusive/detail/config_begin.hpp>
+#include <boost/intrusive/detail/parent_from_member.hpp>
+
+namespace boost {
+namespace intrusive {
+
+//! Given a pointer to a member and its corresponding pointer to data member,
+//! this function returns the pointer of the parent containing that member.
+//! Note: this function does not work with pointer to members that rely on 
+//! virtual inheritance.
+template<class Parent, class Member>
+inline Parent *get_parent_from_member(Member *member, const Member Parent::* ptr_to_member)
+{  return ::boost::intrusive::detail::parent_from_member(member, ptr_to_member);  }
+
+//! Given a const pointer to a member and its corresponding const pointer to data member,
+//! this function returns the const pointer of the parent containing that member.
+//! Note: this function does not work with pointer to members that rely on 
+//! virtual inheritance.
+template<class Parent, class Member>
+inline const Parent *get_parent_from_member(const Member *member, const Member Parent::* ptr_to_member)
+{  return ::boost::intrusive::detail::parent_from_member(member, ptr_to_member);  }
+
+}  //namespace intrusive {
+}  //namespace boost {
+
+#include <boost/intrusive/detail/config_end.hpp>
+
+#endif   //#ifndef BOOST_INTRUSIVE_GET_PARENT_FROM_MEMBER_HPP