ceph/src/boost/libs/intrusive/include/boost/intrusive/parent_from_member.hpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 //
   3 // (C) Copyright Ion Gaztanaga  2010-2013
   4 //
   5 // Distributed under the Boost Software License, Version 1.0.
   6 //    (See accompanying file LICENSE_1_0.txt or copy at
   7 //          http://www.boost.org/LICENSE_1_0.txt)
   8 //
   9 // See http://www.boost.org/libs/intrusive for documentation.
  10 //
  11 /////////////////////////////////////////////////////////////////////////////
  12 #ifndef BOOST_INTRUSIVE_PARENT_FROM_MEMBER_HPP
  13 #define BOOST_INTRUSIVE_PARENT_FROM_MEMBER_HPP
  14
  15 #include <boost/intrusive/detail/config_begin.hpp>
  16 #include <boost/intrusive/detail/workaround.hpp>
  17 #include <boost/intrusive/intrusive_fwd.hpp>
  18
  19 #include <boost/intrusive/detail/parent_from_member.hpp>
  20
  21 #if defined(BOOST_HAS_PRAGMA_ONCE)
  22 #  pragma once
  23 #endif
  24
  25 namespace boost {
  26 namespace intrusive {
  27
  28 //! Given a pointer to a member and its corresponding pointer to data member,
  29 //! this function returns the pointer of the parent containing that member.
  30 //! Note: this function does not work with pointer to members that rely on
  31 //! virtual inheritance.
  32 template<class Parent, class Member>
  33 BOOST_INTRUSIVE_FORCEINLINE Parent *get_parent_from_member(Member *member, const Member Parent::* ptr_to_member)
  34 {  return ::boost::intrusive::detail::parent_from_member(member, ptr_to_member);  }
  35
  36 //! Given a const pointer to a member and its corresponding const pointer to data member,
  37 //! this function returns the const pointer of the parent containing that member.
  38 //! Note: this function does not work with pointer to members that rely on
  39 //! virtual inheritance.
  40 template<class Parent, class Member>
  41 BOOST_INTRUSIVE_FORCEINLINE const Parent *get_parent_from_member(const Member *member, const Member Parent::* ptr_to_member)
  42 {  return ::boost::intrusive::detail::parent_from_member(member, ptr_to_member);  }
  43
  44 }  //namespace intrusive {
  45 }  //namespace boost {
  46
  47 #include <boost/intrusive/detail/config_end.hpp>
  48
  49 #endif   //#ifndef BOOST_INTRUSIVE_PARENT_FROM_MEMBER_HPP