Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga  2006-2013
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/intrusive for documentation.
Chris@16: //
Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@101: #ifndef BOOST_INTRUSIVE_LINK_MODE_HPP
Chris@101: #define BOOST_INTRUSIVE_LINK_MODE_HPP
Chris@101: 
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@101: #  pragma once
Chris@101: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace intrusive {
Chris@16: 
Chris@16: //!This enumeration defines the type of value_traits that can be defined
Chris@16: //!for Boost.Intrusive containers
Chris@16: enum link_mode_type{
Chris@16:    //!If this linking policy is specified in a value_traits class
Chris@16:    //!as the link_mode, containers
Chris@16:    //!configured with such value_traits won't set the hooks
Chris@16:    //!of the erased values to a default state. Containers also won't
Chris@16:    //!check that the hooks of the new values are default initialized.
Chris@16:    normal_link,
Chris@16: 
Chris@16:    //!If this linking policy is specified in a value_traits class
Chris@16:    //!as the link_mode, containers
Chris@16:    //!configured with such value_traits will set the hooks
Chris@16:    //!of the erased values to a default state. Containers also will
Chris@16:    //!check that the hooks of the new values are default initialized.
Chris@16:    safe_link,
Chris@16: 
Chris@16:    //!Same as "safe_link" but the user type is an auto-unlink
Chris@16:    //!type, so the containers with constant-time size features won't be
Chris@16:    //!compatible with value_traits configured with this policy.
Chris@16:    //!Containers also know that the a value can be silently erased from
Chris@16:    //!the container without using any function provided by the containers.
Chris@16:    auto_unlink
Chris@16: };
Chris@101: 
Chris@101: #ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
Chris@101: 
Chris@101: template <link_mode_type link_mode>
Chris@101: struct is_safe_autounlink
Chris@101: {
Chris@101:    static const bool value =
Chris@101:       (int)link_mode == (int)auto_unlink   ||
Chris@101:       (int)link_mode == (int)safe_link;
Chris@101: };
Chris@101: 
Chris@101: #endif   //BOOST_INTRUSIVE_DOXYGEN_INVOKED
Chris@101: 
Chris@16: } //namespace intrusive
Chris@16: } //namespace boost
Chris@16: 
Chris@101: #endif //BOOST_INTRUSIVE_LINK_MODE_HPP