| ///////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2006-2013 |
| // |
| // 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_ANY_HOOK_HPP |
| #define BOOST_INTRUSIVE_ANY_HOOK_HPP |
| |
| #include <boost/intrusive/detail/config_begin.hpp> |
| #include <boost/intrusive/intrusive_fwd.hpp> |
| #include <boost/intrusive/detail/any_node_and_algorithms.hpp> |
| #include <boost/intrusive/options.hpp> |
| #include <boost/intrusive/detail/generic_hook.hpp> |
| #include <boost/intrusive/detail/mpl.hpp> |
| #include <boost/intrusive/pointer_rebind.hpp> |
| |
| #if defined(BOOST_HAS_PRAGMA_ONCE) |
| # pragma once |
| #endif |
| |
| namespace boost { |
| namespace intrusive { |
| |
| //! Helper metafunction to define a \c \c any_base_hook that yields to the same |
| //! type when the same options (either explicitly or implicitly) are used. |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| template<class ...Options> |
| #else |
| template<class O1 = void, class O2 = void, class O3 = void> |
| #endif |
| struct make_any_base_hook |
| { |
| /// @cond |
| typedef typename pack_options |
| < hook_defaults, |
| #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| O1, O2, O3 |
| #else |
| Options... |
| #endif |
| >::type packed_options; |
| |
| typedef generic_hook |
| < any_algorithms<typename packed_options::void_pointer> |
| , typename packed_options::tag |
| , packed_options::link_mode |
| , AnyBaseHookId |
| > implementation_defined; |
| /// @endcond |
| typedef implementation_defined type; |
| }; |
| |
| //! Derive a class from this hook in order to store objects of that class |
| //! in an intrusive container. |
| //! |
| //! The hook admits the following options: \c tag<>, \c void_pointer<> and |
| //! \c link_mode<>. |
| //! |
| //! \c tag<> defines a tag to identify the node. |
| //! The same tag value can be used in different classes, but if a class is |
| //! derived from more than one \c any_base_hook, then each \c any_base_hook needs its |
| //! unique tag. |
| //! |
| //! \c link_mode<> will specify the linking mode of the hook (\c normal_link, \c safe_link). |
| //! |
| //! \c void_pointer<> is the pointer type that will be used internally in the hook |
| //! and the container configured to use this hook. |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| template<class ...Options> |
| #else |
| template<class O1, class O2, class O3> |
| #endif |
| class any_base_hook |
| : public make_any_base_hook |
| #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| <O1, O2, O3> |
| #else |
| <Options...> |
| #endif |
| ::type |
| { |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) |
| public: |
| //! <b>Effects</b>: If link_mode is or \c safe_link |
| //! initializes the node to an unlinked state. |
| //! |
| //! <b>Throws</b>: Nothing. |
| any_base_hook(); |
| |
| //! <b>Effects</b>: If link_mode is or \c safe_link |
| //! initializes the node to an unlinked state. The argument is ignored. |
| //! |
| //! <b>Throws</b>: Nothing. |
| //! |
| //! <b>Rationale</b>: Providing a copy-constructor |
| //! makes classes using the hook STL-compliant without forcing the |
| //! user to do some additional work. \c swap can be used to emulate |
| //! move-semantics. |
| any_base_hook(const any_base_hook& ); |
| |
| //! <b>Effects</b>: Empty function. The argument is ignored. |
| //! |
| //! <b>Throws</b>: Nothing. |
| //! |
| //! <b>Rationale</b>: Providing an assignment operator |
| //! makes classes using the hook STL-compliant without forcing the |
| //! user to do some additional work. \c swap can be used to emulate |
| //! move-semantics. |
| any_base_hook& operator=(const any_base_hook& ); |
| |
| //! <b>Effects</b>: If link_mode is \c normal_link, the destructor does |
| //! nothing (ie. no code is generated). If link_mode is \c safe_link and the |
| //! object is stored in a container an assertion is raised. |
| //! |
| //! <b>Throws</b>: Nothing. |
| ~any_base_hook(); |
| |
| //! <b>Precondition</b>: link_mode must be \c safe_link. |
| //! |
| //! <b>Returns</b>: true, if the node belongs to a container, false |
| //! otherwise. This function can be used to test whether \c container::iterator_to |
| //! will return a valid iterator. |
| //! |
| //! <b>Complexity</b>: Constant |
| bool is_linked() const; |
| #endif |
| }; |
| |
| //! Helper metafunction to define a \c \c any_member_hook that yields to the same |
| //! type when the same options (either explicitly or implicitly) are used. |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| template<class ...Options> |
| #else |
| template<class O1 = void, class O2 = void, class O3 = void> |
| #endif |
| struct make_any_member_hook |
| { |
| /// @cond |
| typedef typename pack_options |
| < hook_defaults, |
| #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| O1, O2, O3 |
| #else |
| Options... |
| #endif |
| >::type packed_options; |
| |
| typedef generic_hook |
| < any_algorithms<typename packed_options::void_pointer> |
| , member_tag |
| , packed_options::link_mode |
| , NoBaseHookId |
| > implementation_defined; |
| /// @endcond |
| typedef implementation_defined type; |
| }; |
| |
| //! Store this hook in a class to be inserted |
| //! in an intrusive container. |
| //! |
| //! The hook admits the following options: \c void_pointer<> and |
| //! \c link_mode<>. |
| //! |
| //! \c link_mode<> will specify the linking mode of the hook (\c normal_link or \c safe_link). |
| //! |
| //! \c void_pointer<> is the pointer type that will be used internally in the hook |
| //! and the container configured to use this hook. |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| template<class ...Options> |
| #else |
| template<class O1, class O2, class O3> |
| #endif |
| class any_member_hook |
| : public make_any_member_hook |
| #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) |
| <O1, O2, O3> |
| #else |
| <Options...> |
| #endif |
| ::type |
| { |
| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) |
| public: |
| //! <b>Effects</b>: If link_mode is or \c safe_link |
| //! initializes the node to an unlinked state. |
| //! |
| //! <b>Throws</b>: Nothing. |
| any_member_hook(); |
| |
| //! <b>Effects</b>: If link_mode is or \c safe_link |
| //! initializes the node to an unlinked state. The argument is ignored. |
| //! |
| //! <b>Throws</b>: Nothing. |
| //! |
| //! <b>Rationale</b>: Providing a copy-constructor |
| //! makes classes using the hook STL-compliant without forcing the |
| //! user to do some additional work. \c swap can be used to emulate |
| //! move-semantics. |
| any_member_hook(const any_member_hook& ); |
| |
| //! <b>Effects</b>: Empty function. The argument is ignored. |
| //! |
| //! <b>Throws</b>: Nothing. |
| //! |
| //! <b>Rationale</b>: Providing an assignment operator |
| //! makes classes using the hook STL-compliant without forcing the |
| //! user to do some additional work. \c swap can be used to emulate |
| //! move-semantics. |
| any_member_hook& operator=(const any_member_hook& ); |
| |
| //! <b>Effects</b>: If link_mode is \c normal_link, the destructor does |
| //! nothing (ie. no code is generated). If link_mode is \c safe_link and the |
| //! object is stored in a container an assertion is raised. |
| //! |
| //! <b>Throws</b>: Nothing. |
| ~any_member_hook(); |
| |
| //! <b>Precondition</b>: link_mode must be \c safe_link. |
| //! |
| //! <b>Returns</b>: true, if the node belongs to a container, false |
| //! otherwise. This function can be used to test whether \c container::iterator_to |
| //! will return a valid iterator. |
| //! |
| //! <b>Complexity</b>: Constant |
| bool is_linked() const; |
| #endif |
| }; |
| |
| /// @cond |
| |
| namespace detail{ |
| |
| BOOST_INTRUSIVE_INTERNAL_STATIC_BOOL_IS_TRUE(old_proto_value_traits_base_hook, hooktags::is_base_hook) |
| |
| //!This option setter specifies that the container |
| //!must use the specified base hook |
| template<class BasicHook, template <class> class NodeTraits> |
| struct any_to_some_hook |
| { |
| typedef typename BasicHook::template pack<empty>::proto_value_traits old_proto_value_traits; |
| |
| template<class Base> |
| struct pack : public Base |
| { |
| struct proto_value_traits |
| { |
| //proto_value_traits::hooktags::is_base_hook is used by get_value_traits |
| //to detect base hooks, so mark it in case BasicHook has it. |
| struct hooktags |
| { |
| static const bool is_base_hook = old_proto_value_traits_base_hook_bool_is_true |
| <old_proto_value_traits>::value; |
| }; |
| |
| typedef old_proto_value_traits basic_hook_t; |
| static const bool is_any_hook = true; |
| |
| template<class VoidPtr> |
| struct node_traits_from_voidptr |
| { typedef NodeTraits<VoidPtr> type; }; |
| }; |
| }; |
| }; |
| |
| } //namespace detail{ |
| |
| /// @endcond |
| |
| //!This option setter specifies that |
| //!any hook should behave as an slist hook |
| template<class BasicHook> |
| struct any_to_slist_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_slist_node_traits> |
| /// @endcond |
| {}; |
| |
| //!This option setter specifies that |
| //!any hook should behave as an list hook |
| template<class BasicHook> |
| struct any_to_list_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_list_node_traits> |
| /// @endcond |
| {}; |
| |
| //!This option setter specifies that |
| //!any hook should behave as a set hook |
| template<class BasicHook> |
| struct any_to_set_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_rbtree_node_traits> |
| /// @endcond |
| {}; |
| |
| //!This option setter specifies that |
| //!any hook should behave as an avl_set hook |
| template<class BasicHook> |
| struct any_to_avl_set_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_avltree_node_traits> |
| /// @endcond |
| {}; |
| |
| //!This option setter specifies that any |
| //!hook should behave as a bs_set hook |
| template<class BasicHook> |
| struct any_to_bs_set_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_tree_node_traits> |
| /// @endcond |
| {}; |
| |
| //!This option setter specifies that any hook |
| //!should behave as an unordered set hook |
| template<class BasicHook> |
| struct any_to_unordered_set_hook |
| /// @cond |
| : public detail::any_to_some_hook<BasicHook, any_unordered_node_traits> |
| /// @endcond |
| {}; |
| |
| |
| } //namespace intrusive |
| } //namespace boost |
| |
| #include <boost/intrusive/detail/config_end.hpp> |
| |
| #endif //BOOST_INTRUSIVE_ANY_HOOK_HPP |