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			294 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			294 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /////////////////////////////////////////////////////////////////////////////
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| //
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| // (C) Copyright Ion Gaztanaga 2007-2013
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| //
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| // Distributed under the Boost Software License, Version 1.0.
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| //    (See accompanying file LICENSE_1_0.txt or copy at
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| //          http://www.boost.org/LICENSE_1_0.txt)
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| //
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| // See http://www.boost.org/libs/intrusive for documentation.
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| //
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| /////////////////////////////////////////////////////////////////////////////
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| 
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| #ifndef BOOST_INTRUSIVE_AVL_SET_HOOK_HPP
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| #define BOOST_INTRUSIVE_AVL_SET_HOOK_HPP
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| 
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| #include <boost/intrusive/detail/config_begin.hpp>
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| #include <boost/intrusive/intrusive_fwd.hpp>
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| 
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| #include <boost/intrusive/detail/avltree_node.hpp>
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| #include <boost/intrusive/avltree_algorithms.hpp>
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| #include <boost/intrusive/options.hpp>
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| #include <boost/intrusive/detail/generic_hook.hpp>
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| 
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| #if defined(BOOST_HAS_PRAGMA_ONCE)
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| #  pragma once
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| #endif
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| 
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| namespace boost {
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| namespace intrusive {
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| 
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| //! Helper metafunction to define a \c avl_set_base_hook that yields to the same
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| //! type when the same options (either explicitly or implicitly) are used.
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| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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| template<class ...Options>
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| #else
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| template<class O1 = void, class O2 = void, class O3 = void, class O4 = void>
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| #endif
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| struct make_avl_set_base_hook
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| {
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|    /// @cond
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|    typedef typename pack_options
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|       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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|       <hook_defaults, O1, O2, O3, O4>
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|       #else
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|       <hook_defaults, Options...>
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|       #endif
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|       ::type packed_options;
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| 
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|    typedef generic_hook
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|    < AvlTreeAlgorithms
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|    , avltree_node_traits<typename packed_options::void_pointer, packed_options::optimize_size>
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|    , typename packed_options::tag
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|    , packed_options::link_mode
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|    , AvlTreeBaseHookId
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|    > implementation_defined;
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|    /// @endcond
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|    typedef implementation_defined type;
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| };
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| 
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| //! Derive a class from avl_set_base_hook in order to store objects in
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| //! in an avl_set/avl_multiset. avl_set_base_hook holds the data necessary to maintain
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| //! the avl_set/avl_multiset and provides an appropriate value_traits class for avl_set/avl_multiset.
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| //!
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| //! The hook admits the following options: \c tag<>, \c void_pointer<>,
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| //! \c link_mode<> and \c optimize_size<>.
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| //!
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| //! \c tag<> defines a tag to identify the node.
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| //! The same tag value can be used in different classes, but if a class is
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| //! derived from more than one \c list_base_hook, then each \c list_base_hook needs its
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| //! unique tag.
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| //!
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| //! \c void_pointer<> is the pointer type that will be used internally in the hook
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| //! and the container configured to use this hook.
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| //!
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| //! \c link_mode<> will specify the linking mode of the hook (\c normal_link,
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| //! \c auto_unlink or \c safe_link).
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| //!
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| //! \c optimize_size<> will tell the hook to optimize the hook for size instead
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| //! of speed.
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| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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| template<class ...Options>
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| #else
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| template<class O1, class O2, class O3, class O4>
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| #endif
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| class avl_set_base_hook
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|    :  public make_avl_set_base_hook
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|       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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|       <O1, O2, O3, O4>
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|       #else
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|       <Options...>
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|       #endif
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|       ::type
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| {
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|    #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
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|    public:
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|    //! <b>Effects</b>: If link_mode is \c auto_unlink or \c safe_link
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|    //!   initializes the node to an unlinked state.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    avl_set_base_hook();
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| 
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|    //! <b>Effects</b>: If link_mode is \c auto_unlink or \c safe_link
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|    //!   initializes the node to an unlinked state. The argument is ignored.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    //!
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|    //! <b>Rationale</b>: Providing a copy-constructor
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|    //!   makes classes using the hook STL-compliant without forcing the
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|    //!   user to do some additional work. \c swap can be used to emulate
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|    //!   move-semantics.
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|    avl_set_base_hook(const avl_set_base_hook& );
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| 
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|    //! <b>Effects</b>: Empty function. The argument is ignored.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    //!
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|    //! <b>Rationale</b>: Providing an assignment operator
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|    //!   makes classes using the hook STL-compliant without forcing the
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|    //!   user to do some additional work. \c swap can be used to emulate
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|    //!   move-semantics.
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|    avl_set_base_hook& operator=(const avl_set_base_hook& );
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| 
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|    //! <b>Effects</b>: If link_mode is \c normal_link, the destructor does
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|    //!   nothing (ie. no code is generated). If link_mode is \c safe_link and the
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|    //!   object is stored in a set an assertion is raised. If link_mode is
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|    //!   \c auto_unlink and \c is_linked() is true, the node is unlinked.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    ~avl_set_base_hook();
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| 
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|    //! <b>Effects</b>: Swapping two nodes swaps the position of the elements
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|    //!   related to those nodes in one or two containers. That is, if the node
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|    //!   this is part of the element e1, the node x is part of the element e2
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|    //!   and both elements are included in the containers s1 and s2, then after
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|    //!   the swap-operation e1 is in s2 at the position of e2 and e2 is in s1
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|    //!   at the position of e1. If one element is not in a container, then
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|    //!   after the swap-operation the other element is not in a container.
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|    //!   Iterators to e1 and e2 related to those nodes are invalidated.
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|    //!
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|    //! <b>Complexity</b>: Constant
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    void swap_nodes(avl_set_base_hook &other);
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| 
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|    //! <b>Precondition</b>: link_mode must be \c safe_link or \c auto_unlink.
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|    //!
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|    //! <b>Returns</b>: true, if the node belongs to a container, false
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|    //!   otherwise. This function can be used to test whether \c set::iterator_to
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|    //!   will return a valid iterator.
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|    //!
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|    //! <b>Complexity</b>: Constant
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|    bool is_linked() const;
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| 
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|    //! <b>Effects</b>: Removes the node if it's inserted in a container.
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|    //!   This function is only allowed if link_mode is \c auto_unlink.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    void unlink();
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|    #endif
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| };
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| 
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| //! Helper metafunction to define a \c avl_set_member_hook that yields to the same
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| //! type when the same options (either explicitly or implicitly) are used.
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| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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| template<class ...Options>
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| #else
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| template<class O1 = void, class O2 = void, class O3 = void, class O4 = void>
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| #endif
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| struct make_avl_set_member_hook
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| {
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|    /// @cond
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|    typedef typename pack_options
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|       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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|       <hook_defaults, O1, O2, O3, O4>
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|       #else
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|       <hook_defaults, Options...>
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|       #endif
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|       ::type packed_options;
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| 
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|    typedef generic_hook
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|    < AvlTreeAlgorithms
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|    , avltree_node_traits<typename packed_options::void_pointer, packed_options::optimize_size>
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|    , member_tag
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|    , packed_options::link_mode
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|    , NoBaseHookId
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|    > implementation_defined;
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|    /// @endcond
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|    typedef implementation_defined type;
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| };
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| 
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| //! Put a public data member avl_set_member_hook in order to store objects of this class in
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| //! an avl_set/avl_multiset. avl_set_member_hook holds the data necessary for maintaining the
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| //! avl_set/avl_multiset and provides an appropriate value_traits class for avl_set/avl_multiset.
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| //!
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| //! The hook admits the following options: \c void_pointer<>,
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| //! \c link_mode<> and \c optimize_size<>.
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| //!
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| //! \c void_pointer<> is the pointer type that will be used internally in the hook
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| //! and the container configured to use this hook.
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| //!
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| //! \c link_mode<> will specify the linking mode of the hook (\c normal_link,
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| //! \c auto_unlink or \c safe_link).
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| //!
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| //! \c optimize_size<> will tell the hook to optimize the hook for size instead
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| //! of speed.
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| #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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| template<class ...Options>
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| #else
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| template<class O1, class O2, class O3, class O4>
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| #endif
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| class avl_set_member_hook
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|    :  public make_avl_set_member_hook
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|       #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
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|       <O1, O2, O3, O4>
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|       #else
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|       <Options...>
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|       #endif
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|       ::type
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| {
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|    #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
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|    public:
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|    //! <b>Effects</b>: If link_mode is \c auto_unlink or \c safe_link
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|    //!   initializes the node to an unlinked state.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    avl_set_member_hook();
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| 
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|    //! <b>Effects</b>: If link_mode is \c auto_unlink or \c safe_link
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|    //!   initializes the node to an unlinked state. The argument is ignored.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    //!
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|    //! <b>Rationale</b>: Providing a copy-constructor
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|    //!   makes classes using the hook STL-compliant without forcing the
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|    //!   user to do some additional work. \c swap can be used to emulate
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|    //!   move-semantics.
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|    avl_set_member_hook(const avl_set_member_hook& );
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| 
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|    //! <b>Effects</b>: Empty function. The argument is ignored.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    //!
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|    //! <b>Rationale</b>: Providing an assignment operator
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|    //!   makes classes using the hook STL-compliant without forcing the
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|    //!   user to do some additional work. \c swap can be used to emulate
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|    //!   move-semantics.
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|    avl_set_member_hook& operator=(const avl_set_member_hook& );
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| 
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|    //! <b>Effects</b>: If link_mode is \c normal_link, the destructor does
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|    //!   nothing (ie. no code is generated). If link_mode is \c safe_link and the
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|    //!   object is stored in a set an assertion is raised. If link_mode is
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|    //!   \c auto_unlink and \c is_linked() is true, the node is unlinked.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    ~avl_set_member_hook();
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| 
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|    //! <b>Effects</b>: Swapping two nodes swaps the position of the elements
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|    //!   related to those nodes in one or two containers. That is, if the node
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|    //!   this is part of the element e1, the node x is part of the element e2
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|    //!   and both elements are included in the containers s1 and s2, then after
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|    //!   the swap-operation e1 is in s2 at the position of e2 and e2 is in s1
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|    //!   at the position of e1. If one element is not in a container, then
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|    //!   after the swap-operation the other element is not in a container.
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|    //!   Iterators to e1 and e2 related to those nodes are invalidated.
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|    //!
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|    //! <b>Complexity</b>: Constant
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    void swap_nodes(avl_set_member_hook &other);
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| 
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|    //! <b>Precondition</b>: link_mode must be \c safe_link or \c auto_unlink.
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|    //!
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|    //! <b>Returns</b>: true, if the node belongs to a container, false
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|    //!   otherwise. This function can be used to test whether \c set::iterator_to
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|    //!   will return a valid iterator.
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|    //!
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|    //! <b>Complexity</b>: Constant
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|    bool is_linked() const;
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| 
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|    //! <b>Effects</b>: Removes the node if it's inserted in a container.
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|    //!   This function is only allowed if link_mode is \c auto_unlink.
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|    //!
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|    //! <b>Throws</b>: Nothing.
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|    void unlink();
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|    #endif
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| };
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| 
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| } //namespace intrusive
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| } //namespace boost
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| 
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| #include <boost/intrusive/detail/config_end.hpp>
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| 
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| #endif //BOOST_INTRUSIVE_AVL_SET_HOOK_HPP
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