Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/intrusive/slist.hpp @ 16:2665513ce2d3
Add boost headers
| author | Chris Cannam |
|---|---|
| date | Tue, 05 Aug 2014 11:11:38 +0100 |
| parents | |
| children | c530137014c0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/intrusive/slist.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,2223 @@ +///////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Olaf Krzikalla 2004-2006. +// (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_SLIST_HPP +#define BOOST_INTRUSIVE_SLIST_HPP + +#include <boost/intrusive/detail/config_begin.hpp> +#include <boost/static_assert.hpp> +#include <boost/intrusive/detail/assert.hpp> +#include <boost/intrusive/intrusive_fwd.hpp> +#include <boost/intrusive/slist_hook.hpp> +#include <boost/intrusive/circular_slist_algorithms.hpp> +#include <boost/intrusive/linear_slist_algorithms.hpp> +#include <boost/intrusive/pointer_traits.hpp> +#include <boost/intrusive/detail/clear_on_destructor_base.hpp> +#include <boost/intrusive/link_mode.hpp> +#include <boost/intrusive/options.hpp> +#include <boost/intrusive/detail/utilities.hpp> +#include <iterator> +#include <functional> +#include <algorithm> +#include <cstddef> //std::size_t +#include <utility> //std::pair +#include <boost/move/move.hpp> + +namespace boost { +namespace intrusive { + +/// @cond + +template<class Node, class NodePtr, bool> +struct root_plus_last +{ + Node root_; + NodePtr last_; +}; + +template<class Node, class NodePtr> +struct root_plus_last<Node, NodePtr, false> +{ + Node root_; +}; + +struct slist_defaults +{ + typedef detail::default_slist_hook proto_value_traits; + static const bool constant_time_size = true; + static const bool linear = false; + typedef std::size_t size_type; + static const bool cache_last = false; +}; + +struct slist_bool_flags +{ + static const std::size_t linear_pos = 1u; + static const std::size_t constant_time_size_pos = 2u; + static const std::size_t cache_last_pos = 4u; +}; + + +/// @endcond + +//! The class template slist is an intrusive container, that encapsulates +//! a singly-linked list. You can use such a list to squeeze the last bit +//! of performance from your application. Unfortunately, the little gains +//! come with some huge drawbacks. A lot of member functions can't be +//! implemented as efficiently as for standard containers. To overcome +//! this limitation some other member functions with rather unusual semantics +//! have to be introduced. +//! +//! The template parameter \c T is the type to be managed by the container. +//! The user can specify additional options and if no options are provided +//! default options are used. +//! +//! The container supports the following options: +//! \c base_hook<>/member_hook<>/value_traits<>, +//! \c constant_time_size<>, \c size_type<>, +//! \c linear<> and \c cache_last<>. +//! +//! The iterators of slist are forward iterators. slist provides a static +//! function called "previous" to compute the previous iterator of a given iterator. +//! This function has linear complexity. To improve the usability esp. with +//! the '*_after' functions, ++end() == begin() and previous(begin()) == end() +//! are defined. An new special function "before_begin()" is defined, which returns +//! an iterator that points one less the beginning of the list: ++before_begin() == begin() +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +class slist_impl + : private detail::clear_on_destructor_base + < slist_impl<ValueTraits, SizeType, BoolFlags> + , is_safe_autounlink<detail::get_real_value_traits<ValueTraits>::type::link_mode>::value + > +{ + template<class C, bool> friend class detail::clear_on_destructor_base; + //Public typedefs + public: + typedef ValueTraits value_traits; + /// @cond + static const bool external_value_traits = + detail::external_value_traits_bool_is_true<value_traits>::value; + typedef typename detail::get_real_value_traits<ValueTraits>::type real_value_traits; + /// @endcond + typedef typename real_value_traits::pointer pointer; + typedef typename real_value_traits::const_pointer const_pointer; + typedef typename pointer_traits<pointer>::element_type value_type; + typedef typename pointer_traits<pointer>::reference reference; + typedef typename pointer_traits<const_pointer>::reference const_reference; + typedef typename pointer_traits<pointer>::difference_type difference_type; + typedef SizeType size_type; + typedef slist_iterator<real_value_traits, false> iterator; + typedef slist_iterator<real_value_traits, true> const_iterator; + typedef typename real_value_traits::node_traits node_traits; + typedef typename node_traits::node node; + typedef typename node_traits::node_ptr node_ptr; + typedef typename node_traits::const_node_ptr const_node_ptr; + + static const bool constant_time_size = 0 != (BoolFlags & slist_bool_flags::constant_time_size_pos); + static const bool stateful_value_traits = detail::is_stateful_value_traits<real_value_traits>::value; + static const bool linear = 0 != (BoolFlags & slist_bool_flags::linear_pos); + static const bool cache_last = 0 != (BoolFlags & slist_bool_flags::cache_last_pos); + + typedef typename detail::if_c + < linear + , linear_slist_algorithms<node_traits> + , circular_slist_algorithms<node_traits> + >::type node_algorithms; + + /// @cond + private: + typedef detail::size_holder<constant_time_size, size_type> size_traits; + + //noncopyable + BOOST_MOVABLE_BUT_NOT_COPYABLE(slist_impl) + + static const bool safemode_or_autounlink = is_safe_autounlink<real_value_traits::link_mode>::value; + + //Constant-time size is incompatible with auto-unlink hooks! + BOOST_STATIC_ASSERT(!(constant_time_size && ((int)real_value_traits::link_mode == (int)auto_unlink))); + //Linear singly linked lists are incompatible with auto-unlink hooks! + BOOST_STATIC_ASSERT(!(linear && ((int)real_value_traits::link_mode == (int)auto_unlink))); + //A list with cached last node is incompatible with auto-unlink hooks! + BOOST_STATIC_ASSERT(!(cache_last && ((int)real_value_traits::link_mode == (int)auto_unlink))); + + node_ptr get_end_node() + { return node_ptr(linear ? node_ptr() : this->get_root_node()); } + + const_node_ptr get_end_node() const + { + return const_node_ptr + (linear ? const_node_ptr() : this->get_root_node()); } + + node_ptr get_root_node() + { return pointer_traits<node_ptr>::pointer_to(data_.root_plus_size_.root_); } + + const_node_ptr get_root_node() const + { return pointer_traits<const_node_ptr>::pointer_to(data_.root_plus_size_.root_); } + + node_ptr get_last_node() + { return this->get_last_node(detail::bool_<cache_last>()); } + + const_node_ptr get_last_node() const + { return this->get_last_node(detail::bool_<cache_last>()); } + + void set_last_node(const node_ptr &n) + { return this->set_last_node(n, detail::bool_<cache_last>()); } + + static node_ptr get_last_node(detail::bool_<false>) + { + //This function shall not be used if cache_last is not true + BOOST_INTRUSIVE_INVARIANT_ASSERT(cache_last); + return node_ptr(); + } + + static void set_last_node(const node_ptr &, detail::bool_<false>) + { + //This function shall not be used if cache_last is not true + BOOST_INTRUSIVE_INVARIANT_ASSERT(cache_last); + } + + node_ptr get_last_node(detail::bool_<true>) + { return node_ptr(data_.root_plus_size_.last_); } + + const_node_ptr get_last_node(detail::bool_<true>) const + { return const_node_ptr(data_.root_plus_size_.last_); } + + void set_last_node(const node_ptr & n, detail::bool_<true>) + { data_.root_plus_size_.last_ = n; } + + void set_default_constructed_state() + { + node_algorithms::init_header(this->get_root_node()); + this->priv_size_traits().set_size(size_type(0)); + if(cache_last){ + this->set_last_node(this->get_root_node()); + } + } + + struct root_plus_size + : public size_traits + , public root_plus_last<node, node_ptr, cache_last> + {}; + + struct data_t + : public slist_impl::value_traits + { + typedef typename slist_impl::value_traits value_traits; + explicit data_t(const value_traits &val_traits) + : value_traits(val_traits) + {} + + root_plus_size root_plus_size_; + } data_; + + size_traits &priv_size_traits() + { return data_.root_plus_size_; } + + const size_traits &priv_size_traits() const + { return data_.root_plus_size_; } + + const real_value_traits &get_real_value_traits(detail::bool_<false>) const + { return data_; } + + const real_value_traits &get_real_value_traits(detail::bool_<true>) const + { return data_.get_value_traits(*this); } + + real_value_traits &get_real_value_traits(detail::bool_<false>) + { return data_; } + + real_value_traits &get_real_value_traits(detail::bool_<true>) + { return data_.get_value_traits(*this); } + + const value_traits &priv_value_traits() const + { return data_; } + + value_traits &priv_value_traits() + { return data_; } + + protected: + node &prot_root_node() + { return data_.root_plus_size_.root_; } + + node const &prot_root_node() const + { return data_.root_plus_size_.root_; } + + void prot_set_size(size_type s) + { data_.root_plus_size_.set_size(s); } + + /// @endcond + + public: + + const real_value_traits &get_real_value_traits() const + { return this->get_real_value_traits(detail::bool_<external_value_traits>()); } + + real_value_traits &get_real_value_traits() + { return this->get_real_value_traits(detail::bool_<external_value_traits>()); } + + typedef typename pointer_traits<node_ptr>::template rebind_pointer<const real_value_traits>::type const_real_value_traits_ptr; + + const_real_value_traits_ptr real_value_traits_ptr() const + { return pointer_traits<const_real_value_traits_ptr>::pointer_to(this->get_real_value_traits()); } + + public: + + ///@cond + + //! <b>Requires</b>: f and before_l belong to another slist. + //! + //! <b>Effects</b>: Transfers the range [f, before_l] to this + //! list, after the element pointed by prev_pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements transferred + //! if constant_time_size is true. Constant-time otherwise. + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + //! + //! <b>Warning</b>: Experimental function, don't use it! + slist_impl( const node_ptr & f, const node_ptr & before_l + , size_type n, const value_traits &v_traits = value_traits()) + : data_(v_traits) + { + if(n){ + this->priv_size_traits().set_size(n); + if(cache_last){ + this->set_last_node(before_l); + } + node_traits::set_next(this->get_root_node(), f); + node_traits::set_next(before_l, this->get_end_node()); + } + else{ + this->set_default_constructed_state(); + } + } + + ///@endcond + + //! <b>Effects</b>: constructs an empty list. + //! + //! <b>Complexity</b>: Constant + //! + //! <b>Throws</b>: If value_traits::node_traits::node + //! constructor throws (this does not happen with predefined Boost.Intrusive hooks). + explicit slist_impl(const value_traits &v_traits = value_traits()) + : data_(v_traits) + { this->set_default_constructed_state(); } + + //! <b>Requires</b>: Dereferencing iterator must yield an lvalue of type value_type. + //! + //! <b>Effects</b>: Constructs a list equal to [b ,e). + //! + //! <b>Complexity</b>: Linear in std::distance(b, e). No copy constructors are called. + //! + //! <b>Throws</b>: If value_traits::node_traits::node + //! constructor throws (this does not happen with predefined Boost.Intrusive hooks). + template<class Iterator> + slist_impl(Iterator b, Iterator e, const value_traits &v_traits = value_traits()) + : data_(v_traits) + { + this->set_default_constructed_state(); + this->insert_after(this->cbefore_begin(), b, e); + } + + //! <b>Effects</b>: to-do + //! + slist_impl(BOOST_RV_REF(slist_impl) x) + : data_(::boost::move(x.priv_value_traits())) + { + this->priv_size_traits().set_size(size_type(0)); + node_algorithms::init_header(this->get_root_node()); + this->swap(x); + } + + //! <b>Effects</b>: to-do + //! + slist_impl& operator=(BOOST_RV_REF(slist_impl) x) + { this->swap(x); return *this; } + + #ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED + //! <b>Effects</b>: If it's a safe-mode + //! or auto-unlink value, the destructor does nothing + //! (ie. no code is generated). Otherwise it detaches all elements from this. + //! In this case the objects in the list are not deleted (i.e. no destructors + //! are called), but the hooks according to the value_traits template parameter + //! are set to their default value. + //! + //! <b>Complexity</b>: Linear to the number of elements in the list, if + //! it's a safe-mode or auto-unlink value. Otherwise constant. + ~slist_impl() + {} + #endif + + //! <b>Effects</b>: Erases all the elements of the container. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements of the list. + //! if it's a safe-mode or auto-unlink value_type. Constant time otherwise. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the erased elements. + void clear() + { + if(safemode_or_autounlink){ + this->clear_and_dispose(detail::null_disposer()); + } + else{ + this->set_default_constructed_state(); + } + } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases all the elements of the container + //! Disposer::operator()(pointer) is called for the removed elements. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements of the list. + //! + //! <b>Note</b>: Invalidates the iterators to the erased elements. + template <class Disposer> + void clear_and_dispose(Disposer disposer) + { + const_iterator it(this->begin()), itend(this->end()); + while(it != itend){ + node_ptr to_erase(it.pointed_node()); + ++it; + if(safemode_or_autounlink) + node_algorithms::init(to_erase); + disposer(get_real_value_traits().to_value_ptr(to_erase)); + } + this->set_default_constructed_state(); + } + + //! <b>Requires</b>: value must be an lvalue. + //! + //! <b>Effects</b>: Inserts the value in the front of the list. + //! No copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + void push_front(reference value) + { + node_ptr to_insert = get_real_value_traits().to_node_ptr(value); + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::inited(to_insert)); + if(cache_last){ + if(this->empty()){ + this->set_last_node(to_insert); + } + } + node_algorithms::link_after(this->get_root_node(), to_insert); + this->priv_size_traits().increment(); + } + + //! <b>Requires</b>: value must be an lvalue. + //! + //! <b>Effects</b>: Inserts the value in the back of the list. + //! No copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + //! This function is only available is cache_last<> is true. + void push_back(reference value) + { + BOOST_STATIC_ASSERT((cache_last)); + node_ptr n = get_real_value_traits().to_node_ptr(value); + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::inited(n)); + node_algorithms::link_after(this->get_last_node(), n); + if(cache_last){ + this->set_last_node(n); + } + this->priv_size_traits().increment(); + } + + //! <b>Effects</b>: Erases the first element of the list. + //! No destructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the erased element. + void pop_front() + { return this->pop_front_and_dispose(detail::null_disposer()); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases the first element of the list. + //! Disposer::operator()(pointer) is called for the removed element. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Invalidates the iterators to the erased element. + template<class Disposer> + void pop_front_and_dispose(Disposer disposer) + { + node_ptr to_erase = node_traits::get_next(this->get_root_node()); + node_algorithms::unlink_after(this->get_root_node()); + this->priv_size_traits().decrement(); + if(safemode_or_autounlink) + node_algorithms::init(to_erase); + disposer(get_real_value_traits().to_value_ptr(to_erase)); + if(cache_last){ + if(this->empty()){ + this->set_last_node(this->get_root_node()); + } + } + } + + //! <b>Effects</b>: Returns a reference to the first element of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + reference front() + { return *this->get_real_value_traits().to_value_ptr(node_traits::get_next(this->get_root_node())); } + + //! <b>Effects</b>: Returns a const_reference to the first element of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_reference front() const + { return *this->get_real_value_traits().to_value_ptr(detail::uncast(node_traits::get_next(this->get_root_node()))); } + + //! <b>Effects</b>: Returns a reference to the last element of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + //! This function is only available is cache_last<> is true. + reference back() + { + BOOST_STATIC_ASSERT((cache_last)); + return *this->get_real_value_traits().to_value_ptr(this->get_last_node()); + } + + //! <b>Effects</b>: Returns a const_reference to the last element of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + //! This function is only available is cache_last<> is true. + const_reference back() const + { + BOOST_STATIC_ASSERT((cache_last)); + return *this->get_real_value_traits().to_value_ptr(this->get_last_node()); + } + + //! <b>Effects</b>: Returns an iterator to the first element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + iterator begin() + { return iterator (node_traits::get_next(this->get_root_node()), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns a const_iterator to the first element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator begin() const + { return const_iterator (node_traits::get_next(this->get_root_node()), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns a const_iterator to the first element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator cbegin() const + { return const_iterator(node_traits::get_next(this->get_root_node()), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns an iterator to the end of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + iterator end() + { return iterator(this->get_end_node(), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns a const_iterator to the end of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator end() const + { return const_iterator(detail::uncast(this->get_end_node()), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns a const_iterator to the end of the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator cend() const + { return this->end(); } + + //! <b>Effects</b>: Returns an iterator that points to a position + //! before the first element. Equivalent to "end()" + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + iterator before_begin() + { return iterator(this->get_root_node(), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns an iterator that points to a position + //! before the first element. Equivalent to "end()" + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator before_begin() const + { return const_iterator(detail::uncast(this->get_root_node()), this->real_value_traits_ptr()); } + + //! <b>Effects</b>: Returns an iterator that points to a position + //! before the first element. Equivalent to "end()" + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + const_iterator cbefore_begin() const + { return this->before_begin(); } + + //! <b>Effects</b>: Returns an iterator to the last element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: This function is present only if cached_last<> option is true. + iterator last() + { + //This function shall not be used if cache_last is not true + BOOST_INTRUSIVE_INVARIANT_ASSERT(cache_last); + return iterator (this->get_last_node(), this->real_value_traits_ptr()); + } + + //! <b>Effects</b>: Returns a const_iterator to the last element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: This function is present only if cached_last<> option is true. + const_iterator last() const + { + //This function shall not be used if cache_last is not true + BOOST_INTRUSIVE_INVARIANT_ASSERT(cache_last); + return const_iterator (this->get_last_node(), this->real_value_traits_ptr()); + } + + //! <b>Effects</b>: Returns a const_iterator to the last element contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: This function is present only if cached_last<> option is true. + const_iterator clast() const + { return const_iterator(this->get_last_node(), this->real_value_traits_ptr()); } + + //! <b>Precondition</b>: end_iterator must be a valid end iterator + //! of slist. + //! + //! <b>Effects</b>: Returns a const reference to the slist associated to the end iterator + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + static slist_impl &container_from_end_iterator(iterator end_iterator) + { return slist_impl::priv_container_from_end_iterator(end_iterator); } + + //! <b>Precondition</b>: end_iterator must be a valid end const_iterator + //! of slist. + //! + //! <b>Effects</b>: Returns a const reference to the slist associated to the end iterator + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + static const slist_impl &container_from_end_iterator(const_iterator end_iterator) + { return slist_impl::priv_container_from_end_iterator(end_iterator); } + + //! <b>Effects</b>: Returns the number of the elements contained in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements contained in the list. + //! if constant_time_size is false. Constant time otherwise. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + size_type size() const + { + if(constant_time_size) + return this->priv_size_traits().get_size(); + else + return node_algorithms::count(this->get_root_node()) - 1; + } + + //! <b>Effects</b>: Returns true if the list contains no elements. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + bool empty() const + { return node_algorithms::unique(this->get_root_node()); } + + //! <b>Effects</b>: Swaps the elements of x and *this. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements of both lists. + //! Constant-time if linear<> and/or cache_last<> options are used. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + void swap(slist_impl& other) + { + if(cache_last){ + priv_swap_cache_last(this, &other); + } + else{ + this->priv_swap_lists(this->get_root_node(), other.get_root_node(), detail::bool_<linear>()); + } + if(constant_time_size){ + size_type backup = this->priv_size_traits().get_size(); + this->priv_size_traits().set_size(other.priv_size_traits().get_size()); + other.priv_size_traits().set_size(backup); + } + } + + //! <b>Effects</b>: Moves backwards all the elements, so that the first + //! element becomes the second, the second becomes the third... + //! the last element becomes the first one. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements plus the number shifts. + //! + //! <b>Note</b>: Iterators Does not affect the validity of iterators and references. + void shift_backwards(size_type n = 1) + { this->priv_shift_backwards(n, detail::bool_<linear>()); } + + //! <b>Effects</b>: Moves forward all the elements, so that the second + //! element becomes the first, the third becomes the second... + //! the first element becomes the last one. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements plus the number shifts. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + void shift_forward(size_type n = 1) + { this->priv_shift_forward(n, detail::bool_<linear>()); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! Cloner should yield to nodes equivalent to the original nodes. + //! + //! <b>Effects</b>: Erases all the elements from *this + //! calling Disposer::operator()(pointer), clones all the + //! elements from src calling Cloner::operator()(const_reference ) + //! and inserts them on *this. + //! + //! If cloner throws, all cloned elements are unlinked and disposed + //! calling Disposer::operator()(pointer). + //! + //! <b>Complexity</b>: Linear to erased plus inserted elements. + //! + //! <b>Throws</b>: If cloner throws. + template <class Cloner, class Disposer> + void clone_from(const slist_impl &src, Cloner cloner, Disposer disposer) + { + this->clear_and_dispose(disposer); + detail::exception_disposer<slist_impl, Disposer> + rollback(*this, disposer); + const_iterator prev(this->cbefore_begin()); + const_iterator b(src.begin()), e(src.end()); + for(; b != e; ++b){ + prev = this->insert_after(prev, *cloner(*b)); + } + rollback.release(); + } + + //! <b>Requires</b>: value must be an lvalue and prev_p must point to an element + //! contained by the list or to end(). + //! + //! <b>Effects</b>: Inserts the value after the position pointed by prev_p. + //! No copy constructor is called. + //! + //! <b>Returns</b>: An iterator to the inserted element. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + iterator insert_after(const_iterator prev_p, reference value) + { + node_ptr n = get_real_value_traits().to_node_ptr(value); + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::inited(n)); + node_ptr prev_n(prev_p.pointed_node()); + node_algorithms::link_after(prev_n, n); + if(cache_last && (this->get_last_node() == prev_n)){ + this->set_last_node(n); + } + this->priv_size_traits().increment(); + return iterator (n, this->real_value_traits_ptr()); + } + + //! <b>Requires</b>: Dereferencing iterator must yield + //! an lvalue of type value_type and prev_p must point to an element + //! contained by the list or to the end node. + //! + //! <b>Effects</b>: Inserts the [f, l) + //! after the position prev_p. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements inserted. + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + template<class Iterator> + void insert_after(const_iterator prev_p, Iterator f, Iterator l) + { + //Insert first nodes avoiding cache and size checks + size_type count = 0; + node_ptr prev_n(prev_p.pointed_node()); + for (; f != l; ++f, ++count){ + const node_ptr n = get_real_value_traits().to_node_ptr(*f); + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::inited(n)); + node_algorithms::link_after(prev_n, n); + prev_n = n; + } + //Now fix special cases if needed + if(cache_last && (this->get_last_node() == prev_p.pointed_node())){ + this->set_last_node(prev_n); + } + if(constant_time_size){ + this->priv_size_traits().increase(count); + } + } + + //! <b>Requires</b>: value must be an lvalue and p must point to an element + //! contained by the list or to end(). + //! + //! <b>Effects</b>: Inserts the value before the position pointed by p. + //! No copy constructor is called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements before p. + //! Constant-time if cache_last<> is true and p == end(). + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + iterator insert(const_iterator p, reference value) + { return this->insert_after(this->previous(p), value); } + + //! <b>Requires</b>: Dereferencing iterator must yield + //! an lvalue of type value_type and p must point to an element + //! contained by the list or to the end node. + //! + //! <b>Effects</b>: Inserts the pointed by b and e + //! before the position p. No copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements inserted plus linear + //! to the elements before b. + //! Linear to the number of elements to insert if cache_last<> option is true and p == end(). + //! + //! <b>Note</b>: Does not affect the validity of iterators and references. + template<class Iterator> + void insert(const_iterator p, Iterator b, Iterator e) + { return this->insert_after(this->previous(p), b, e); } + + //! <b>Effects</b>: Erases the element after the element pointed by prev of + //! the list. No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + iterator erase_after(const_iterator prev) + { return this->erase_after_and_dispose(prev, detail::null_disposer()); } + + //! <b>Effects</b>: Erases the range (before_f, l) from + //! the list. No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of erased elements if it's a safe-mode + //! , auto-unlink value or constant-time size is activated. Constant time otherwise. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + iterator erase_after(const_iterator before_f, const_iterator l) + { + if(safemode_or_autounlink || constant_time_size){ + return this->erase_after_and_dispose(before_f, l, detail::null_disposer()); + } + else{ + const node_ptr bfp = before_f.pointed_node(); + const node_ptr lp = l.pointed_node(); + if(cache_last){ + if(lp == this->get_end_node()){ + this->set_last_node(bfp); + } + } + node_algorithms::unlink_after(bfp, lp); + return l.unconst(); + } + } + + //! <b>Effects</b>: Erases the range (before_f, l) from + //! the list. n must be std::distance(before_f, l) - 1. + //! No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: constant-time if link_mode is normal_link. + //! Linear to the elements (l - before_f) otherwise. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + iterator erase_after(const_iterator before_f, const_iterator l, size_type n) + { + BOOST_INTRUSIVE_INVARIANT_ASSERT(std::distance(++const_iterator(before_f), l) == difference_type(n)); + if(safemode_or_autounlink){ + return this->erase_after(before_f, l); + } + else{ + const node_ptr bfp = before_f.pointed_node(); + const node_ptr lp = l.pointed_node(); + if(cache_last){ + if((lp == this->get_end_node())){ + this->set_last_node(bfp); + } + } + node_algorithms::unlink_after(bfp, lp); + if(constant_time_size){ + this->priv_size_traits().decrease(n); + } + return l.unconst(); + } + } + + //! <b>Effects</b>: Erases the element pointed by i of the list. + //! No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed element, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements before i. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + iterator erase(const_iterator i) + { return this->erase_after(this->previous(i)); } + + //! <b>Requires</b>: f and l must be valid iterator to elements in *this. + //! + //! <b>Effects</b>: Erases the range pointed by b and e. + //! No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements before l. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased elements. + iterator erase(const_iterator f, const_iterator l) + { return this->erase_after(this->previous(f), l); } + + //! <b>Effects</b>: Erases the range [f, l) from + //! the list. n must be std::distance(f, l). + //! No destructors are called. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: linear to the elements before f if link_mode is normal_link + //! and constant_time_size is activated. Linear to the elements before l otherwise. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + iterator erase(const_iterator f, const_iterator l, size_type n) + { return this->erase_after(this->previous(f), l, n); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases the element after the element pointed by prev of + //! the list. + //! Disposer::operator()(pointer) is called for the removed element. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Invalidates the iterators to the erased element. + template<class Disposer> + iterator erase_after_and_dispose(const_iterator prev, Disposer disposer) + { + const_iterator it(prev); + ++it; + node_ptr to_erase(it.pointed_node()); + ++it; + node_ptr prev_n(prev.pointed_node()); + node_algorithms::unlink_after(prev_n); + if(cache_last && (to_erase == this->get_last_node())){ + this->set_last_node(prev_n); + } + if(safemode_or_autounlink) + node_algorithms::init(to_erase); + disposer(get_real_value_traits().to_value_ptr(to_erase)); + this->priv_size_traits().decrement(); + return it.unconst(); + } + + /// @cond + + template<class Disposer> + static iterator s_erase_after_and_dispose(const_iterator prev, Disposer disposer) + { + BOOST_STATIC_ASSERT(((!cache_last)&&(!constant_time_size)&&(!stateful_value_traits))); + const_iterator it(prev); + ++it; + node_ptr to_erase(it.pointed_node()); + ++it; + node_ptr prev_n(prev.pointed_node()); + node_algorithms::unlink_after(prev_n); + if(safemode_or_autounlink) + node_algorithms::init(to_erase); + disposer(real_value_traits::to_value_ptr(to_erase)); + return it.unconst(); + } + + static iterator s_erase_after(const_iterator prev) + { return s_erase_after_and_dispose(prev, detail::null_disposer()); } + + /// @endcond + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases the range (before_f, l) from + //! the list. + //! Disposer::operator()(pointer) is called for the removed elements. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Lineal to the elements (l - before_f + 1). + //! + //! <b>Note</b>: Invalidates the iterators to the erased element. + template<class Disposer> + iterator erase_after_and_dispose(const_iterator before_f, const_iterator l, Disposer disposer) + { + node_ptr bfp(before_f.pointed_node()), lp(l.pointed_node()); + node_ptr fp(node_traits::get_next(bfp)); + node_algorithms::unlink_after(bfp, lp); + while(fp != lp){ + node_ptr to_erase(fp); + fp = node_traits::get_next(fp); + if(safemode_or_autounlink) + node_algorithms::init(to_erase); + disposer(get_real_value_traits().to_value_ptr(to_erase)); + this->priv_size_traits().decrement(); + } + if(cache_last && (node_traits::get_next(bfp) == this->get_end_node())){ + this->set_last_node(bfp); + } + return l.unconst(); + } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases the element pointed by i of the list. + //! No destructors are called. + //! Disposer::operator()(pointer) is called for the removed element. + //! + //! <b>Returns</b>: the first element remaining beyond the removed element, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements before i. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased element. + template<class Disposer> + iterator erase_and_dispose(const_iterator i, Disposer disposer) + { return this->erase_after_and_dispose(this->previous(i), disposer); } + + #if !defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) + template<class Disposer> + iterator erase_and_dispose(iterator i, Disposer disposer) + { return this->erase_and_dispose(const_iterator(i), disposer); } + #endif + + //! <b>Requires</b>: f and l must be valid iterator to elements in *this. + //! Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Erases the range pointed by b and e. + //! No destructors are called. + //! Disposer::operator()(pointer) is called for the removed elements. + //! + //! <b>Returns</b>: the first element remaining beyond the removed elements, + //! or end() if no such element exists. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of erased elements plus linear + //! to the elements before f. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) to the + //! erased elements. + template<class Disposer> + iterator erase_and_dispose(const_iterator f, const_iterator l, Disposer disposer) + { return this->erase_after_and_dispose(this->previous(f), l, disposer); } + + //! <b>Requires</b>: Dereferencing iterator must yield + //! an lvalue of type value_type. + //! + //! <b>Effects</b>: Clears the list and inserts the range pointed by b and e. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements inserted plus + //! linear to the elements contained in the list if it's a safe-mode + //! or auto-unlink value. + //! Linear to the number of elements inserted in the list otherwise. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) + //! to the erased elements. + template<class Iterator> + void assign(Iterator b, Iterator e) + { + this->clear(); + this->insert_after(this->cbefore_begin(), b, e); + } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Requires</b>: Dereferencing iterator must yield + //! an lvalue of type value_type. + //! + //! <b>Effects</b>: Clears the list and inserts the range pointed by b and e. + //! No destructors or copy constructors are called. + //! Disposer::operator()(pointer) is called for the removed elements. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements inserted plus + //! linear to the elements contained in the list. + //! + //! <b>Note</b>: Invalidates the iterators (but not the references) + //! to the erased elements. + template<class Iterator, class Disposer> + void dispose_and_assign(Disposer disposer, Iterator b, Iterator e) + { + this->clear_and_dispose(disposer); + this->insert_after(this->cbefore_begin(), b, e, disposer); + } + + //! <b>Requires</b>: prev must point to an element contained by this list or + //! to the before_begin() element + //! + //! <b>Effects</b>: Transfers all the elements of list x to this list, after the + //! the element pointed by prev. No destructors or copy constructors are called. + //! + //! <b>Returns</b>: Nothing. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: In general, linear to the elements contained in x. + //! Constant-time if cache_last<> option is true and also constant-time if + //! linear<> option is true "this" is empty and "l" is not used. + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + //! + //! <b>Additional note</b>: If the optional parameter "l" is provided, it will be + //! assigned to the last spliced element or prev if x is empty. + //! This iterator can be used as new "prev" iterator for a new splice_after call. + //! that will splice new values after the previously spliced values. + void splice_after(const_iterator prev, slist_impl &x, const_iterator *l = 0) + { + if(x.empty()){ + if(l) *l = prev; + } + else if(linear && this->empty()){ + this->swap(x); + if(l) *l = this->previous(this->cend()); + } + else{ + const_iterator last_x(x.previous(x.end())); //<- constant time if cache_last is active + node_ptr prev_n(prev.pointed_node()); + node_ptr last_x_n(last_x.pointed_node()); + if(cache_last){ + x.set_last_node(x.get_root_node()); + if(node_traits::get_next(prev_n) == this->get_end_node()){ + this->set_last_node(last_x_n); + } + } + node_algorithms::transfer_after( prev_n, x.before_begin().pointed_node(), last_x_n); + this->priv_size_traits().increase(x.priv_size_traits().get_size()); + x.priv_size_traits().set_size(size_type(0)); + if(l) *l = last_x; + } + } + + //! <b>Requires</b>: prev must point to an element contained by this list or + //! to the before_begin() element. prev_ele must point to an element contained in list + //! x or must be x.before_begin(). + //! + //! <b>Effects</b>: Transfers the element after prev_ele, from list x to this list, + //! after the element pointed by prev. No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant. + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice_after(const_iterator prev_pos, slist_impl &x, const_iterator prev_ele) + { + const_iterator elem = prev_ele; + this->splice_after(prev_pos, x, prev_ele, ++elem, 1); + } + + //! <b>Requires</b>: prev_pos must be a dereferenceable iterator in *this or be + //! before_begin(), and before_f and before_l belong to x and + //! ++before_f != x.end() && before_l != x.end(). + //! + //! <b>Effects</b>: Transfers the range (before_f, before_l] from list x to this + //! list, after the element pointed by prev_pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements transferred + //! if constant_time_size is true. Constant-time otherwise. + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice_after(const_iterator prev_pos, slist_impl &x, const_iterator before_f, const_iterator before_l) + { + if(constant_time_size) + this->splice_after(prev_pos, x, before_f, before_l, std::distance(before_f, before_l)); + else + this->priv_splice_after + (prev_pos.pointed_node(), x, before_f.pointed_node(), before_l.pointed_node()); + } + + //! <b>Requires</b>: prev_pos must be a dereferenceable iterator in *this or be + //! before_begin(), and before_f and before_l belong to x and + //! ++before_f != x.end() && before_l != x.end() and + //! n == std::distance(before_f, before_l). + //! + //! <b>Effects</b>: Transfers the range (before_f, before_l] from list x to this + //! list, after the element pointed by p. No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice_after(const_iterator prev_pos, slist_impl &x, const_iterator before_f, const_iterator before_l, size_type n) + { + BOOST_INTRUSIVE_INVARIANT_ASSERT(std::distance(before_f, before_l) == difference_type(n)); + this->priv_splice_after + (prev_pos.pointed_node(), x, before_f.pointed_node(), before_l.pointed_node()); + if(constant_time_size){ + this->priv_size_traits().increase(n); + x.priv_size_traits().decrease(n); + } + } + + //! <b>Requires</b>: it is an iterator to an element in *this. + //! + //! <b>Effects</b>: Transfers all the elements of list x to this list, before the + //! the element pointed by it. No destructors or copy constructors are called. + //! + //! <b>Returns</b>: Nothing. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements contained in x plus linear to + //! the elements before it. + //! Linear to the elements before it if cache_last<> option is true. + //! Constant-time if cache_last<> option is true and it == end(). + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + //! + //! <b>Additional note</b>: If the optional parameter "l" is provided, it will be + //! assigned to the last spliced element or prev if x is empty. + //! This iterator can be used as new "prev" iterator for a new splice_after call. + //! that will splice new values after the previously spliced values. + void splice(const_iterator it, slist_impl &x, const_iterator *l = 0) + { this->splice_after(this->previous(it), x, l); } + + //! <b>Requires</b>: it p must be a valid iterator of *this. + //! elem must point to an element contained in list + //! x. + //! + //! <b>Effects</b>: Transfers the element elem, from list x to this list, + //! before the element pointed by pos. No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the elements before pos and before elem. + //! Linear to the elements before elem if cache_last<> option is true and pos == end(). + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice(const_iterator pos, slist_impl &x, const_iterator elem) + { return this->splice_after(this->previous(pos), x, x.previous(elem)); } + + //! <b>Requires</b>: pos must be a dereferenceable iterator in *this + //! and f and f belong to x and f and f a valid range on x. + //! + //! <b>Effects</b>: Transfers the range [f, l) from list x to this + //! list, before the element pointed by pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the sum of elements before pos, f, and l + //! plus linear to the number of elements transferred if constant_time_size is true. + //! Linear to the sum of elements before f, and l + //! plus linear to the number of elements transferred if constant_time_size is true + //! if cache_last<> is true and pos == end() + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice(const_iterator pos, slist_impl &x, const_iterator f, const_iterator l) + { return this->splice_after(this->previous(pos), x, x.previous(f), x.previous(l)); } + + //! <b>Requires</b>: pos must be a dereferenceable iterator in *this + //! and f and l belong to x and f and l a valid range on x. + //! n == std::distance(f, l). + //! + //! <b>Effects</b>: Transfers the range [f, l) from list x to this + //! list, before the element pointed by pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the sum of elements before pos, f, and l. + //! Linear to the sum of elements before f and l + //! if cache_last<> is true and pos == end(). + //! + //! <b>Note</b>: Iterators of values obtained from list x now point to elements of this + //! list. Iterators of this list and all the references are not invalidated. + void splice(const_iterator pos, slist_impl &x, const_iterator f, const_iterator l, size_type n) + { return this->splice_after(this->previous(pos), x, x.previous(f), x.previous(l), n); } + + //! <b>Effects</b>: This function sorts the list *this according to std::less<value_type>. + //! The sort is stable, that is, the relative order of equivalent elements is preserved. + //! + //! <b>Throws</b>: If value_traits::node_traits::node + //! constructor throws (this does not happen with predefined Boost.Intrusive hooks) + //! or the predicate throws. Basic guarantee. + //! + //! <b>Complexity</b>: The number of comparisons is approximately N log N, where N + //! is the list's size. + //! + //! <b>Note</b>: Iterators and references are not invalidated + template<class Predicate> + void sort(Predicate p) + { + if (node_traits::get_next(node_traits::get_next(this->get_root_node())) + != this->get_root_node()) { + + slist_impl carry(this->priv_value_traits()); + detail::array_initializer<slist_impl, 64> counter(this->priv_value_traits()); + int fill = 0; + const_iterator last_inserted; + while(!this->empty()){ + last_inserted = this->cbegin(); + carry.splice_after(carry.cbefore_begin(), *this, this->cbefore_begin()); + int i = 0; + while(i < fill && !counter[i].empty()) { + carry.swap(counter[i]); + carry.merge(counter[i++], p, &last_inserted); + } + BOOST_INTRUSIVE_INVARIANT_ASSERT(counter[i].empty()); + const_iterator last_element(carry.previous(last_inserted, carry.end())); + + if(constant_time_size){ + counter[i].splice_after( counter[i].cbefore_begin(), carry + , carry.cbefore_begin(), last_element + , carry.size()); + } + else{ + counter[i].splice_after( counter[i].cbefore_begin(), carry + , carry.cbefore_begin(), last_element); + } + if(i == fill) + ++fill; + } + + for (int i = 1; i < fill; ++i) + counter[i].merge(counter[i-1], p, &last_inserted); + --fill; + const_iterator last_element(counter[fill].previous(last_inserted, counter[fill].end())); + if(constant_time_size){ + this->splice_after( cbefore_begin(), counter[fill], counter[fill].cbefore_begin() + , last_element, counter[fill].size()); + } + else{ + this->splice_after( cbefore_begin(), counter[fill], counter[fill].cbefore_begin() + , last_element); + } + } + } + + //! <b>Requires</b>: p must be a comparison function that induces a strict weak + //! ordering and both *this and x must be sorted according to that ordering + //! The lists x and *this must be distinct. + //! + //! <b>Effects</b>: This function removes all of x's elements and inserts them + //! in order into *this. The merge is stable; that is, if an element from *this is + //! equivalent to one from x, then the element from *this will precede the one from x. + //! + //! <b>Throws</b>: If value_traits::node_traits::node + //! constructor throws (this does not happen with predefined Boost.Intrusive hooks) + //! or std::less<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: This function is linear time: it performs at most + //! size() + x.size() - 1 comparisons. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + void sort() + { this->sort(std::less<value_type>()); } + + //! <b>Requires</b>: p must be a comparison function that induces a strict weak + //! ordering and both *this and x must be sorted according to that ordering + //! The lists x and *this must be distinct. + //! + //! <b>Effects</b>: This function removes all of x's elements and inserts them + //! in order into *this. The merge is stable; that is, if an element from *this is + //! equivalent to one from x, then the element from *this will precede the one from x. + //! + //! <b>Returns</b>: Nothing. + //! + //! <b>Throws</b>: If the predicate throws. Basic guarantee. + //! + //! <b>Complexity</b>: This function is linear time: it performs at most + //! size() + x.size() - 1 comparisons. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + //! + //! <b>Additional note</b>: If optional "l" argument is passed, it is assigned + //! to an iterator to the last transferred value or end() is x is empty. + template<class Predicate> + void merge(slist_impl& x, Predicate p, const_iterator *l = 0) + { + const_iterator e(this->cend()), ex(x.cend()), bb(this->cbefore_begin()), + bb_next; + if(l) *l = e.unconst(); + while(!x.empty()){ + const_iterator ibx_next(x.cbefore_begin()), ibx(ibx_next++); + while (++(bb_next = bb) != e && !p(*ibx_next, *bb_next)){ + bb = bb_next; + } + if(bb_next == e){ + //Now transfer the rest to the end of the container + this->splice_after(bb, x, l); + break; + } + else{ + size_type n(0); + do{ + ibx = ibx_next; ++n; + } while(++(ibx_next = ibx) != ex && p(*ibx_next, *bb_next)); + this->splice_after(bb, x, x.before_begin(), ibx, n); + if(l) *l = ibx; + } + } + } + + //! <b>Effects</b>: This function removes all of x's elements and inserts them + //! in order into *this according to std::less<value_type>. The merge is stable; + //! that is, if an element from *this is equivalent to one from x, then the element + //! from *this will precede the one from x. + //! + //! <b>Throws</b>: if std::less<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: This function is linear time: it performs at most + //! size() + x.size() - 1 comparisons. + //! + //! <b>Note</b>: Iterators and references are not invalidated + void merge(slist_impl& x) + { this->merge(x, std::less<value_type>()); } + + //! <b>Effects</b>: Reverses the order of elements in the list. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: This function is linear to the contained elements. + //! + //! <b>Note</b>: Iterators and references are not invalidated + void reverse() + { + if(cache_last && !this->empty()){ + this->set_last_node(node_traits::get_next(this->get_root_node())); + } + this->priv_reverse(detail::bool_<linear>()); + } + + //! <b>Effects</b>: Removes all the elements that compare equal to value. + //! No destructors are called. + //! + //! <b>Throws</b>: If std::equal_to<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time. It performs exactly size() comparisons for equality. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. This function is + //! linear time: it performs exactly size() comparisons for equality. + void remove(const_reference value) + { this->remove_if(detail::equal_to_value<const_reference>(value)); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Removes all the elements that compare equal to value. + //! Disposer::operator()(pointer) is called for every removed element. + //! + //! <b>Throws</b>: If std::equal_to<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time. It performs exactly size() comparisons for equality. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class Disposer> + void remove_and_dispose(const_reference value, Disposer disposer) + { this->remove_and_dispose_if(detail::equal_to_value<const_reference>(value), disposer); } + + //! <b>Effects</b>: Removes all the elements for which a specified + //! predicate is satisfied. No destructors are called. + //! + //! <b>Throws</b>: If pred throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time. It performs exactly size() calls to the predicate. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class Pred> + void remove_if(Pred pred) + { this->remove_and_dispose_if(pred, detail::null_disposer()); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Removes all the elements for which a specified + //! predicate is satisfied. + //! Disposer::operator()(pointer) is called for every removed element. + //! + //! <b>Throws</b>: If pred throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time. It performs exactly size() comparisons for equality. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class Pred, class Disposer> + void remove_and_dispose_if(Pred pred, Disposer disposer) + { + const_iterator bcur(this->before_begin()), cur(this->begin()), e(this->end()); + + while(cur != e){ + if (pred(*cur)){ + cur = this->erase_after_and_dispose(bcur, disposer); + } + else{ + bcur = cur; + ++cur; + } + } + if(cache_last){ + this->set_last_node(bcur.pointed_node()); + } + } + + //! <b>Effects</b>: Removes adjacent duplicate elements or adjacent + //! elements that are equal from the list. No destructors are called. + //! + //! <b>Throws</b>: If std::equal_to<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time (size()-1) comparisons calls to pred()). + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + void unique() + { this->unique_and_dispose(std::equal_to<value_type>(), detail::null_disposer()); } + + //! <b>Effects</b>: Removes adjacent duplicate elements or adjacent + //! elements that satisfy some binary predicate from the list. + //! No destructors are called. + //! + //! <b>Throws</b>: If the predicate throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time (size()-1) comparisons equality comparisons. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class BinaryPredicate> + void unique(BinaryPredicate pred) + { this->unique_and_dispose(pred, detail::null_disposer()); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Removes adjacent duplicate elements or adjacent + //! elements that satisfy some binary predicate from the list. + //! Disposer::operator()(pointer) is called for every removed element. + //! + //! <b>Throws</b>: If std::equal_to<value_type> throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time (size()-1) comparisons equality comparisons. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class Disposer> + void unique_and_dispose(Disposer disposer) + { this->unique(std::equal_to<value_type>(), disposer); } + + //! <b>Requires</b>: Disposer::operator()(pointer) shouldn't throw. + //! + //! <b>Effects</b>: Removes adjacent duplicate elements or adjacent + //! elements that satisfy some binary predicate from the list. + //! Disposer::operator()(pointer) is called for every removed element. + //! + //! <b>Throws</b>: If the predicate throws. Basic guarantee. + //! + //! <b>Complexity</b>: Linear time (size()-1) comparisons equality comparisons. + //! + //! <b>Note</b>: The relative order of elements that are not removed is unchanged, + //! and iterators to elements that are not removed remain valid. + template<class BinaryPredicate, class Disposer> + void unique_and_dispose(BinaryPredicate pred, Disposer disposer) + { + const_iterator end_n(this->cend()); + const_iterator bcur(this->cbegin()); + if(bcur != end_n){ + const_iterator cur(bcur); + ++cur; + while(cur != end_n) { + if (pred(*bcur, *cur)){ + cur = this->erase_after_and_dispose(bcur, disposer); + } + else{ + bcur = cur; + ++cur; + } + } + if(cache_last){ + this->set_last_node(bcur.pointed_node()); + } + } + } + + //! <b>Requires</b>: value must be a reference to a value inserted in a list. + //! + //! <b>Effects</b>: This function returns a const_iterator pointing to the element + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + //! This static function is available only if the <i>value traits</i> + //! is stateless. + static iterator s_iterator_to(reference value) + { + BOOST_STATIC_ASSERT((!stateful_value_traits)); + //BOOST_INTRUSIVE_INVARIANT_ASSERT (!node_algorithms::inited(value_traits::to_node_ptr(value))); + return iterator (value_traits::to_node_ptr(value), const_real_value_traits_ptr()); + } + + //! <b>Requires</b>: value must be a const reference to a value inserted in a list. + //! + //! <b>Effects</b>: This function returns an iterator pointing to the element. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + //! This static function is available only if the <i>value traits</i> + //! is stateless. + static const_iterator s_iterator_to(const_reference value) + { + BOOST_STATIC_ASSERT((!stateful_value_traits)); + //BOOST_INTRUSIVE_INVARIANT_ASSERT (!node_algorithms::inited(value_traits::to_node_ptr(const_cast<reference> (value)))); + return const_iterator (value_traits::to_node_ptr(const_cast<reference> (value)), const_real_value_traits_ptr()); + } + + //! <b>Requires</b>: value must be a reference to a value inserted in a list. + //! + //! <b>Effects</b>: This function returns a const_iterator pointing to the element + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + iterator iterator_to(reference value) + { + //BOOST_INTRUSIVE_INVARIANT_ASSERT (!node_algorithms::inited(value_traits::to_node_ptr(value))); + return iterator (value_traits::to_node_ptr(value), this->real_value_traits_ptr()); + } + + //! <b>Requires</b>: value must be a const reference to a value inserted in a list. + //! + //! <b>Effects</b>: This function returns an iterator pointing to the element. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators and references are not invalidated. + const_iterator iterator_to(const_reference value) const + { + //BOOST_INTRUSIVE_INVARIANT_ASSERT (!node_algorithms::inited(value_traits::to_node_ptr(const_cast<reference> (value)))); + return const_iterator (value_traits::to_node_ptr(const_cast<reference> (value)), this->real_value_traits_ptr()); + } + + //! <b>Returns</b>: The iterator to the element before i in the list. + //! Returns the end-iterator, if either i is the begin-iterator or the + //! list is empty. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements before i. + //! Constant if cache_last<> is true and i == end(). + iterator previous(iterator i) + { return this->previous(this->cbefore_begin(), i); } + + //! <b>Returns</b>: The const_iterator to the element before i in the list. + //! Returns the end-const_iterator, if either i is the begin-const_iterator or + //! the list is empty. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements before i. + //! Constant if cache_last<> is true and i == end(). + const_iterator previous(const_iterator i) const + { return this->previous(this->cbefore_begin(), i); } + + //! <b>Returns</b>: The iterator to the element before i in the list, + //! starting the search on element after prev_from. + //! Returns the end-iterator, if either i is the begin-iterator or the + //! list is empty. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements before i. + //! Constant if cache_last<> is true and i == end(). + iterator previous(const_iterator prev_from, iterator i) + { return this->previous(prev_from, const_iterator(i)).unconst(); } + + //! <b>Returns</b>: The const_iterator to the element before i in the list, + //! starting the search on element after prev_from. + //! Returns the end-const_iterator, if either i is the begin-const_iterator or + //! the list is empty. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements before i. + //! Constant if cache_last<> is true and i == end(). + const_iterator previous(const_iterator prev_from, const_iterator i) const + { + if(cache_last && (i.pointed_node() == this->get_end_node())){ + return const_iterator(detail::uncast(this->get_last_node()), this->real_value_traits_ptr()); + } + return const_iterator + (node_algorithms::get_previous_node + (prev_from.pointed_node(), i.pointed_node()), this->real_value_traits_ptr()); + } + + ///@cond + + //! <b>Requires</b>: prev_pos must be a dereferenceable iterator in *this or be + //! before_begin(), and f and before_l belong to another slist. + //! + //! <b>Effects</b>: Transfers the range [f, before_l] to this + //! list, after the element pointed by prev_pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Linear to the number of elements transferred + //! if constant_time_size is true. Constant-time otherwise. + //! + //! <b>Note</b>: Iterators of values obtained from the list that owned f and before_l now + //! point to elements of this list. Iterators of this list and all the references are not invalidated. + //! + //! <b>Warning</b>: Experimental function, don't use it! + void incorporate_after(const_iterator prev_pos, const node_ptr & f, const node_ptr & before_l) + { + if(constant_time_size) + this->incorporate_after(prev_pos, f, before_l, std::distance(f, before_l)+1); + else + this->priv_incorporate_after(prev_pos.pointed_node(), f, before_l); + } + + //! <b>Requires</b>: prev_pos must be a dereferenceable iterator in *this or be + //! before_begin(), and f and before_l belong to another slist. + //! n == std::distance(f, before_l) + 1. + //! + //! <b>Effects</b>: Transfers the range [f, before_l] to this + //! list, after the element pointed by prev_pos. + //! No destructors or copy constructors are called. + //! + //! <b>Throws</b>: Nothing. + //! + //! <b>Complexity</b>: Constant time. + //! + //! <b>Note</b>: Iterators of values obtained from the list that owned f and before_l now + //! point to elements of this list. Iterators of this list and all the references are not invalidated. + //! + //! <b>Warning</b>: Experimental function, don't use it! + void incorporate_after(const_iterator prev_pos, const node_ptr & f, const node_ptr & before_l, size_type n) + { + if(n){ + BOOST_INTRUSIVE_INVARIANT_ASSERT(n > 0); + BOOST_INTRUSIVE_INVARIANT_ASSERT + (size_type(std::distance + ( iterator(f, this->real_value_traits_ptr()) + , iterator(before_l, this->real_value_traits_ptr()))) + +1 == n); + this->priv_incorporate_after(prev_pos.pointed_node(), f, before_l); + if(constant_time_size){ + this->priv_size_traits().increase(n); + } + } + } + + ///@endcond + + private: + void priv_splice_after(const node_ptr & prev_pos_n, slist_impl &x, const node_ptr & before_f_n, const node_ptr & before_l_n) + { + if (cache_last && (before_f_n != before_l_n)){ + if(prev_pos_n == this->get_last_node()){ + this->set_last_node(before_l_n); + } + if(&x != this && node_traits::get_next(before_l_n) == x.get_end_node()){ + x.set_last_node(before_f_n); + } + } + node_algorithms::transfer_after(prev_pos_n, before_f_n, before_l_n); + } + + void priv_incorporate_after(const node_ptr & prev_pos_n, const node_ptr & first_n, const node_ptr & before_l_n) + { + if(cache_last){ + if(prev_pos_n == this->get_last_node()){ + this->set_last_node(before_l_n); + } + } + node_algorithms::incorporate_after(prev_pos_n, first_n, before_l_n); + } + + void priv_reverse(detail::bool_<false>) + { node_algorithms::reverse(this->get_root_node()); } + + void priv_reverse(detail::bool_<true>) + { + node_ptr new_first = node_algorithms::reverse + (node_traits::get_next(this->get_root_node())); + node_traits::set_next(this->get_root_node(), new_first); + } + + void priv_shift_backwards(size_type n, detail::bool_<false>) + { + node_ptr l = node_algorithms::move_forward(this->get_root_node(), (std::size_t)n); + if(cache_last && l){ + this->set_last_node(l); + } + } + + void priv_shift_backwards(size_type n, detail::bool_<true>) + { + std::pair<node_ptr, node_ptr> ret( + node_algorithms::move_first_n_forward + (node_traits::get_next(this->get_root_node()), (std::size_t)n)); + if(ret.first){ + node_traits::set_next(this->get_root_node(), ret.first); + if(cache_last){ + this->set_last_node(ret.second); + } + } + } + + void priv_shift_forward(size_type n, detail::bool_<false>) + { + node_ptr l = node_algorithms::move_backwards(this->get_root_node(), (std::size_t)n); + if(cache_last && l){ + this->set_last_node(l); + } + } + + void priv_shift_forward(size_type n, detail::bool_<true>) + { + std::pair<node_ptr, node_ptr> ret( + node_algorithms::move_first_n_backwards + (node_traits::get_next(this->get_root_node()), (std::size_t)n)); + if(ret.first){ + node_traits::set_next(this->get_root_node(), ret.first); + if(cache_last){ + this->set_last_node(ret.second); + } + } + } + + static void priv_swap_cache_last(slist_impl *this_impl, slist_impl *other_impl) + { + bool other_was_empty = false; + if(this_impl->empty()){ + //Check if both are empty or + if(other_impl->empty()) + return; + //If this is empty swap pointers + slist_impl *tmp = this_impl; + this_impl = other_impl; + other_impl = tmp; + other_was_empty = true; + } + else{ + other_was_empty = other_impl->empty(); + } + + //Precondition: this is not empty + node_ptr other_old_last(other_impl->get_last_node()); + node_ptr other_bfirst(other_impl->get_root_node()); + node_ptr this_bfirst(this_impl->get_root_node()); + node_ptr this_old_last(this_impl->get_last_node()); + + //Move all nodes from this to other's beginning + node_algorithms::transfer_after(other_bfirst, this_bfirst, this_old_last); + other_impl->set_last_node(this_old_last); + + if(other_was_empty){ + this_impl->set_last_node(this_bfirst); + } + else{ + //Move trailing nodes from other to this + node_algorithms::transfer_after(this_bfirst, this_old_last, other_old_last); + this_impl->set_last_node(other_old_last); + } + } + + //circular version + static void priv_swap_lists(const node_ptr & this_node, const node_ptr & other_node, detail::bool_<false>) + { node_algorithms::swap_nodes(this_node, other_node); } + + //linear version + static void priv_swap_lists(const node_ptr & this_node, const node_ptr & other_node, detail::bool_<true>) + { node_algorithms::swap_trailing_nodes(this_node, other_node); } + + static slist_impl &priv_container_from_end_iterator(const const_iterator &end_iterator) + { + //Obtaining the container from the end iterator is not possible with linear + //singly linked lists (because "end" is represented by the null pointer) + BOOST_STATIC_ASSERT(!linear); + root_plus_size *r = detail::parent_from_member<root_plus_size, node> + ( boost::intrusive::detail::to_raw_pointer(end_iterator.pointed_node()), (&root_plus_size::root_)); + data_t *d = detail::parent_from_member<data_t, root_plus_size> + ( r, &data_t::root_plus_size_); + slist_impl *s = detail::parent_from_member<slist_impl, data_t>(d, &slist_impl::data_); + return *s; + } +}; + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline bool operator< +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); } + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +bool operator== +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ + typedef slist_impl<ValueTraits, SizeType, BoolFlags> slist_type; + typedef typename slist_type::const_iterator const_iterator; + const bool C = slist_type::constant_time_size; + if(C && x.size() != y.size()){ + return false; + } + const_iterator end1 = x.end(); + + const_iterator i1 = x.begin(); + const_iterator i2 = y.begin(); + if(C){ + while (i1 != end1 && *i1 == *i2) { + ++i1; + ++i2; + } + return i1 == end1; + } + else{ + const_iterator end2 = y.end(); + while (i1 != end1 && i2 != end2 && *i1 == *i2) { + ++i1; + ++i2; + } + return i1 == end1 && i2 == end2; + } +} + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline bool operator!= +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ return !(x == y); } + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline bool operator> +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ return y < x; } + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline bool operator<= +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ return !(y < x); } + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline bool operator>= +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(const slist_impl<T, Options...> &x, const slist_impl<T, Options...> &y) +#else +( const slist_impl<ValueTraits, SizeType, BoolFlags> &x +, const slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ return !(x < y); } + +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +template<class T, class ...Options> +#else +template<class ValueTraits, class SizeType, std::size_t BoolFlags> +#endif +inline void swap +#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) +(slist_impl<T, Options...> &x, slist_impl<T, Options...> &y) +#else +( slist_impl<ValueTraits, SizeType, BoolFlags> &x +, slist_impl<ValueTraits, SizeType, BoolFlags> &y) +#endif +{ x.swap(y); } + +//! Helper metafunction to define a \c slist 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 T, class ...Options> +#else +template<class T, class O1 = void, class O2 = void, class O3 = void, class O4 = void, class O5 = void> +#endif +struct make_slist +{ + /// @cond + typedef typename pack_options + < slist_defaults, + #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) + O1, O2, O3, O4, O5 + #else + Options... + #endif + >::type packed_options; + typedef typename detail::get_value_traits + <T, typename packed_options::proto_value_traits>::type value_traits; + typedef slist_impl + < value_traits + , typename packed_options::size_type + , (std::size_t(packed_options::linear)*slist_bool_flags::linear_pos) + |(std::size_t(packed_options::constant_time_size)*slist_bool_flags::constant_time_size_pos) + |(std::size_t(packed_options::cache_last)*slist_bool_flags::cache_last_pos) + > implementation_defined; + /// @endcond + typedef implementation_defined type; +}; + + +#ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED + +#if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) +template<class T, class O1, class O2, class O3, class O4, class O5> +#else +template<class T, class ...Options> +#endif +class slist + : public make_slist<T, + #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) + O1, O2, O3, O4, O5 + #else + Options... + #endif + >::type +{ + typedef typename make_slist + <T, + #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES) + O1, O2, O3, O4, O5 + #else + Options... + #endif + >::type Base; + typedef typename Base::real_value_traits real_value_traits; + //Assert if passed value traits are compatible with the type + BOOST_STATIC_ASSERT((detail::is_same<typename real_value_traits::value_type, T>::value)); + BOOST_MOVABLE_BUT_NOT_COPYABLE(slist) + + public: + typedef typename Base::value_traits value_traits; + typedef typename Base::iterator iterator; + typedef typename Base::const_iterator const_iterator; + typedef typename Base::size_type size_type; + typedef typename Base::node_ptr node_ptr; + + explicit slist(const value_traits &v_traits = value_traits()) + : Base(v_traits) + {} + + struct incorporate_t{}; + + slist( const node_ptr & f, const node_ptr & before_l + , size_type n, const value_traits &v_traits = value_traits()) + : Base(f, before_l, n, v_traits) + {} + + template<class Iterator> + slist(Iterator b, Iterator e, const value_traits &v_traits = value_traits()) + : Base(b, e, v_traits) + {} + + slist(BOOST_RV_REF(slist) x) + : Base(::boost::move(static_cast<Base&>(x))) + {} + + slist& operator=(BOOST_RV_REF(slist) x) + { return static_cast<slist &>(this->Base::operator=(::boost::move(static_cast<Base&>(x)))); } + + static slist &container_from_end_iterator(iterator end_iterator) + { return static_cast<slist &>(Base::container_from_end_iterator(end_iterator)); } + + static const slist &container_from_end_iterator(const_iterator end_iterator) + { return static_cast<const slist &>(Base::container_from_end_iterator(end_iterator)); } +}; + +#endif + +} //namespace intrusive +} //namespace boost + +#include <boost/intrusive/detail/config_end.hpp> + +#endif //BOOST_INTRUSIVE_SLIST_HPP