1726 lines
52 KiB
C++
1726 lines
52 KiB
C++
/* Copyright 2003-2015 Joaquin M Lopez Munoz.
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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/multi_index for library home page.
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*/
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#ifndef BOOST_MULTI_INDEX_HASHED_INDEX_HPP
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#define BOOST_MULTI_INDEX_HASHED_INDEX_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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#include <algorithm>
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#include <boost/call_traits.hpp>
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#include <boost/detail/allocator_utilities.hpp>
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#include <boost/detail/no_exceptions_support.hpp>
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#include <boost/detail/workaround.hpp>
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#include <boost/foreach_fwd.hpp>
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#include <boost/limits.hpp>
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#include <boost/move/core.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/mpl/if.hpp>
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#include <boost/mpl/push_front.hpp>
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#include <boost/multi_index/detail/access_specifier.hpp>
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#include <boost/multi_index/detail/auto_space.hpp>
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#include <boost/multi_index/detail/bucket_array.hpp>
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#include <boost/multi_index/detail/do_not_copy_elements_tag.hpp>
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#include <boost/multi_index/detail/hash_index_iterator.hpp>
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#include <boost/multi_index/detail/index_node_base.hpp>
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#include <boost/multi_index/detail/modify_key_adaptor.hpp>
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#include <boost/multi_index/detail/promotes_arg.hpp>
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#include <boost/multi_index/detail/safe_mode.hpp>
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#include <boost/multi_index/detail/scope_guard.hpp>
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#include <boost/multi_index/detail/vartempl_support.hpp>
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#include <boost/multi_index/hashed_index_fwd.hpp>
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#include <boost/tuple/tuple.hpp>
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#include <boost/type_traits/is_same.hpp>
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#include <cmath>
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#include <cstddef>
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#include <functional>
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#include <iterator>
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#include <utility>
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#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
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#include <initializer_list>
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#endif
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#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
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#include <boost/serialization/nvp.hpp>
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#endif
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#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
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#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x) \
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detail::scope_guard BOOST_JOIN(check_invariant_,__LINE__)= \
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detail::make_obj_guard(x,&hashed_index::check_invariant_); \
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BOOST_JOIN(check_invariant_,__LINE__).touch();
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#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT \
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(*this)
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#else
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#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x)
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#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT
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#endif
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namespace boost{
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namespace multi_index{
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namespace detail{
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/* hashed_index adds a layer of hashed indexing to a given Super */
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/* Most of the implementation of unique and non-unique indices is
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* shared. We tell from one another on instantiation time by using
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* Category tags defined in hash_index_node.hpp.
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*/
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template<
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typename KeyFromValue,typename Hash,typename Pred,
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typename SuperMeta,typename TagList,typename Category
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>
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class hashed_index:
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BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS SuperMeta::type
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#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
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,public safe_mode::safe_container<
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hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category> >
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#endif
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{
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#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)&&\
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BOOST_WORKAROUND(__MWERKS__,<=0x3003)
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/* The "ISO C++ Template Parser" option in CW8.3 has a problem with the
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* lifetime of const references bound to temporaries --precisely what
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* scopeguards are.
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*/
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#pragma parse_mfunc_templ off
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#endif
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typedef typename SuperMeta::type super;
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protected:
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typedef hashed_index_node<
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typename super::node_type,Category> node_type;
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private:
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typedef typename node_type::node_alg node_alg;
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typedef typename node_type::impl_type node_impl_type;
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typedef typename node_impl_type::pointer node_impl_pointer;
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typedef typename node_impl_type::base_pointer node_impl_base_pointer;
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typedef bucket_array<
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typename super::final_allocator_type> bucket_array_type;
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public:
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/* types */
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typedef typename KeyFromValue::result_type key_type;
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typedef typename node_type::value_type value_type;
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typedef KeyFromValue key_from_value;
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typedef Hash hasher;
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typedef Pred key_equal;
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typedef tuple<std::size_t,
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key_from_value,hasher,key_equal> ctor_args;
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typedef typename super::final_allocator_type allocator_type;
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typedef typename allocator_type::pointer pointer;
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typedef typename allocator_type::const_pointer const_pointer;
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typedef typename allocator_type::reference reference;
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typedef typename allocator_type::const_reference const_reference;
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typedef std::size_t size_type;
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typedef std::ptrdiff_t difference_type;
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#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
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typedef safe_mode::safe_iterator<
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hashed_index_iterator<
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node_type,bucket_array_type,
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hashed_index_global_iterator_tag>,
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hashed_index> iterator;
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#else
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typedef hashed_index_iterator<
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node_type,bucket_array_type,
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hashed_index_global_iterator_tag> iterator;
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#endif
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typedef iterator const_iterator;
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typedef hashed_index_iterator<
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node_type,bucket_array_type,
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hashed_index_local_iterator_tag> local_iterator;
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typedef local_iterator const_local_iterator;
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typedef TagList tag_list;
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protected:
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typedef typename super::final_node_type final_node_type;
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typedef tuples::cons<
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ctor_args,
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typename super::ctor_args_list> ctor_args_list;
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typedef typename mpl::push_front<
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typename super::index_type_list,
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hashed_index>::type index_type_list;
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typedef typename mpl::push_front<
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typename super::iterator_type_list,
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iterator>::type iterator_type_list;
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typedef typename mpl::push_front<
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typename super::const_iterator_type_list,
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const_iterator>::type const_iterator_type_list;
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typedef typename super::copy_map_type copy_map_type;
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#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
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typedef typename super::index_saver_type index_saver_type;
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typedef typename super::index_loader_type index_loader_type;
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#endif
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private:
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#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
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typedef safe_mode::safe_container<
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hashed_index> safe_super;
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#endif
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typedef typename call_traits<value_type>::param_type value_param_type;
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typedef typename call_traits<
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key_type>::param_type key_param_type;
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/* Needed to avoid commas in BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL
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* expansion.
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*/
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typedef std::pair<iterator,bool> emplace_return_type;
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public:
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/* construct/destroy/copy
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* Default and copy ctors are in the protected section as indices are
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* not supposed to be created on their own. No range ctor either.
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*/
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hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& operator=(
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const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
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{
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this->final()=x.final();
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return *this;
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}
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#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
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hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& operator=(
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std::initializer_list<value_type> list)
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{
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this->final()=list;
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return *this;
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}
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#endif
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allocator_type get_allocator()const BOOST_NOEXCEPT
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{
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return this->final().get_allocator();
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}
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/* size and capacity */
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bool empty()const BOOST_NOEXCEPT{return this->final_empty_();}
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size_type size()const BOOST_NOEXCEPT{return this->final_size_();}
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size_type max_size()const BOOST_NOEXCEPT{return this->final_max_size_();}
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/* iterators */
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iterator begin()BOOST_NOEXCEPT
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{return make_iterator(node_type::from_impl(header()->next()->prior()));}
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const_iterator begin()const BOOST_NOEXCEPT
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{return make_iterator(node_type::from_impl(header()->next()->prior()));}
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iterator end()BOOST_NOEXCEPT{return make_iterator(header());}
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const_iterator end()const BOOST_NOEXCEPT{return make_iterator(header());}
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const_iterator cbegin()const BOOST_NOEXCEPT{return begin();}
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const_iterator cend()const BOOST_NOEXCEPT{return end();}
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iterator iterator_to(const value_type& x)
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{
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return make_iterator(node_from_value<node_type>(&x));
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}
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const_iterator iterator_to(const value_type& x)const
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{
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return make_iterator(node_from_value<node_type>(&x));
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}
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/* modifiers */
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BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL(
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emplace_return_type,emplace,emplace_impl)
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BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG(
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iterator,emplace_hint,emplace_hint_impl,iterator,position)
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std::pair<iterator,bool> insert(const value_type& x)
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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std::pair<final_node_type*,bool> p=this->final_insert_(x);
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return std::pair<iterator,bool>(make_iterator(p.first),p.second);
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}
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std::pair<iterator,bool> insert(BOOST_RV_REF(value_type) x)
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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std::pair<final_node_type*,bool> p=this->final_insert_rv_(x);
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return std::pair<iterator,bool>(make_iterator(p.first),p.second);
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}
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iterator insert(iterator position,const value_type& x)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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std::pair<final_node_type*,bool> p=this->final_insert_(
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x,static_cast<final_node_type*>(position.get_node()));
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return make_iterator(p.first);
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}
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iterator insert(iterator position,BOOST_RV_REF(value_type) x)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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std::pair<final_node_type*,bool> p=this->final_insert_rv_(
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x,static_cast<final_node_type*>(position.get_node()));
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return make_iterator(p.first);
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}
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template<typename InputIterator>
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void insert(InputIterator first,InputIterator last)
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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for(;first!=last;++first)this->final_insert_ref_(*first);
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}
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#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
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void insert(std::initializer_list<value_type> list)
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{
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insert(list.begin(),list.end());
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}
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#endif
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iterator erase(iterator position)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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this->final_erase_(static_cast<final_node_type*>(position++.get_node()));
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return position;
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}
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size_type erase(key_param_type k)
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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std::size_t buc=buckets.position(hash_(k));
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for(node_impl_pointer x=buckets.at(buc)->prior();
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x!=node_impl_pointer(0);x=node_alg::next_to_inspect(x)){
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if(eq_(k,key(node_type::from_impl(x)->value()))){
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node_impl_pointer y=end_of_range(x);
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size_type s=0;
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do{
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node_impl_pointer z=node_alg::after(x);
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this->final_erase_(
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static_cast<final_node_type*>(node_type::from_impl(x)));
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x=z;
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++s;
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}while(x!=y);
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return s;
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}
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}
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return 0;
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}
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iterator erase(iterator first,iterator last)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(first);
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(last);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(first,*this);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(last,*this);
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BOOST_MULTI_INDEX_CHECK_VALID_RANGE(first,last);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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while(first!=last){
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first=erase(first);
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}
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return first;
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}
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bool replace(iterator position,const value_type& x)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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return this->final_replace_(
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x,static_cast<final_node_type*>(position.get_node()));
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}
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bool replace(iterator position,BOOST_RV_REF(value_type) x)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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return this->final_replace_rv_(
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x,static_cast<final_node_type*>(position.get_node()));
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}
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template<typename Modifier>
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bool modify(iterator position,Modifier mod)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
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/* MSVC++ 6.0 optimizer on safe mode code chokes if this
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* this is not added. Left it for all compilers as it does no
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* harm.
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*/
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position.detach();
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#endif
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return this->final_modify_(
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mod,static_cast<final_node_type*>(position.get_node()));
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}
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template<typename Modifier,typename Rollback>
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bool modify(iterator position,Modifier mod,Rollback back_)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
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/* MSVC++ 6.0 optimizer on safe mode code chokes if this
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* this is not added. Left it for all compilers as it does no
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* harm.
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*/
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position.detach();
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#endif
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return this->final_modify_(
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mod,back_,static_cast<final_node_type*>(position.get_node()));
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}
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template<typename Modifier>
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bool modify_key(iterator position,Modifier mod)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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return modify(
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position,modify_key_adaptor<Modifier,value_type,KeyFromValue>(mod,key));
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}
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template<typename Modifier,typename Rollback>
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bool modify_key(iterator position,Modifier mod,Rollback back_)
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{
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BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
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BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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return modify(
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position,
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modify_key_adaptor<Modifier,value_type,KeyFromValue>(mod,key),
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modify_key_adaptor<Rollback,value_type,KeyFromValue>(back_,key));
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}
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void clear()BOOST_NOEXCEPT
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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this->final_clear_();
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}
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void swap(hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
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{
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x);
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this->final_swap_(x.final());
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}
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/* observers */
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key_from_value key_extractor()const{return key;}
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hasher hash_function()const{return hash_;}
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key_equal key_eq()const{return eq_;}
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/* lookup */
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/* Internally, these ops rely on const_iterator being the same
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* type as iterator.
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*/
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/* Implementation note: When CompatibleKey is consistently promoted to
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* KeyFromValue::result_type for equality comparison, the promotion is made
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* once in advance to increase efficiency.
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*/
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template<typename CompatibleKey>
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iterator find(const CompatibleKey& k)const
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{
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return find(k,hash_,eq_);
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}
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template<
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typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
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>
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|
iterator find(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq)const
|
|
{
|
|
return find(
|
|
k,hash,eq,promotes_1st_arg<CompatiblePred,CompatibleKey,key_type>());
|
|
}
|
|
|
|
template<typename CompatibleKey>
|
|
size_type count(const CompatibleKey& k)const
|
|
{
|
|
return count(k,hash_,eq_);
|
|
}
|
|
|
|
template<
|
|
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
size_type count(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq)const
|
|
{
|
|
return count(
|
|
k,hash,eq,promotes_1st_arg<CompatiblePred,CompatibleKey,key_type>());
|
|
}
|
|
|
|
template<typename CompatibleKey>
|
|
std::pair<iterator,iterator> equal_range(const CompatibleKey& k)const
|
|
{
|
|
return equal_range(k,hash_,eq_);
|
|
}
|
|
|
|
template<
|
|
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
std::pair<iterator,iterator> equal_range(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq)const
|
|
{
|
|
return equal_range(
|
|
k,hash,eq,promotes_1st_arg<CompatiblePred,CompatibleKey,key_type>());
|
|
}
|
|
|
|
/* bucket interface */
|
|
|
|
size_type bucket_count()const BOOST_NOEXCEPT{return buckets.size();}
|
|
size_type max_bucket_count()const BOOST_NOEXCEPT{return static_cast<size_type>(-1);}
|
|
|
|
size_type bucket_size(size_type n)const
|
|
{
|
|
size_type res=0;
|
|
for(node_impl_pointer x=buckets.at(n)->prior();
|
|
x!=node_impl_pointer(0);x=node_alg::after_local(x)){
|
|
++res;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
size_type bucket(key_param_type k)const
|
|
{
|
|
return buckets.position(hash_(k));
|
|
}
|
|
|
|
local_iterator begin(size_type n)
|
|
{
|
|
return const_cast<const hashed_index*>(this)->begin(n);
|
|
}
|
|
|
|
const_local_iterator begin(size_type n)const
|
|
{
|
|
node_impl_pointer x=buckets.at(n)->prior();
|
|
if(x==node_impl_pointer(0))return end(n);
|
|
return make_local_iterator(node_type::from_impl(x));
|
|
}
|
|
|
|
local_iterator end(size_type n)
|
|
{
|
|
return const_cast<const hashed_index*>(this)->end(n);
|
|
}
|
|
|
|
const_local_iterator end(size_type)const
|
|
{
|
|
return make_local_iterator(0);
|
|
}
|
|
|
|
const_local_iterator cbegin(size_type n)const{return begin(n);}
|
|
const_local_iterator cend(size_type n)const{return end(n);}
|
|
|
|
local_iterator local_iterator_to(const value_type& x)
|
|
{
|
|
return make_local_iterator(node_from_value<node_type>(&x));
|
|
}
|
|
|
|
const_local_iterator local_iterator_to(const value_type& x)const
|
|
{
|
|
return make_local_iterator(node_from_value<node_type>(&x));
|
|
}
|
|
|
|
/* hash policy */
|
|
|
|
float load_factor()const BOOST_NOEXCEPT
|
|
{return static_cast<float>(size())/bucket_count();}
|
|
float max_load_factor()const BOOST_NOEXCEPT{return mlf;}
|
|
void max_load_factor(float z){mlf=z;calculate_max_load();}
|
|
|
|
void rehash(size_type n)
|
|
{
|
|
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
|
|
if(size()<=max_load&&n<=bucket_count())return;
|
|
|
|
size_type bc =(std::numeric_limits<size_type>::max)();
|
|
float fbc=static_cast<float>(1+size()/mlf);
|
|
if(bc>fbc){
|
|
bc=static_cast<size_type>(fbc);
|
|
if(bc<n)bc=n;
|
|
}
|
|
unchecked_rehash(bc);
|
|
}
|
|
|
|
void reserve(size_type n)
|
|
{
|
|
rehash(static_cast<size_type>(std::ceil(static_cast<double>(n)/mlf)));
|
|
}
|
|
|
|
BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS:
|
|
hashed_index(const ctor_args_list& args_list,const allocator_type& al):
|
|
super(args_list.get_tail(),al),
|
|
key(tuples::get<1>(args_list.get_head())),
|
|
hash_(tuples::get<2>(args_list.get_head())),
|
|
eq_(tuples::get<3>(args_list.get_head())),
|
|
buckets(al,header()->impl(),tuples::get<0>(args_list.get_head())),
|
|
mlf(1.0f)
|
|
{
|
|
calculate_max_load();
|
|
}
|
|
|
|
hashed_index(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x):
|
|
super(x),
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
safe_super(),
|
|
#endif
|
|
|
|
key(x.key),
|
|
hash_(x.hash_),
|
|
eq_(x.eq_),
|
|
buckets(x.get_allocator(),header()->impl(),x.buckets.size()),
|
|
mlf(x.mlf),
|
|
max_load(x.max_load)
|
|
{
|
|
/* Copy ctor just takes the internal configuration objects from x. The rest
|
|
* is done in subsequent call to copy_().
|
|
*/
|
|
}
|
|
|
|
hashed_index(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
do_not_copy_elements_tag):
|
|
super(x,do_not_copy_elements_tag()),
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
safe_super(),
|
|
#endif
|
|
|
|
key(x.key),
|
|
hash_(x.hash_),
|
|
eq_(x.eq_),
|
|
buckets(x.get_allocator(),header()->impl(),0),
|
|
mlf(1.0f)
|
|
{
|
|
calculate_max_load();
|
|
}
|
|
|
|
~hashed_index()
|
|
{
|
|
/* the container is guaranteed to be empty by now */
|
|
}
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
iterator make_iterator(node_type* node)
|
|
{
|
|
return iterator(node,this);
|
|
}
|
|
|
|
const_iterator make_iterator(node_type* node)const
|
|
{
|
|
return const_iterator(node,const_cast<hashed_index*>(this));
|
|
}
|
|
#else
|
|
iterator make_iterator(node_type* node)
|
|
{
|
|
return iterator(node);
|
|
}
|
|
|
|
const_iterator make_iterator(node_type* node)const
|
|
{
|
|
return const_iterator(node);
|
|
}
|
|
#endif
|
|
|
|
local_iterator make_local_iterator(node_type* node)
|
|
{
|
|
return local_iterator(node);
|
|
}
|
|
|
|
const_local_iterator make_local_iterator(node_type* node)const
|
|
{
|
|
return const_local_iterator(node);
|
|
}
|
|
|
|
void copy_(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
const copy_map_type& map)
|
|
{
|
|
copy_(x,map,Category());
|
|
}
|
|
|
|
void copy_(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
const copy_map_type& map,hashed_unique_tag)
|
|
{
|
|
if(x.size()!=0){
|
|
node_impl_pointer end_org=x.header()->impl(),
|
|
org=end_org,
|
|
cpy=header()->impl();
|
|
do{
|
|
node_impl_pointer prev_org=org->prior(),
|
|
prev_cpy=
|
|
static_cast<node_type*>(map.find(static_cast<final_node_type*>(
|
|
node_type::from_impl(prev_org))))->impl();
|
|
cpy->prior()=prev_cpy;
|
|
if(node_alg::is_first_of_bucket(org)){
|
|
node_impl_base_pointer buc_org=prev_org->next(),
|
|
buc_cpy=
|
|
buckets.begin()+(buc_org-x.buckets.begin());
|
|
prev_cpy->next()=buc_cpy;
|
|
buc_cpy->prior()=cpy;
|
|
}
|
|
else{
|
|
prev_cpy->next()=node_impl_type::base_pointer_from(cpy);
|
|
}
|
|
org=prev_org;
|
|
cpy=prev_cpy;
|
|
}while(org!=end_org);
|
|
}
|
|
|
|
super::copy_(x,map);
|
|
}
|
|
|
|
void copy_(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
const copy_map_type& map,hashed_non_unique_tag)
|
|
{
|
|
if(x.size()!=0){
|
|
node_impl_pointer end_org=x.header()->impl(),
|
|
org=end_org,
|
|
cpy=header()->impl();
|
|
do{
|
|
node_impl_pointer next_org=node_alg::after(org),
|
|
next_cpy=
|
|
static_cast<node_type*>(map.find(static_cast<final_node_type*>(
|
|
node_type::from_impl(next_org))))->impl();
|
|
if(node_alg::is_first_of_bucket(next_org)){
|
|
node_impl_base_pointer buc_org=org->next(),
|
|
buc_cpy=
|
|
buckets.begin()+(buc_org-x.buckets.begin());
|
|
cpy->next()=buc_cpy;
|
|
buc_cpy->prior()=next_cpy;
|
|
next_cpy->prior()=cpy;
|
|
}
|
|
else{
|
|
if(org->next()==node_impl_type::base_pointer_from(next_org)){
|
|
cpy->next()=node_impl_type::base_pointer_from(next_cpy);
|
|
}
|
|
else{
|
|
cpy->next()=
|
|
node_impl_type::base_pointer_from(
|
|
static_cast<node_type*>(map.find(static_cast<final_node_type*>(
|
|
node_type::from_impl(
|
|
node_impl_type::pointer_from(org->next())))))->impl());
|
|
}
|
|
|
|
if(next_org->prior()!=org){
|
|
next_cpy->prior()=
|
|
static_cast<node_type*>(map.find(static_cast<final_node_type*>(
|
|
node_type::from_impl(next_org->prior()))))->impl();
|
|
}
|
|
else{
|
|
next_cpy->prior()=cpy;
|
|
}
|
|
}
|
|
org=next_org;
|
|
cpy=next_cpy;
|
|
}while(org!=end_org);
|
|
}
|
|
|
|
super::copy_(x,map);
|
|
}
|
|
|
|
template<typename Variant>
|
|
final_node_type* insert_(
|
|
value_param_type v,final_node_type*& x,Variant variant)
|
|
{
|
|
reserve_for_insert(size()+1);
|
|
|
|
std::size_t buc=find_bucket(v);
|
|
link_info pos(buckets.at(buc));
|
|
if(!link_point(v,pos)){
|
|
return static_cast<final_node_type*>(
|
|
node_type::from_impl(node_impl_type::pointer_from(pos)));
|
|
}
|
|
|
|
final_node_type* res=super::insert_(v,x,variant);
|
|
if(res==x)link(static_cast<node_type*>(x),pos);
|
|
return res;
|
|
}
|
|
|
|
template<typename Variant>
|
|
final_node_type* insert_(
|
|
value_param_type v,node_type* position,final_node_type*& x,Variant variant)
|
|
{
|
|
reserve_for_insert(size()+1);
|
|
|
|
std::size_t buc=find_bucket(v);
|
|
link_info pos(buckets.at(buc));
|
|
if(!link_point(v,pos)){
|
|
return static_cast<final_node_type*>(
|
|
node_type::from_impl(node_impl_type::pointer_from(pos)));
|
|
}
|
|
|
|
final_node_type* res=super::insert_(v,position,x,variant);
|
|
if(res==x)link(static_cast<node_type*>(x),pos);
|
|
return res;
|
|
}
|
|
|
|
void erase_(node_type* x)
|
|
{
|
|
unlink(x);
|
|
super::erase_(x);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
detach_iterators(x);
|
|
#endif
|
|
}
|
|
|
|
void delete_all_nodes_()
|
|
{
|
|
delete_all_nodes_(Category());
|
|
}
|
|
|
|
void delete_all_nodes_(hashed_unique_tag)
|
|
{
|
|
for(node_impl_pointer x_end=header()->impl(),x=x_end->prior();x!=x_end;){
|
|
node_impl_pointer y=x->prior();
|
|
this->final_delete_node_(
|
|
static_cast<final_node_type*>(node_type::from_impl(x)));
|
|
x=y;
|
|
}
|
|
}
|
|
|
|
void delete_all_nodes_(hashed_non_unique_tag)
|
|
{
|
|
for(node_impl_pointer x_end=header()->impl(),x=x_end->prior();x!=x_end;){
|
|
node_impl_pointer y=x->prior();
|
|
if(y->next()!=node_impl_type::base_pointer_from(x)&&
|
|
y->next()->prior()!=x){ /* n-1 of group */
|
|
/* Make the second node prior() pointer back-linked so that it won't
|
|
* refer to a deleted node when the time for its own destruction comes.
|
|
*/
|
|
|
|
node_impl_pointer first=node_impl_type::pointer_from(y->next());
|
|
first->next()->prior()=first;
|
|
}
|
|
this->final_delete_node_(
|
|
static_cast<final_node_type*>(node_type::from_impl(x)));
|
|
x=y;
|
|
}
|
|
}
|
|
|
|
void clear_()
|
|
{
|
|
super::clear_();
|
|
buckets.clear(header()->impl());
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
safe_super::detach_dereferenceable_iterators();
|
|
#endif
|
|
}
|
|
|
|
void swap_(
|
|
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
|
|
{
|
|
std::swap(key,x.key);
|
|
std::swap(hash_,x.hash_);
|
|
std::swap(eq_,x.eq_);
|
|
buckets.swap(x.buckets);
|
|
std::swap(mlf,x.mlf);
|
|
std::swap(max_load,x.max_load);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
safe_super::swap(x);
|
|
#endif
|
|
|
|
super::swap_(x);
|
|
}
|
|
|
|
void swap_elements_(
|
|
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
|
|
{
|
|
buckets.swap(x.buckets);
|
|
std::swap(mlf,x.mlf);
|
|
std::swap(max_load,x.max_load);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
safe_super::swap(x);
|
|
#endif
|
|
|
|
super::swap_elements_(x);
|
|
}
|
|
|
|
template<typename Variant>
|
|
bool replace_(value_param_type v,node_type* x,Variant variant)
|
|
{
|
|
if(eq_(key(v),key(x->value()))){
|
|
return super::replace_(v,x,variant);
|
|
}
|
|
|
|
unlink_undo undo;
|
|
unlink(x,undo);
|
|
|
|
BOOST_TRY{
|
|
std::size_t buc=find_bucket(v);
|
|
link_info pos(buckets.at(buc));
|
|
if(link_point(v,pos)&&super::replace_(v,x,variant)){
|
|
link(x,pos);
|
|
return true;
|
|
}
|
|
undo();
|
|
return false;
|
|
}
|
|
BOOST_CATCH(...){
|
|
undo();
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
bool modify_(node_type* x)
|
|
{
|
|
std::size_t buc;
|
|
bool b;
|
|
BOOST_TRY{
|
|
buc=find_bucket(x->value());
|
|
b=in_place(x->impl(),key(x->value()),buc);
|
|
}
|
|
BOOST_CATCH(...){
|
|
erase_(x);
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
if(!b){
|
|
unlink(x);
|
|
BOOST_TRY{
|
|
link_info pos(buckets.at(buc));
|
|
if(!link_point(x->value(),pos)){
|
|
super::erase_(x);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
detach_iterators(x);
|
|
#endif
|
|
return false;
|
|
}
|
|
link(x,pos);
|
|
}
|
|
BOOST_CATCH(...){
|
|
super::erase_(x);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
detach_iterators(x);
|
|
#endif
|
|
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
BOOST_TRY{
|
|
if(!super::modify_(x)){
|
|
unlink(x);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
detach_iterators(x);
|
|
#endif
|
|
return false;
|
|
}
|
|
else return true;
|
|
}
|
|
BOOST_CATCH(...){
|
|
unlink(x);
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
detach_iterators(x);
|
|
#endif
|
|
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
bool modify_rollback_(node_type* x)
|
|
{
|
|
std::size_t buc=find_bucket(x->value());
|
|
if(in_place(x->impl(),key(x->value()),buc)){
|
|
return super::modify_rollback_(x);
|
|
}
|
|
|
|
unlink_undo undo;
|
|
unlink(x,undo);
|
|
|
|
BOOST_TRY{
|
|
link_info pos(buckets.at(buc));
|
|
if(link_point(x->value(),pos)&&super::modify_rollback_(x)){
|
|
link(x,pos);
|
|
return true;
|
|
}
|
|
undo();
|
|
return false;
|
|
}
|
|
BOOST_CATCH(...){
|
|
undo();
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
/* comparison */
|
|
|
|
#if !defined(BOOST_NO_MEMBER_TEMPLATE_FRIENDS)
|
|
/* defect macro refers to class, not function, templates, but anyway */
|
|
|
|
template<typename K,typename H,typename P,typename S,typename T,typename C>
|
|
friend bool operator==(
|
|
const hashed_index<K,H,P,S,T,C>&,const hashed_index<K,H,P,S,T,C>& y);
|
|
#endif
|
|
|
|
bool equals(const hashed_index& x)const{return equals(x,Category());}
|
|
|
|
bool equals(const hashed_index& x,hashed_unique_tag)const
|
|
{
|
|
if(size()!=x.size())return false;
|
|
for(const_iterator it=begin(),it_end=end(),it2_end=x.end();
|
|
it!=it_end;++it){
|
|
const_iterator it2=x.find(key(*it));
|
|
if(it2==it2_end||!(*it==*it2))return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool equals(const hashed_index& x,hashed_non_unique_tag)const
|
|
{
|
|
if(size()!=x.size())return false;
|
|
for(const_iterator it=begin(),it_end=end();it!=it_end;){
|
|
const_iterator it2,it2_last;
|
|
boost::tie(it2,it2_last)=x.equal_range(key(*it));
|
|
if(it2==it2_last)return false;
|
|
|
|
const_iterator it_last=make_iterator(
|
|
node_type::from_impl(end_of_range(it.get_node()->impl())));
|
|
if(std::distance(it,it_last)!=std::distance(it2,it2_last))return false;
|
|
|
|
/* From is_permutation code in
|
|
* http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3068.pdf
|
|
*/
|
|
|
|
for(;it!=it_last;++it,++it2){
|
|
if(!(*it==*it2))break;
|
|
}
|
|
if(it!=it_last){
|
|
for(const_iterator scan=it;scan!=it_last;++scan){
|
|
if(std::find(it,scan,*scan)!=scan)continue;
|
|
std::ptrdiff_t matches=std::count(it2,it2_last,*scan);
|
|
if(matches==0||matches!=std::count(scan,it_last,*scan))return false;
|
|
}
|
|
it=it_last;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
|
|
/* serialization */
|
|
|
|
template<typename Archive>
|
|
void save_(
|
|
Archive& ar,const unsigned int version,const index_saver_type& sm)const
|
|
{
|
|
ar<<serialization::make_nvp("position",buckets);
|
|
super::save_(ar,version,sm);
|
|
}
|
|
|
|
template<typename Archive>
|
|
void load_(Archive& ar,const unsigned int version,const index_loader_type& lm)
|
|
{
|
|
ar>>serialization::make_nvp("position",buckets);
|
|
super::load_(ar,version,lm);
|
|
}
|
|
#endif
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
|
|
/* invariant stuff */
|
|
|
|
bool invariant_()const
|
|
{
|
|
if(size()==0||begin()==end()){
|
|
if(size()!=0||begin()!=end())return false;
|
|
}
|
|
else{
|
|
size_type s0=0;
|
|
for(const_iterator it=begin(),it_end=end();it!=it_end;++it,++s0){}
|
|
if(s0!=size())return false;
|
|
|
|
size_type s1=0;
|
|
for(size_type buc=0;buc<bucket_count();++buc){
|
|
size_type ss1=0;
|
|
for(const_local_iterator it=begin(buc),it_end=end(buc);
|
|
it!=it_end;++it,++ss1){
|
|
if(find_bucket(*it)!=buc)return false;
|
|
}
|
|
if(ss1!=bucket_size(buc))return false;
|
|
s1+=ss1;
|
|
}
|
|
if(s1!=size())return false;
|
|
}
|
|
|
|
return super::invariant_();
|
|
}
|
|
|
|
/* This forwarding function eases things for the boost::mem_fn construct
|
|
* in BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT. Actually,
|
|
* final_check_invariant is already an inherited member function of index.
|
|
*/
|
|
void check_invariant_()const{this->final_check_invariant_();}
|
|
#endif
|
|
|
|
private:
|
|
node_type* header()const{return this->final_header();}
|
|
|
|
std::size_t find_bucket(value_param_type v)const
|
|
{
|
|
return bucket(key(v));
|
|
}
|
|
|
|
struct link_info_non_unique
|
|
{
|
|
link_info_non_unique(node_impl_base_pointer pos):
|
|
first(pos),last(node_impl_base_pointer(0)){}
|
|
|
|
operator const node_impl_base_pointer&()const{return this->first;}
|
|
|
|
node_impl_base_pointer first,last;
|
|
};
|
|
|
|
typedef typename mpl::if_<
|
|
is_same<Category,hashed_unique_tag>,
|
|
node_impl_base_pointer,
|
|
link_info_non_unique
|
|
>::type link_info;
|
|
|
|
bool link_point(value_param_type v,link_info& pos)
|
|
{
|
|
return link_point(v,pos,Category());
|
|
}
|
|
|
|
bool link_point(
|
|
value_param_type v,node_impl_base_pointer& pos,hashed_unique_tag)
|
|
{
|
|
for(node_impl_pointer x=pos->prior();x!=node_impl_pointer(0);
|
|
x=node_alg::after_local(x)){
|
|
if(eq_(key(v),key(node_type::from_impl(x)->value()))){
|
|
pos=node_impl_type::base_pointer_from(x);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool link_point(
|
|
value_param_type v,link_info_non_unique& pos,hashed_non_unique_tag)
|
|
{
|
|
for(node_impl_pointer x=pos.first->prior();x!=node_impl_pointer(0);
|
|
x=node_alg::next_to_inspect(x)){
|
|
if(eq_(key(v),key(node_type::from_impl(x)->value()))){
|
|
pos.first=node_impl_type::base_pointer_from(x);
|
|
pos.last=node_impl_type::base_pointer_from(last_of_range(x));
|
|
return true;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
node_impl_pointer last_of_range(node_impl_pointer x)const
|
|
{
|
|
return last_of_range(x,Category());
|
|
}
|
|
|
|
node_impl_pointer last_of_range(node_impl_pointer x,hashed_unique_tag)const
|
|
{
|
|
return x;
|
|
}
|
|
|
|
node_impl_pointer last_of_range(
|
|
node_impl_pointer x,hashed_non_unique_tag)const
|
|
{
|
|
node_impl_base_pointer y=x->next();
|
|
node_impl_pointer z=y->prior();
|
|
if(z==x){ /* range of size 1 or 2 */
|
|
node_impl_pointer yy=node_impl_type::pointer_from(y);
|
|
return
|
|
eq_(
|
|
key(node_type::from_impl(x)->value()),
|
|
key(node_type::from_impl(yy)->value()))?yy:x;
|
|
}
|
|
else if(z->prior()==x) /* last of bucket */
|
|
return x;
|
|
else /* group of size>2 */
|
|
return z;
|
|
}
|
|
|
|
node_impl_pointer end_of_range(node_impl_pointer x)const
|
|
{
|
|
return end_of_range(x,Category());
|
|
}
|
|
|
|
node_impl_pointer end_of_range(node_impl_pointer x,hashed_unique_tag)const
|
|
{
|
|
return node_alg::after(last_of_range(x));
|
|
}
|
|
|
|
node_impl_pointer end_of_range(
|
|
node_impl_pointer x,hashed_non_unique_tag)const
|
|
{
|
|
node_impl_base_pointer y=x->next();
|
|
node_impl_pointer z=y->prior();
|
|
if(z==x){ /* range of size 1 or 2 */
|
|
node_impl_pointer yy=node_impl_type::pointer_from(y);
|
|
if(!eq_(
|
|
key(node_type::from_impl(x)->value()),
|
|
key(node_type::from_impl(yy)->value())))yy=x;
|
|
return yy->next()->prior()==yy?
|
|
node_impl_type::pointer_from(yy->next()):
|
|
yy->next()->prior();
|
|
}
|
|
else if(z->prior()==x) /* last of bucket */
|
|
return z;
|
|
else /* group of size>2 */
|
|
return z->next()->prior()==z?
|
|
node_impl_type::pointer_from(z->next()):
|
|
z->next()->prior();
|
|
}
|
|
|
|
void link(node_type* x,const link_info& pos)
|
|
{
|
|
link(x,pos,Category());
|
|
}
|
|
|
|
void link(node_type* x,node_impl_base_pointer pos,hashed_unique_tag)
|
|
{
|
|
node_alg::link(x->impl(),pos,header()->impl());
|
|
}
|
|
|
|
void link(node_type* x,const link_info_non_unique& pos,hashed_non_unique_tag)
|
|
{
|
|
if(pos.last==node_impl_base_pointer(0)){
|
|
node_alg::link(x->impl(),pos.first,header()->impl());
|
|
}
|
|
else{
|
|
node_alg::link(
|
|
x->impl(),
|
|
node_impl_type::pointer_from(pos.first),
|
|
node_impl_type::pointer_from(pos.last));
|
|
}
|
|
}
|
|
|
|
void unlink(node_type* x)
|
|
{
|
|
node_alg::unlink(x->impl());
|
|
}
|
|
|
|
typedef typename node_alg::unlink_undo unlink_undo;
|
|
|
|
void unlink(node_type* x,unlink_undo& undo)
|
|
{
|
|
node_alg::unlink(x->impl(),undo);
|
|
}
|
|
|
|
void calculate_max_load()
|
|
{
|
|
float fml=static_cast<float>(mlf*static_cast<float>(bucket_count()));
|
|
max_load=(std::numeric_limits<size_type>::max)();
|
|
if(max_load>fml)max_load=static_cast<size_type>(fml);
|
|
}
|
|
|
|
void reserve_for_insert(size_type n)
|
|
{
|
|
if(n>max_load){
|
|
size_type bc =(std::numeric_limits<size_type>::max)();
|
|
float fbc=static_cast<float>(1+static_cast<double>(n)/mlf);
|
|
if(bc>fbc)bc =static_cast<size_type>(fbc);
|
|
unchecked_rehash(bc);
|
|
}
|
|
}
|
|
|
|
void unchecked_rehash(size_type n){unchecked_rehash(n,Category());}
|
|
|
|
void unchecked_rehash(size_type n,hashed_unique_tag)
|
|
{
|
|
node_impl_type cpy_end_node;
|
|
node_impl_pointer cpy_end=node_impl_pointer(&cpy_end_node),
|
|
end_=header()->impl();
|
|
bucket_array_type buckets_cpy(get_allocator(),cpy_end,n);
|
|
|
|
if(size()!=0){
|
|
auto_space<
|
|
std::size_t,allocator_type> hashes(get_allocator(),size());
|
|
auto_space<
|
|
node_impl_pointer,allocator_type> node_ptrs(get_allocator(),size());
|
|
std::size_t i=0,size_=size();
|
|
bool within_bucket=false;
|
|
BOOST_TRY{
|
|
for(;i!=size_;++i){
|
|
node_impl_pointer x=end_->prior();
|
|
|
|
/* only this can possibly throw */
|
|
std::size_t h=hash_(key(node_type::from_impl(x)->value()));
|
|
|
|
hashes.data()[i]=h;
|
|
node_ptrs.data()[i]=x;
|
|
within_bucket=!node_alg::unlink_last(end_);
|
|
node_alg::link(x,buckets_cpy.at(buckets_cpy.position(h)),cpy_end);
|
|
}
|
|
}
|
|
BOOST_CATCH(...){
|
|
if(i!=0){
|
|
std::size_t prev_buc=buckets.position(hashes.data()[i-1]);
|
|
if(!within_bucket)prev_buc=~prev_buc;
|
|
|
|
for(std::size_t j=i;j--;){
|
|
std::size_t buc=buckets.position(hashes.data()[j]);
|
|
node_impl_pointer x=node_ptrs.data()[j];
|
|
if(buc==prev_buc)node_alg::append(x,end_);
|
|
else node_alg::link(x,buckets.at(buc),end_);
|
|
prev_buc=buc;
|
|
}
|
|
}
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
end_->prior()=cpy_end->prior()!=cpy_end?cpy_end->prior():end_;
|
|
end_->next()=cpy_end->next();
|
|
end_->prior()->next()->prior()=end_->next()->prior()->prior()=end_;
|
|
buckets.swap(buckets_cpy);
|
|
calculate_max_load();
|
|
}
|
|
|
|
void unchecked_rehash(size_type n,hashed_non_unique_tag)
|
|
{
|
|
node_impl_type cpy_end_node;
|
|
node_impl_pointer cpy_end=node_impl_pointer(&cpy_end_node),
|
|
end_=header()->impl();
|
|
bucket_array_type buckets_cpy(get_allocator(),cpy_end,n);
|
|
|
|
if(size()!=0){
|
|
auto_space<
|
|
std::size_t,allocator_type> hashes(get_allocator(),size());
|
|
auto_space<
|
|
node_impl_pointer,allocator_type> node_ptrs(get_allocator(),size());
|
|
std::size_t i=0;
|
|
bool within_bucket=false;
|
|
BOOST_TRY{
|
|
for(;;++i){
|
|
node_impl_pointer x=end_->prior();
|
|
if(x==end_)break;
|
|
|
|
/* only this can possibly throw */
|
|
std::size_t h=hash_(key(node_type::from_impl(x)->value()));
|
|
|
|
hashes.data()[i]=h;
|
|
node_ptrs.data()[i]=x;
|
|
std::pair<node_impl_pointer,bool> p=
|
|
node_alg::unlink_last_group(end_);
|
|
node_alg::link_range(
|
|
p.first,x,buckets_cpy.at(buckets_cpy.position(h)),cpy_end);
|
|
within_bucket=!(p.second);
|
|
}
|
|
}
|
|
BOOST_CATCH(...){
|
|
if(i!=0){
|
|
std::size_t prev_buc=buckets.position(hashes.data()[i-1]);
|
|
if(!within_bucket)prev_buc=~prev_buc;
|
|
|
|
for(std::size_t j=i;j--;){
|
|
std::size_t buc=buckets.position(hashes.data()[j]);
|
|
node_impl_pointer x=node_ptrs.data()[j],
|
|
y=
|
|
x->prior()->next()!=node_impl_type::base_pointer_from(x)&&
|
|
x->prior()->next()->prior()!=x?
|
|
node_impl_type::pointer_from(x->prior()->next()):x;
|
|
node_alg::unlink_range(y,x);
|
|
if(buc==prev_buc)node_alg::append_range(y,x,end_);
|
|
else node_alg::link_range(y,x,buckets.at(buc),end_);
|
|
prev_buc=buc;
|
|
}
|
|
}
|
|
BOOST_RETHROW;
|
|
}
|
|
BOOST_CATCH_END
|
|
}
|
|
|
|
end_->prior()=cpy_end->prior()!=cpy_end?cpy_end->prior():end_;
|
|
end_->next()=cpy_end->next();
|
|
end_->prior()->next()->prior()=end_->next()->prior()->prior()=end_;
|
|
buckets.swap(buckets_cpy);
|
|
calculate_max_load();
|
|
}
|
|
|
|
bool in_place(node_impl_pointer x,key_param_type k,std::size_t buc)const
|
|
{
|
|
return in_place(x,k,buc,Category());
|
|
}
|
|
|
|
bool in_place(
|
|
node_impl_pointer x,key_param_type k,std::size_t buc,
|
|
hashed_unique_tag)const
|
|
{
|
|
bool found=false;
|
|
for(node_impl_pointer y=buckets.at(buc)->prior();
|
|
y!=node_impl_pointer(0);y=node_alg::after_local(y)){
|
|
if(y==x)found=true;
|
|
else if(eq_(k,key(node_type::from_impl(y)->value())))return false;
|
|
}
|
|
return found;
|
|
}
|
|
|
|
bool in_place(
|
|
node_impl_pointer x,key_param_type k,std::size_t buc,
|
|
hashed_non_unique_tag)const
|
|
{
|
|
bool found=false;
|
|
int range_size=0;
|
|
for(node_impl_pointer y=buckets.at(buc)->prior();y!=node_impl_pointer(0);){
|
|
if(node_alg::is_first_of_group(y)){ /* group of 3 or more */
|
|
if(y==x){
|
|
/* in place <-> equal to some other member of the group */
|
|
return eq_(
|
|
k,
|
|
key(node_type::from_impl(
|
|
node_impl_type::pointer_from(y->next()))->value()));
|
|
}
|
|
else{
|
|
node_impl_pointer z=
|
|
node_alg::after_local(y->next()->prior()); /* end of range */
|
|
if(eq_(k,key(node_type::from_impl(y)->value()))){
|
|
if(found)return false; /* x lies outside */
|
|
do{
|
|
if(y==x)return true;
|
|
y=node_alg::after_local(y);
|
|
}while(y!=z);
|
|
return false; /* x not found */
|
|
}
|
|
else{
|
|
if(range_size==1&&!found)return false;
|
|
if(range_size==2)return found;
|
|
range_size=0;
|
|
y=z; /* skip range (and potentially x, too, which is fine) */
|
|
}
|
|
}
|
|
}
|
|
else{ /* group of 1 or 2 */
|
|
if(y==x){
|
|
if(range_size==1)return true;
|
|
range_size=1;
|
|
found=true;
|
|
}
|
|
else if(eq_(k,key(node_type::from_impl(y)->value()))){
|
|
if(range_size==0&&found)return false;
|
|
if(range_size==1&&!found)return false;
|
|
if(range_size==2)return false;
|
|
++range_size;
|
|
}
|
|
else{
|
|
if(range_size==1&&!found)return false;
|
|
if(range_size==2)return found;
|
|
range_size=0;
|
|
}
|
|
y=node_alg::after_local(y);
|
|
}
|
|
}
|
|
return found;
|
|
}
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
|
|
void detach_iterators(node_type* x)
|
|
{
|
|
iterator it=make_iterator(x);
|
|
safe_mode::detach_equivalent_iterators(it);
|
|
}
|
|
#endif
|
|
|
|
template<BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK>
|
|
std::pair<iterator,bool> emplace_impl(BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK)
|
|
{
|
|
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
|
|
std::pair<final_node_type*,bool>p=
|
|
this->final_emplace_(BOOST_MULTI_INDEX_FORWARD_PARAM_PACK);
|
|
return std::pair<iterator,bool>(make_iterator(p.first),p.second);
|
|
}
|
|
|
|
template<BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK>
|
|
iterator emplace_hint_impl(
|
|
iterator position,BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK)
|
|
{
|
|
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
|
|
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
|
|
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
|
|
std::pair<final_node_type*,bool>p=
|
|
this->final_emplace_hint_(
|
|
static_cast<final_node_type*>(position.get_node()),
|
|
BOOST_MULTI_INDEX_FORWARD_PARAM_PACK);
|
|
return make_iterator(p.first);
|
|
}
|
|
|
|
template<
|
|
typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
iterator find(
|
|
const key_type& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::true_)const
|
|
{
|
|
return find(k,hash,eq,mpl::false_());
|
|
}
|
|
|
|
template<
|
|
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
iterator find(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::false_)const
|
|
{
|
|
std::size_t buc=buckets.position(hash(k));
|
|
for(node_impl_pointer x=buckets.at(buc)->prior();
|
|
x!=node_impl_pointer(0);x=node_alg::next_to_inspect(x)){
|
|
if(eq(k,key(node_type::from_impl(x)->value()))){
|
|
return make_iterator(node_type::from_impl(x));
|
|
}
|
|
}
|
|
return end();
|
|
}
|
|
|
|
template<
|
|
typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
size_type count(
|
|
const key_type& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::true_)const
|
|
{
|
|
return count(k,hash,eq,mpl::false_());
|
|
}
|
|
|
|
template<
|
|
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
size_type count(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::false_)const
|
|
{
|
|
std::size_t buc=buckets.position(hash(k));
|
|
for(node_impl_pointer x=buckets.at(buc)->prior();
|
|
x!=node_impl_pointer(0);x=node_alg::next_to_inspect(x)){
|
|
if(eq(k,key(node_type::from_impl(x)->value()))){
|
|
size_type res=0;
|
|
node_impl_pointer y=end_of_range(x);
|
|
do{
|
|
++res;
|
|
x=node_alg::after(x);
|
|
}while(x!=y);
|
|
return res;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
template<
|
|
typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
std::pair<iterator,iterator> equal_range(
|
|
const key_type& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::true_)const
|
|
{
|
|
return equal_range(k,hash,eq,mpl::false_());
|
|
}
|
|
|
|
template<
|
|
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
|
|
>
|
|
std::pair<iterator,iterator> equal_range(
|
|
const CompatibleKey& k,
|
|
const CompatibleHash& hash,const CompatiblePred& eq,mpl::false_)const
|
|
{
|
|
std::size_t buc=buckets.position(hash(k));
|
|
for(node_impl_pointer x=buckets.at(buc)->prior();
|
|
x!=node_impl_pointer(0);x=node_alg::next_to_inspect(x)){
|
|
if(eq(k,key(node_type::from_impl(x)->value()))){
|
|
return std::pair<iterator,iterator>(
|
|
make_iterator(node_type::from_impl(x)),
|
|
make_iterator(node_type::from_impl(end_of_range(x))));
|
|
}
|
|
}
|
|
return std::pair<iterator,iterator>(end(),end());
|
|
}
|
|
|
|
key_from_value key;
|
|
hasher hash_;
|
|
key_equal eq_;
|
|
bucket_array_type buckets;
|
|
float mlf;
|
|
size_type max_load;
|
|
|
|
#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)&&\
|
|
BOOST_WORKAROUND(__MWERKS__,<=0x3003)
|
|
#pragma parse_mfunc_templ reset
|
|
#endif
|
|
};
|
|
|
|
/* comparison */
|
|
|
|
template<
|
|
typename KeyFromValue,typename Hash,typename Pred,
|
|
typename SuperMeta,typename TagList,typename Category
|
|
>
|
|
bool operator==(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& y)
|
|
{
|
|
return x.equals(y);
|
|
}
|
|
|
|
template<
|
|
typename KeyFromValue,typename Hash,typename Pred,
|
|
typename SuperMeta,typename TagList,typename Category
|
|
>
|
|
bool operator!=(
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& y)
|
|
{
|
|
return !(x==y);
|
|
}
|
|
|
|
/* specialized algorithms */
|
|
|
|
template<
|
|
typename KeyFromValue,typename Hash,typename Pred,
|
|
typename SuperMeta,typename TagList,typename Category
|
|
>
|
|
void swap(
|
|
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
|
|
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& y)
|
|
{
|
|
x.swap(y);
|
|
}
|
|
|
|
} /* namespace multi_index::detail */
|
|
|
|
/* hashed index specifiers */
|
|
|
|
template<typename Arg1,typename Arg2,typename Arg3,typename Arg4>
|
|
struct hashed_unique
|
|
{
|
|
typedef typename detail::hashed_index_args<
|
|
Arg1,Arg2,Arg3,Arg4> index_args;
|
|
typedef typename index_args::tag_list_type::type tag_list_type;
|
|
typedef typename index_args::key_from_value_type key_from_value_type;
|
|
typedef typename index_args::hash_type hash_type;
|
|
typedef typename index_args::pred_type pred_type;
|
|
|
|
template<typename Super>
|
|
struct node_class
|
|
{
|
|
typedef detail::hashed_index_node<Super,detail::hashed_unique_tag> type;
|
|
};
|
|
|
|
template<typename SuperMeta>
|
|
struct index_class
|
|
{
|
|
typedef detail::hashed_index<
|
|
key_from_value_type,hash_type,pred_type,
|
|
SuperMeta,tag_list_type,detail::hashed_unique_tag> type;
|
|
};
|
|
};
|
|
|
|
template<typename Arg1,typename Arg2,typename Arg3,typename Arg4>
|
|
struct hashed_non_unique
|
|
{
|
|
typedef typename detail::hashed_index_args<
|
|
Arg1,Arg2,Arg3,Arg4> index_args;
|
|
typedef typename index_args::tag_list_type::type tag_list_type;
|
|
typedef typename index_args::key_from_value_type key_from_value_type;
|
|
typedef typename index_args::hash_type hash_type;
|
|
typedef typename index_args::pred_type pred_type;
|
|
|
|
template<typename Super>
|
|
struct node_class
|
|
{
|
|
typedef detail::hashed_index_node<
|
|
Super,detail::hashed_non_unique_tag> type;
|
|
};
|
|
|
|
template<typename SuperMeta>
|
|
struct index_class
|
|
{
|
|
typedef detail::hashed_index<
|
|
key_from_value_type,hash_type,pred_type,
|
|
SuperMeta,tag_list_type,detail::hashed_non_unique_tag> type;
|
|
};
|
|
};
|
|
|
|
} /* namespace multi_index */
|
|
|
|
} /* namespace boost */
|
|
|
|
/* Boost.Foreach compatibility */
|
|
|
|
template<
|
|
typename KeyFromValue,typename Hash,typename Pred,
|
|
typename SuperMeta,typename TagList,typename Category
|
|
>
|
|
inline boost::mpl::true_* boost_foreach_is_noncopyable(
|
|
boost::multi_index::detail::hashed_index<
|
|
KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>*&,
|
|
boost_foreach_argument_dependent_lookup_hack)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#undef BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT
|
|
#undef BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF
|
|
|
|
#endif
|