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MySources/boost_graph/boost/multi_index/hashed_index.hpp

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/* Copyright 2003-2020 Joaquin M Lopez Munoz.
* 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/multi_index for library home page.
*/
#ifndef BOOST_MULTI_INDEX_HASHED_INDEX_HPP
#define BOOST_MULTI_INDEX_HASHED_INDEX_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
#include <algorithm>
#include <boost/call_traits.hpp>
#include <boost/core/addressof.hpp>
#include <boost/core/no_exceptions_support.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/foreach_fwd.hpp>
#include <boost/limits.hpp>
#include <boost/move/core.hpp>
#include <boost/move/utility_core.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/push_front.hpp>
#include <boost/multi_index/detail/access_specifier.hpp>
#include <boost/multi_index/detail/adl_swap.hpp>
#include <boost/multi_index/detail/allocator_traits.hpp>
#include <boost/multi_index/detail/auto_space.hpp>
#include <boost/multi_index/detail/bucket_array.hpp>
#include <boost/multi_index/detail/do_not_copy_elements_tag.hpp>
#include <boost/multi_index/detail/hash_index_iterator.hpp>
#include <boost/multi_index/detail/index_node_base.hpp>
#include <boost/multi_index/detail/modify_key_adaptor.hpp>
#include <boost/multi_index/detail/node_handle.hpp>
#include <boost/multi_index/detail/promotes_arg.hpp>
#include <boost/multi_index/detail/safe_mode.hpp>
#include <boost/multi_index/detail/scope_guard.hpp>
#include <boost/multi_index/detail/vartempl_support.hpp>
#include <boost/multi_index/hashed_index_fwd.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/type_traits/is_same.hpp>
#include <cmath>
#include <cstddef>
#include <functional>
#include <iterator>
#include <utility>
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
#include <initializer_list>
#endif
#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
#include <boost/serialization/nvp.hpp>
#endif
#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x) \
detail::scope_guard BOOST_JOIN(check_invariant_,__LINE__)= \
detail::make_obj_guard(x,&hashed_index::check_invariant_); \
BOOST_JOIN(check_invariant_,__LINE__).touch();
#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT \
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(*this)
#else
#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x)
#define BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT
#endif
namespace boost{
namespace multi_index{
namespace detail{
/* hashed_index adds a layer of hashed indexing to a given Super */
/* Most of the implementation of unique and non-unique indices is
* shared. We tell from one another on instantiation time by using
* Category tags defined in hash_index_node.hpp.
*/
template<
typename KeyFromValue,typename Hash,typename Pred,
typename SuperMeta,typename TagList,typename Category
>
class hashed_index:
BOOST_MULTI_INDEX_PROTECTED_IF_MEMBER_TEMPLATE_FRIENDS SuperMeta::type
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
,public safe_mode::safe_container<
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category> >
#endif
{
#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)&&\
BOOST_WORKAROUND(__MWERKS__,<=0x3003)
/* The "ISO C++ Template Parser" option in CW8.3 has a problem with the
* lifetime of const references bound to temporaries --precisely what
* scopeguards are.
*/
#pragma parse_mfunc_templ off
#endif
typedef typename SuperMeta::type super;
protected:
typedef hashed_index_node<
typename super::index_node_type> index_node_type;
private:
typedef typename index_node_type::
template node_alg<Category>::type node_alg;
typedef typename index_node_type::impl_type node_impl_type;
typedef typename node_impl_type::pointer node_impl_pointer;
typedef typename node_impl_type::base_pointer node_impl_base_pointer;
typedef bucket_array<
typename super::final_allocator_type> bucket_array_type;
public:
/* types */
typedef typename KeyFromValue::result_type key_type;
typedef typename index_node_type::value_type value_type;
typedef KeyFromValue key_from_value;
typedef Hash hasher;
typedef Pred key_equal;
typedef typename super::final_allocator_type allocator_type;
private:
typedef allocator_traits<allocator_type> alloc_traits;
public:
typedef typename alloc_traits::pointer pointer;
typedef typename alloc_traits::const_pointer const_pointer;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename alloc_traits::size_type size_type;
typedef typename alloc_traits::difference_type difference_type;
typedef tuple<size_type,
key_from_value,hasher,key_equal> ctor_args;
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
typedef safe_mode::safe_iterator<
hashed_index_iterator<
index_node_type,bucket_array_type,
Category,
hashed_index_global_iterator_tag>,
hashed_index> iterator;
#else
typedef hashed_index_iterator<
index_node_type,bucket_array_type,
Category,hashed_index_global_iterator_tag> iterator;
#endif
typedef iterator const_iterator;
typedef hashed_index_iterator<
index_node_type,bucket_array_type,
Category,hashed_index_local_iterator_tag> local_iterator;
typedef local_iterator const_local_iterator;
typedef typename super::final_node_handle_type node_type;
typedef detail::insert_return_type<
iterator,node_type> insert_return_type;
typedef TagList tag_list;
protected:
typedef typename super::final_node_type final_node_type;
typedef tuples::cons<
ctor_args,
typename super::ctor_args_list> ctor_args_list;
typedef typename mpl::push_front<
typename super::index_type_list,
hashed_index>::type index_type_list;
typedef typename mpl::push_front<
typename super::iterator_type_list,
iterator>::type iterator_type_list;
typedef typename mpl::push_front<
typename super::const_iterator_type_list,
const_iterator>::type const_iterator_type_list;
typedef typename super::copy_map_type copy_map_type;
#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
typedef typename super::index_saver_type index_saver_type;
typedef typename super::index_loader_type index_loader_type;
#endif
private:
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
typedef safe_mode::safe_container<
hashed_index> safe_super;
#endif
typedef typename call_traits<value_type>::param_type value_param_type;
typedef typename call_traits<
key_type>::param_type key_param_type;
/* Needed to avoid commas in BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL
* expansion.
*/
typedef std::pair<iterator,bool> emplace_return_type;
public:
/* construct/destroy/copy
* Default and copy ctors are in the protected section as indices are
* not supposed to be created on their own. No range ctor either.
*/
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& operator=(
const hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
{
this->final()=x.final();
return *this;
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& operator=(
std::initializer_list<value_type> list)
{
this->final()=list;
return *this;
}
#endif
allocator_type get_allocator()const BOOST_NOEXCEPT
{
return this->final().get_allocator();
}
/* size and capacity */
bool empty()const BOOST_NOEXCEPT{return this->final_empty_();}
size_type size()const BOOST_NOEXCEPT{return this->final_size_();}
size_type max_size()const BOOST_NOEXCEPT{return this->final_max_size_();}
/* iterators */
iterator begin()BOOST_NOEXCEPT
{
return make_iterator(
index_node_type::from_impl(header()->next()->prior()));
}
const_iterator begin()const BOOST_NOEXCEPT
{
return make_iterator(
index_node_type::from_impl(header()->next()->prior()));
}
iterator end()BOOST_NOEXCEPT{return make_iterator(header());}
const_iterator end()const BOOST_NOEXCEPT{return make_iterator(header());}
const_iterator cbegin()const BOOST_NOEXCEPT{return begin();}
const_iterator cend()const BOOST_NOEXCEPT{return end();}
iterator iterator_to(const value_type& x)
{
return make_iterator(
node_from_value<index_node_type>(boost::addressof(x)));
}
const_iterator iterator_to(const value_type& x)const
{
return make_iterator(
node_from_value<index_node_type>(boost::addressof(x)));
}
/* modifiers */
BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL(
emplace_return_type,emplace,emplace_impl)
BOOST_MULTI_INDEX_OVERLOADS_TO_VARTEMPL_EXTRA_ARG(
iterator,emplace_hint,emplace_hint_impl,iterator,position)
std::pair<iterator,bool> insert(const value_type& x)
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
std::pair<final_node_type*,bool> p=this->final_insert_(x);
return std::pair<iterator,bool>(make_iterator(p.first),p.second);
}
std::pair<iterator,bool> insert(BOOST_RV_REF(value_type) x)
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
std::pair<final_node_type*,bool> p=this->final_insert_rv_(x);
return std::pair<iterator,bool>(make_iterator(p.first),p.second);
}
iterator insert(iterator position,const value_type& x)
{
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_insert_(
x,static_cast<final_node_type*>(position.get_node()));
return make_iterator(p.first);
}
iterator insert(iterator position,BOOST_RV_REF(value_type) x)
{
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_insert_rv_(
x,static_cast<final_node_type*>(position.get_node()));
return make_iterator(p.first);
}
template<typename InputIterator>
void insert(InputIterator first,InputIterator last)
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
for(;first!=last;++first)this->final_insert_ref_(*first);
}
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
void insert(std::initializer_list<value_type> list)
{
insert(list.begin(),list.end());
}
#endif
insert_return_type insert(BOOST_RV_REF(node_type) nh)
{
if(nh)BOOST_MULTI_INDEX_CHECK_EQUAL_ALLOCATORS(*this,nh);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
std::pair<final_node_type*,bool> p=this->final_insert_nh_(nh);
return insert_return_type(make_iterator(p.first),p.second,boost::move(nh));
}
iterator insert(const_iterator position,BOOST_RV_REF(node_type) nh)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
if(nh)BOOST_MULTI_INDEX_CHECK_EQUAL_ALLOCATORS(*this,nh);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
std::pair<final_node_type*,bool> p=this->final_insert_nh_(
nh,static_cast<final_node_type*>(position.get_node()));
return make_iterator(p.first);
}
node_type extract(const_iterator position)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
return this->final_extract_(
static_cast<final_node_type*>(position.get_node()));
}
node_type extract(key_param_type x)
{
iterator position=find(x);
if(position==end())return node_type();
else return extract(position);
}
iterator erase(iterator position)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
this->final_erase_(static_cast<final_node_type*>(position++.get_node()));
return position;
}
size_type erase(key_param_type k)
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
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(index_node_type::from_impl(x)->value()))){
node_impl_pointer y=end_of_range(x);
size_type s=0;
do{
node_impl_pointer z=node_alg::after(x);
this->final_erase_(
static_cast<final_node_type*>(index_node_type::from_impl(x)));
x=z;
++s;
}while(x!=y);
return s;
}
}
return 0;
}
iterator erase(iterator first,iterator last)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(first);
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(last);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(first,*this);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(last,*this);
BOOST_MULTI_INDEX_CHECK_VALID_RANGE(first,last);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
while(first!=last){
first=erase(first);
}
return first;
}
bool replace(iterator position,const value_type& x)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
return this->final_replace_(
x,static_cast<final_node_type*>(position.get_node()));
}
bool replace(iterator position,BOOST_RV_REF(value_type) x)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
return this->final_replace_rv_(
x,static_cast<final_node_type*>(position.get_node()));
}
template<typename Modifier>
bool modify(iterator position,Modifier mod)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
/* MSVC++ 6.0 optimizer on safe mode code chokes if this
* this is not added. Left it for all compilers as it does no
* harm.
*/
position.detach();
#endif
return this->final_modify_(
mod,static_cast<final_node_type*>(position.get_node()));
}
template<typename Modifier,typename Rollback>
bool modify(iterator position,Modifier mod,Rollback back_)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
/* MSVC++ 6.0 optimizer on safe mode code chokes if this
* this is not added. Left it for all compilers as it does no
* harm.
*/
position.detach();
#endif
return this->final_modify_(
mod,back_,static_cast<final_node_type*>(position.get_node()));
}
template<typename Modifier>
bool modify_key(iterator position,Modifier mod)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
return modify(
position,modify_key_adaptor<Modifier,value_type,KeyFromValue>(mod,key));
}
template<typename Modifier,typename Rollback>
bool modify_key(iterator position,Modifier mod,Rollback back_)
{
BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_DEREFERENCEABLE_ITERATOR(position);
BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
return modify(
position,
modify_key_adaptor<Modifier,value_type,KeyFromValue>(mod,key),
modify_key_adaptor<Rollback,value_type,KeyFromValue>(back_,key));
}
void clear()BOOST_NOEXCEPT
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
this->final_clear_();
}
void swap(hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x)
{
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT;
BOOST_MULTI_INDEX_HASHED_INDEX_CHECK_INVARIANT_OF(x);
this->final_swap_(x.final());
}
/* observers */
key_from_value key_extractor()const{return key;}
hasher hash_function()const{return hash_;}
key_equal key_eq()const{return eq_;}
/* lookup */
/* Internally, these ops rely on const_iterator being the same
* type as iterator.
*/
/* Implementation note: When CompatibleKey is consistently promoted to
* KeyFromValue::result_type for equality comparison, the promotion is made
* once in advance to increase efficiency.
*/
template<typename CompatibleKey>
iterator find(const CompatibleKey& k)const
{
return find(k,hash_,eq_);
}
template<
typename CompatibleKey,typename CompatibleHash,typename CompatiblePred
>
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 static_cast<size_type>(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 static_cast<size_type>(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(index_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<index_node_type>(boost::addressof(x)));
}
const_local_iterator local_iterator_to(const value_type& x)const
{
return make_local_iterator(
node_from_value<index_node_type>(boost::addressof(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=1.0f+static_cast<float>(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<float>(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(index_node_type* node)
{
return iterator(node,this);
}
const_iterator make_iterator(index_node_type* node)const
{
return const_iterator(node,const_cast<hashed_index*>(this));
}
#else
iterator make_iterator(index_node_type* node)
{
return iterator(node);
}
const_iterator make_iterator(index_node_type* node)const
{
return const_iterator(node);
}
#endif
local_iterator make_local_iterator(index_node_type* node)
{
return local_iterator(node);
}
const_local_iterator make_local_iterator(index_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<index_node_type*>(map.find(static_cast<final_node_type*>(
index_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<index_node_type*>(map.find(static_cast<final_node_type*>(
index_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<index_node_type*>(
map.find(static_cast<final_node_type*>(
index_node_type::from_impl(
node_impl_type::pointer_from(org->next())))))->impl());
}
if(next_org->prior()!=org){
next_cpy->prior()=
static_cast<index_node_type*>(
map.find(static_cast<final_node_type*>(
index_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*>(
index_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<index_node_type*>(x),pos);
return res;
}
template<typename Variant>
final_node_type* insert_(
value_param_type v,index_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*>(
index_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<index_node_type*>(x),pos);
return res;
}
void extract_(index_node_type* x)
{
unlink(x);
super::extract_(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*>(index_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*>(index_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
}
template<typename BoolConstant>
void swap_(
hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>& x,
BoolConstant swap_allocators)
{
adl_swap(key,x.key);
adl_swap(hash_,x.hash_);
adl_swap(eq_,x.eq_);
buckets.swap(x.buckets,swap_allocators);
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,swap_allocators);
}
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,index_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_(index_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(...){
extract_(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::extract_(x);
#if defined(BOOST_MULTI_INDEX_ENABLE_SAFE_MODE)
detach_iterators(x);
#endif
return false;
}
link(x,pos);
}
BOOST_CATCH(...){
super::extract_(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_(index_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
}
bool check_rollback_(index_node_type* x)const
{
std::size_t buc=find_bucket(x->value());
return in_place(x->impl(),key(x->value()),buc)&&super::check_rollback_(x);
}
/* 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(
index_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;
difference_type 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:
index_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(index_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(index_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(index_node_type::from_impl(x)->value()),
key(index_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(index_node_type::from_impl(x)->value()),
key(index_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(index_node_type* x,const link_info& pos)
{
link(x,pos,Category());
}
void link(index_node_type* x,node_impl_base_pointer pos,hashed_unique_tag)
{
node_alg::link(x->impl(),pos,header()->impl());
}
void link(
index_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(index_node_type* x)
{
node_alg::unlink(x->impl());
}
typedef typename node_alg::unlink_undo unlink_undo;
void unlink(index_node_type* x,unlink_undo& undo)
{
node_alg::unlink(x->impl(),undo);
}
void calculate_max_load()
{
float fml=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=1.0f+static_cast<float>(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(index_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(index_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(index_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(index_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(index_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(index_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(index_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(index_node_type::from_impl(x)->value()))){
return make_iterator(index_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(index_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(index_node_type::from_impl(x)->value()))){
return std::pair<iterator,iterator>(
make_iterator(index_node_type::from_impl(x)),
make_iterator(index_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> 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> 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
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