Added precompiled boost libraries - NOT TESTED YET!

This commit is contained in:
pelya
2011-06-03 18:10:59 +03:00
parent 935f1fc4a3
commit a627238bf8
7542 changed files with 1307914 additions and 2 deletions
@@ -0,0 +1,111 @@
// Copyright 2005-2009 Daniel James.
// 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)
// A couple of templates to make using allocators easier.
#ifndef BOOST_UNORDERED_DETAIL_ALLOCATOR_UTILITIES_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_ALLOCATOR_UTILITIES_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/config.hpp>
#if (defined(BOOST_NO_STD_ALLOCATOR) || defined(BOOST_DINKUMWARE_STDLIB)) \
&& !defined(__BORLANDC__)
# define BOOST_UNORDERED_USE_ALLOCATOR_UTILITIES
#endif
#if defined(BOOST_UNORDERED_USE_ALLOCATOR_UTILITIES)
# include <boost/detail/allocator_utilities.hpp>
#endif
namespace boost { namespace unordered_detail {
// rebind_wrap
//
// Rebind allocators. For some problematic libraries, use rebind_to
// from <boost/detail/allocator_utilities.hpp>.
#if defined(BOOST_UNORDERED_USE_ALLOCATOR_UTILITIES)
template <class Alloc, class T>
struct rebind_wrap : ::boost::detail::allocator::rebind_to<Alloc, T> {};
#else
template <class Alloc, class T>
struct rebind_wrap
{
typedef BOOST_DEDUCED_TYPENAME
Alloc::BOOST_NESTED_TEMPLATE rebind<T>::other
type;
};
#endif
// allocator_array_constructor
//
// Allocate and construct an array in an exception safe manner, and
// clean up if an exception is thrown before the container takes charge
// of it.
template <class Allocator>
struct allocator_array_constructor
{
typedef BOOST_DEDUCED_TYPENAME Allocator::pointer pointer;
Allocator& alloc_;
pointer ptr_;
pointer constructed_;
std::size_t length_;
allocator_array_constructor(Allocator& a)
: alloc_(a), ptr_(), constructed_(), length_(0)
{
constructed_ = pointer();
ptr_ = pointer();
}
~allocator_array_constructor() {
if (ptr_) {
for(pointer p = ptr_; p != constructed_; ++p)
alloc_.destroy(p);
alloc_.deallocate(ptr_, length_);
}
}
template <class V>
void construct(V const& v, std::size_t l)
{
BOOST_ASSERT(!ptr_);
length_ = l;
ptr_ = alloc_.allocate(length_);
pointer end = ptr_ + static_cast<std::ptrdiff_t>(length_);
for(constructed_ = ptr_; constructed_ != end; ++constructed_)
alloc_.construct(constructed_, v);
}
pointer get() const
{
return ptr_;
}
pointer release()
{
pointer p(ptr_);
ptr_ = pointer();
return p;
}
private:
allocator_array_constructor(allocator_array_constructor const&);
allocator_array_constructor& operator=(
allocator_array_constructor const&);
};
}}
#if defined(BOOST_UNORDERED_USE_ALLOCATOR_UTILITIES)
# undef BOOST_UNORDERED_USE_ALLOCATOR_UTILITIES
#endif
#endif
@@ -0,0 +1,183 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_MANAGER_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_MANAGER_HPP_INCLUDED
#include <boost/config.hpp>
#include <boost/assert.hpp>
#include <boost/unordered/detail/node.hpp>
#include <boost/unordered/detail/util.hpp>
namespace boost { namespace unordered_detail {
////////////////////////////////////////////////////////////////////////////
// Buckets
template <class A, class G>
inline std::size_t hash_buckets<A, G>::max_bucket_count() const {
// -1 to account for the sentinel.
return prev_prime(this->bucket_alloc().max_size() - 1);
}
template <class A, class G>
inline BOOST_DEDUCED_TYPENAME hash_buckets<A, G>::bucket_ptr
hash_buckets<A, G>::get_bucket(std::size_t num) const
{
return buckets_ + static_cast<std::ptrdiff_t>(num);
}
template <class A, class G>
inline BOOST_DEDUCED_TYPENAME hash_buckets<A, G>::bucket_ptr
hash_buckets<A, G>::bucket_ptr_from_hash(std::size_t hashed) const
{
return get_bucket(hashed % bucket_count_);
}
template <class A, class G>
std::size_t hash_buckets<A, G>::bucket_size(std::size_t index) const
{
if(!buckets_) return 0;
bucket_ptr ptr = get_bucket(index)->next_;
std::size_t count = 0;
while(ptr) {
++count;
ptr = ptr->next_;
}
return count;
}
template <class A, class G>
inline BOOST_DEDUCED_TYPENAME hash_buckets<A, G>::node_ptr
hash_buckets<A, G>::bucket_begin(std::size_t num) const
{
return buckets_ ? get_bucket(num)->next_ : node_ptr();
}
////////////////////////////////////////////////////////////////////////////
// Delete
template <class A, class G>
inline void hash_buckets<A, G>::delete_node(node_ptr b)
{
node* raw_ptr = static_cast<node*>(&*b);
boost::unordered_detail::destroy(&raw_ptr->value());
real_node_ptr n(node_alloc().address(*raw_ptr));
node_alloc().destroy(n);
node_alloc().deallocate(n, 1);
}
template <class A, class G>
inline void hash_buckets<A, G>::clear_bucket(bucket_ptr b)
{
node_ptr node_it = b->next_;
b->next_ = node_ptr();
while(node_it) {
node_ptr node_to_delete = node_it;
node_it = node_it->next_;
delete_node(node_to_delete);
}
}
template <class A, class G>
inline void hash_buckets<A, G>::delete_buckets()
{
bucket_ptr end = this->get_bucket(this->bucket_count_);
for(bucket_ptr begin = this->buckets_; begin != end; ++begin) {
clear_bucket(begin);
}
// Destroy the buckets (including the sentinel bucket).
++end;
for(bucket_ptr begin = this->buckets_; begin != end; ++begin) {
bucket_alloc().destroy(begin);
}
bucket_alloc().deallocate(this->buckets_, this->bucket_count_ + 1);
this->buckets_ = bucket_ptr();
}
template <class A, class G>
inline std::size_t hash_buckets<A, G>::delete_nodes(
node_ptr begin, node_ptr end)
{
std::size_t count = 0;
while(begin != end) {
node_ptr n = begin;
begin = begin->next_;
delete_node(n);
++count;
}
return count;
}
////////////////////////////////////////////////////////////////////////////
// Constructors and Destructors
template <class A, class G>
inline hash_buckets<A, G>::hash_buckets(
node_allocator const& a, std::size_t bucket_count)
: buckets_(),
bucket_count_(bucket_count),
allocators_(a,a)
{
}
template <class A, class G>
inline hash_buckets<A, G>::~hash_buckets()
{
if(this->buckets_) { this->delete_buckets(); }
}
template <class A, class G>
inline void hash_buckets<A, G>::create_buckets()
{
// The array constructor will clean up in the event of an
// exception.
allocator_array_constructor<bucket_allocator>
constructor(bucket_alloc());
// Creates an extra bucket to act as a sentinel.
constructor.construct(bucket(), this->bucket_count_ + 1);
// Set up the sentinel (node_ptr cast)
bucket_ptr sentinel = constructor.get() +
static_cast<std::ptrdiff_t>(this->bucket_count_);
sentinel->next_ = sentinel;
// Only release the buckets once everything is successfully
// done.
this->buckets_ = constructor.release();
}
////////////////////////////////////////////////////////////////////////////
// Constructors and Destructors
// no throw
template <class A, class G>
inline void hash_buckets<A, G>::move(hash_buckets& other)
{
BOOST_ASSERT(node_alloc() == other.node_alloc());
if(this->buckets_) { this->delete_buckets(); }
this->buckets_ = other.buckets_;
this->bucket_count_ = other.bucket_count_;
other.buckets_ = bucket_ptr();
other.bucket_count_ = 0;
}
template <class A, class G>
inline void hash_buckets<A, G>::swap(hash_buckets<A, G>& other)
{
BOOST_ASSERT(node_alloc() == other.node_alloc());
std::swap(buckets_, other.buckets_);
std::swap(bucket_count_, other.bucket_count_);
}
}}
#endif
@@ -0,0 +1,304 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_EQUIVALENT_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_EQUIVALENT_HPP_INCLUDED
#include <boost/unordered/detail/table.hpp>
#include <boost/unordered/detail/extract_key.hpp>
namespace boost { namespace unordered_detail {
template <class T>
class hash_equivalent_table : public T::table
{
public:
typedef BOOST_DEDUCED_TYPENAME T::hasher hasher;
typedef BOOST_DEDUCED_TYPENAME T::key_equal key_equal;
typedef BOOST_DEDUCED_TYPENAME T::value_allocator value_allocator;
typedef BOOST_DEDUCED_TYPENAME T::key_type key_type;
typedef BOOST_DEDUCED_TYPENAME T::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME T::table table;
typedef BOOST_DEDUCED_TYPENAME T::node_constructor node_constructor;
typedef BOOST_DEDUCED_TYPENAME T::node node;
typedef BOOST_DEDUCED_TYPENAME T::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME T::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME T::iterator_base iterator_base;
typedef BOOST_DEDUCED_TYPENAME T::extractor extractor;
// Constructors
hash_equivalent_table(std::size_t n,
hasher const& hf, key_equal const& eq, value_allocator const& a)
: table(n, hf, eq, a) {}
hash_equivalent_table(hash_equivalent_table const& x)
: table(x, x.node_alloc()) {}
hash_equivalent_table(hash_equivalent_table const& x,
value_allocator const& a)
: table(x, a) {}
hash_equivalent_table(hash_equivalent_table& x, move_tag m)
: table(x, m) {}
hash_equivalent_table(hash_equivalent_table& x,
value_allocator const& a, move_tag m)
: table(x, a, m) {}
~hash_equivalent_table() {}
// Insert methods
iterator_base emplace_impl(node_constructor& a);
void emplace_impl_no_rehash(node_constructor& a);
// equals
bool equals(hash_equivalent_table const&) const;
inline node_ptr add_node(node_constructor& a,
bucket_ptr bucket, node_ptr pos);
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class... Args>
iterator_base emplace(Args&&... args);
#else
#define BOOST_UNORDERED_INSERT_IMPL(z, n, _) \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, n)> \
iterator_base emplace(BOOST_UNORDERED_FUNCTION_PARAMS(z, n));
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_INSERT_IMPL, _)
#undef BOOST_UNORDERED_INSERT_IMPL
#endif
template <class I>
void insert_for_range(I i, I j, forward_traversal_tag);
template <class I>
void insert_for_range(I i, I j, boost::incrementable_traversal_tag);
template <class I>
void insert_range(I i, I j);
};
template <class H, class P, class A>
struct multiset : public types<
BOOST_DEDUCED_TYPENAME A::value_type,
BOOST_DEDUCED_TYPENAME A::value_type,
H, P, A,
set_extractor<BOOST_DEDUCED_TYPENAME A::value_type>,
grouped>
{
typedef hash_equivalent_table<multiset<H, P, A> > impl;
typedef hash_table<multiset<H, P, A> > table;
};
template <class K, class H, class P, class A>
struct multimap : public types<
K, BOOST_DEDUCED_TYPENAME A::value_type,
H, P, A,
map_extractor<K, BOOST_DEDUCED_TYPENAME A::value_type>,
grouped>
{
typedef hash_equivalent_table<multimap<K, H, P, A> > impl;
typedef hash_table<multimap<K, H, P, A> > table;
};
////////////////////////////////////////////////////////////////////////////
// Equality
template <class T>
bool hash_equivalent_table<T>
::equals(hash_equivalent_table<T> const& other) const
{
if(this->size_ != other.size_) return false;
if(!this->size_) return true;
bucket_ptr end = this->get_bucket(this->bucket_count_);
for(bucket_ptr i = this->cached_begin_bucket_; i != end; ++i)
{
node_ptr it1 = i->next_;
while(BOOST_UNORDERED_BORLAND_BOOL(it1))
{
node_ptr it2 = other.find_iterator(this->get_key_from_ptr(it1));
if(!BOOST_UNORDERED_BORLAND_BOOL(it2)) return false;
node_ptr end1 = node::next_group(it1);
node_ptr end2 = node::next_group(it2);
do {
if(!extractor::compare_mapped(
node::get_value(it1), node::get_value(it2)))
return false;
it1 = it1->next_;
it2 = it2->next_;
} while(it1 != end1 && it2 != end2);
if(it1 != end1 || it2 != end2) return false;
}
}
return true;
}
////////////////////////////////////////////////////////////////////////////
// A convenience method for adding nodes.
template <class T>
inline BOOST_DEDUCED_TYPENAME hash_equivalent_table<T>::node_ptr
hash_equivalent_table<T>
::add_node(node_constructor& a, bucket_ptr bucket, node_ptr pos)
{
node_ptr n = a.release();
if(BOOST_UNORDERED_BORLAND_BOOL(pos)) {
node::add_after_node(n, pos);
}
else {
node::add_to_bucket(n, *bucket);
if(bucket < this->cached_begin_bucket_)
this->cached_begin_bucket_ = bucket;
}
++this->size_;
return n;
}
////////////////////////////////////////////////////////////////////////////
// Insert methods
template <class T>
inline BOOST_DEDUCED_TYPENAME
hash_equivalent_table<T>::iterator_base
hash_equivalent_table<T>::emplace_impl(node_constructor& a)
{
key_type const& k = this->get_key(a.value());
std::size_t hash_value = this->hash_function()(k);
if(!this->size_) {
return this->emplace_empty_impl_with_node(a, 1);
}
else {
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
node_ptr position = this->find_iterator(bucket, k);
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
if(this->reserve_for_insert(this->size_ + 1))
bucket = this->bucket_ptr_from_hash(hash_value);
return iterator_base(bucket, add_node(a, bucket, position));
}
}
template <class T>
inline void hash_equivalent_table<T>
::emplace_impl_no_rehash(node_constructor& a)
{
key_type const& k = this->get_key(a.value());
bucket_ptr bucket = this->get_bucket(this->bucket_index(k));
add_node(a, bucket, this->find_iterator(bucket, k));
}
#if defined(BOOST_UNORDERED_STD_FORWARD)
// Emplace (equivalent key containers)
// (I'm using an overloaded emplace for both 'insert' and 'emplace')
// if hash function throws, basic exception safety
// strong otherwise
template <class T>
template <class... Args>
BOOST_DEDUCED_TYPENAME hash_equivalent_table<T>::iterator_base
hash_equivalent_table<T>
::emplace(Args&&... args)
{
// Create the node before rehashing in case it throws an
// exception (need strong safety in such a case).
node_constructor a(*this);
a.construct(std::forward<Args>(args)...);
return emplace_impl(a);
}
#else
#define BOOST_UNORDERED_INSERT_IMPL(z, num_params, _) \
template <class T> \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params)> \
BOOST_DEDUCED_TYPENAME hash_equivalent_table<T>::iterator_base \
hash_equivalent_table<T> \
::emplace(BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
node_constructor a(*this); \
a.construct(BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
return emplace_impl(a); \
}
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_INSERT_IMPL, _)
#undef BOOST_UNORDERED_INSERT_IMPL
#endif
////////////////////////////////////////////////////////////////////////////
// Insert range methods
// if hash function throws, or inserting > 1 element, basic exception safety
// strong otherwise
template <class T>
template <class I>
inline void hash_equivalent_table<T>
::insert_for_range(I i, I j, forward_traversal_tag)
{
if(i == j) return;
std::size_t distance = unordered_detail::distance(i, j);
if(distance == 1) {
emplace(*i);
}
else {
node_constructor a(*this);
// Only require basic exception safety here
if(this->size_) {
this->reserve_for_insert(this->size_ + distance);
}
else {
a.construct(*i++);
this->emplace_empty_impl_with_node(a, distance);
}
for (; i != j; ++i) {
a.construct(*i);
emplace_impl_no_rehash(a);
}
}
}
// if hash function throws, or inserting > 1 element, basic exception safety
// strong otherwise
template <class T>
template <class I>
inline void hash_equivalent_table<T>
::insert_for_range(I i, I j, boost::incrementable_traversal_tag)
{
node_constructor a(*this);
for (; i != j; ++i) {
a.construct(*i);
emplace_impl(a);
}
}
// if hash function throws, or inserting > 1 element, basic exception safety
// strong otherwise
template <class T>
template <class I>
void hash_equivalent_table<T>::insert_range(I i, I j)
{
BOOST_DEDUCED_TYPENAME boost::iterator_traversal<I>::type
iterator_traversal_tag;
insert_for_range(i, j, iterator_traversal_tag);
}
}}
#endif
@@ -0,0 +1,148 @@
// Copyright (C) 2005-2009 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_EXTRACT_KEY_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_EXTRACT_KEY_HPP_INCLUDED
#include <boost/config.hpp>
#include <boost/type_traits/remove_const.hpp>
#include <boost/unordered/detail/fwd.hpp>
namespace boost {
namespace unordered_detail {
// key extractors
//
// no throw
//
// 'extract_key' is called with the emplace parameters to return a
// key if available or 'no_key' is one isn't and will need to be
// constructed. This could be done by overloading the emplace implementation
// for the different cases, but that's a bit tricky on compilers without
// variadic templates.
struct no_key {
no_key() {}
template <class T> no_key(T const&) {}
};
template <class ValueType>
struct set_extractor
{
typedef ValueType value_type;
typedef ValueType key_type;
static key_type const& extract(key_type const& v)
{
return v;
}
static no_key extract()
{
return no_key();
}
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class... Args>
static no_key extract(Args const&...)
{
return no_key();
}
#else
template <class Arg>
static no_key extract(Arg const&)
{
return no_key();
}
template <class Arg>
static no_key extract(Arg const&, Arg const&)
{
return no_key();
}
#endif
static bool compare_mapped(value_type const&, value_type const&)
{
return true;
}
};
template <class Key, class ValueType>
struct map_extractor
{
typedef ValueType value_type;
typedef BOOST_DEDUCED_TYPENAME boost::remove_const<Key>::type key_type;
static key_type const& extract(value_type const& v)
{
return v.first;
}
static key_type const& extract(key_type const& v)
{
return v;
}
template <class Second>
static key_type const& extract(std::pair<key_type, Second> const& v)
{
return v.first;
}
template <class Second>
static key_type const& extract(
std::pair<key_type const, Second> const& v)
{
return v.first;
}
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class Arg1, class... Args>
static key_type const& extract(key_type const& k,
Arg1 const&, Args const&...)
{
return k;
}
template <class... Args>
static no_key extract(Args const&...)
{
return no_key();
}
#else
template <class Arg1>
static key_type const& extract(key_type const& k, Arg1 const&)
{
return k;
}
static no_key extract()
{
return no_key();
}
template <class Arg>
static no_key extract(Arg const&)
{
return no_key();
}
template <class Arg, class Arg1>
static no_key extract(Arg const&, Arg1 const&)
{
return no_key();
}
#endif
static bool compare_mapped(value_type const& x, value_type const& y)
{
return x.second == y.second;
}
};
}}
#endif
@@ -0,0 +1,856 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
// This contains the basic data structure, apart from the actual values. There's
// no construction or deconstruction here. So this only depends on the pointer
// type.
#ifndef BOOST_UNORDERED_DETAIL_FWD_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_FWD_HPP_INCLUDED
#include <boost/config.hpp>
#include <boost/iterator.hpp>
#include <boost/compressed_pair.hpp>
#include <boost/type_traits/aligned_storage.hpp>
#include <boost/type_traits/alignment_of.hpp>
#include <boost/unordered/detail/allocator_helpers.hpp>
#include <algorithm>
// This header defines most of the classes used to implement the unordered
// containers. It doesn't include the insert methods as they require a lot
// of preprocessor metaprogramming - they are in insert.hpp
// Template parameters:
//
// H = Hash Function
// P = Predicate
// A = Value Allocator
// G = Grouped/Ungrouped
// E = Key Extractor
#if !defined(BOOST_NO_RVALUE_REFERENCES) && !defined(BOOST_NO_VARIADIC_TEMPLATES)
# if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
// STLport doesn't have std::forward.
# else
# define BOOST_UNORDERED_STD_FORWARD
# endif
#endif
#if !defined(BOOST_UNORDERED_EMPLACE_LIMIT)
#define BOOST_UNORDERED_EMPLACE_LIMIT 10
#endif
#if !defined(BOOST_UNORDERED_STD_FORWARD)
#include <boost/preprocessor/repetition/enum_params.hpp>
#include <boost/preprocessor/repetition/enum_binary_params.hpp>
#include <boost/preprocessor/repetition/repeat_from_to.hpp>
#define BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params) \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, class Arg)
#define BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params) \
BOOST_PP_ENUM_BINARY_PARAMS_Z(z, num_params, Arg, const& arg)
#define BOOST_UNORDERED_CALL_PARAMS(z, num_params) \
BOOST_PP_ENUM_PARAMS_Z(z, num_params, arg)
#endif
namespace boost { namespace unordered_detail {
static const float minimum_max_load_factor = 1e-3f;
static const std::size_t default_bucket_count = 11;
struct move_tag {};
template <class T> class hash_unique_table;
template <class T> class hash_equivalent_table;
template <class Alloc, class Grouped>
class hash_node_constructor;
template <class ValueType>
struct set_extractor;
template <class Key, class ValueType>
struct map_extractor;
struct no_key;
// Explicitly call a destructor
#if defined(BOOST_MSVC)
#pragma warning(push)
#pragma warning(disable:4100) // unreferenced formal parameter
#endif
template <class T>
inline void destroy(T* x) {
x->~T();
}
#if defined(BOOST_MSVC)
#pragma warning(pop)
#endif
// hash_bucket
template <class A>
class hash_bucket
{
hash_bucket& operator=(hash_bucket const&);
public:
typedef hash_bucket<A> bucket;
typedef BOOST_DEDUCED_TYPENAME
boost::unordered_detail::rebind_wrap<A, bucket>::type
bucket_allocator;
typedef BOOST_DEDUCED_TYPENAME bucket_allocator::pointer bucket_ptr;
typedef bucket_ptr node_ptr;
node_ptr next_;
hash_bucket() : next_() {}
};
template <class A>
struct ungrouped_node_base : hash_bucket<A> {
typedef hash_bucket<A> bucket;
typedef BOOST_DEDUCED_TYPENAME bucket::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME bucket::node_ptr node_ptr;
ungrouped_node_base() : bucket() {}
static inline node_ptr& next_group(node_ptr ptr);
static inline std::size_t group_count(node_ptr ptr);
static inline void add_to_bucket(node_ptr n, bucket& b);
static inline void add_after_node(node_ptr n, node_ptr position);
static void unlink_node(bucket& b, node_ptr n);
static void unlink_nodes(bucket& b, node_ptr begin, node_ptr end);
static void unlink_nodes(bucket& b, node_ptr end);
};
template <class A>
struct grouped_node_base : hash_bucket<A>
{
typedef hash_bucket<A> bucket;
typedef BOOST_DEDUCED_TYPENAME bucket::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME bucket::node_ptr node_ptr;
node_ptr group_prev_;
grouped_node_base() : bucket(), group_prev_() {}
static inline node_ptr& next_group(node_ptr ptr);
static inline node_ptr first_in_group(node_ptr n);
static inline std::size_t group_count(node_ptr ptr);
static inline void add_to_bucket(node_ptr n, bucket& b);
static inline void add_after_node(node_ptr n, node_ptr position);
static void unlink_node(bucket& b, node_ptr n);
static void unlink_nodes(bucket& b, node_ptr begin, node_ptr end);
static void unlink_nodes(bucket& b, node_ptr end);
private:
static inline node_ptr split_group(node_ptr split);
static inline grouped_node_base& get(node_ptr ptr) {
return static_cast<grouped_node_base&>(*ptr);
}
};
struct ungrouped
{
template <class A>
struct base {
typedef ungrouped_node_base<A> type;
};
};
struct grouped
{
template <class A>
struct base {
typedef grouped_node_base<A> type;
};
};
template <class ValueType>
struct value_base
{
typedef ValueType value_type;
BOOST_DEDUCED_TYPENAME boost::aligned_storage<
sizeof(value_type),
::boost::alignment_of<value_type>::value>::type data_;
void* address() {
return this;
}
value_type& value() {
return *(ValueType*) this;
}
private:
value_base& operator=(value_base const&);
};
// Node
template <class A, class G>
class hash_node :
public G::BOOST_NESTED_TEMPLATE base<A>::type,
public value_base<BOOST_DEDUCED_TYPENAME A::value_type>
{
public:
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME hash_bucket<A>::node_ptr node_ptr;
static value_type& get_value(node_ptr p) {
return static_cast<hash_node&>(*p).value();
}
private:
hash_node& operator=(hash_node const&);
};
// Iterator Base
template <class A, class G>
class hash_iterator_base
{
public:
typedef A value_allocator;
typedef hash_bucket<A> bucket;
typedef hash_node<A, G> node;
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME bucket::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME bucket::node_ptr node_ptr;
bucket_ptr bucket_;
node_ptr node_;
hash_iterator_base() : bucket_(), node_() {}
explicit hash_iterator_base(bucket_ptr b)
: bucket_(b),
node_(b ? b->next_ : node_ptr()) {}
hash_iterator_base(bucket_ptr b, node_ptr n)
: bucket_(b),
node_(n) {}
bool operator==(hash_iterator_base const& x) const {
return node_ == x.node_; }
bool operator!=(hash_iterator_base const& x) const {
return node_ != x.node_; }
value_type& operator*() const {
return node::get_value(node_);
}
void increment_bucket(node_ptr n) {
while(!n) {
++bucket_;
n = bucket_->next_;
}
node_ = bucket_ == n ? node_ptr() : n;
}
void increment() {
increment_bucket(node_->next_);
}
};
// hash_buckets
//
// This is responsible for allocating and deallocating buckets and nodes.
//
// Notes:
// 1. For the sake exception safety the allocators themselves don't allocate
// anything.
// 2. It's the callers responsibility to allocate the buckets before calling
// any of the methods (other than getters and setters).
template <class A, class G>
class hash_buckets
{
hash_buckets(hash_buckets const&);
hash_buckets& operator=(hash_buckets const&);
public:
// Types
typedef A value_allocator;
typedef hash_bucket<A> bucket;
typedef hash_iterator_base<A, G> iterator_base;
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME iterator_base::node node;
typedef BOOST_DEDUCED_TYPENAME bucket::bucket_allocator
bucket_allocator;
typedef BOOST_DEDUCED_TYPENAME bucket::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME bucket::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME rebind_wrap<value_allocator, node>::type
node_allocator;
typedef BOOST_DEDUCED_TYPENAME node_allocator::pointer real_node_ptr;
// Members
bucket_ptr buckets_;
std::size_t bucket_count_;
boost::compressed_pair<bucket_allocator, node_allocator> allocators_;
// Data access
bucket_allocator const& bucket_alloc() const {
return allocators_.first(); }
node_allocator const& node_alloc() const {
return allocators_.second(); }
bucket_allocator& bucket_alloc() {
return allocators_.first(); }
node_allocator& node_alloc() {
return allocators_.second(); }
std::size_t max_bucket_count() const;
// Constructors
hash_buckets(node_allocator const& a, std::size_t n);
void create_buckets();
~hash_buckets();
// no throw
void swap(hash_buckets& other);
void move(hash_buckets& other);
// For the remaining functions, buckets_ must not be null.
bucket_ptr get_bucket(std::size_t n) const;
bucket_ptr bucket_ptr_from_hash(std::size_t hashed) const;
std::size_t bucket_size(std::size_t index) const;
node_ptr bucket_begin(std::size_t n) const;
// Alloc/Dealloc
void delete_node(node_ptr);
//
void delete_buckets();
void clear_bucket(bucket_ptr);
std::size_t delete_nodes(node_ptr begin, node_ptr end);
std::size_t delete_to_bucket_end(node_ptr begin);
};
template <class H, class P> class set_hash_functions;
template <class H, class P>
class hash_buffered_functions
{
friend class set_hash_functions<H, P>;
hash_buffered_functions& operator=(hash_buffered_functions const&);
typedef boost::compressed_pair<H, P> function_pair;
typedef BOOST_DEDUCED_TYPENAME boost::aligned_storage<
sizeof(function_pair),
::boost::alignment_of<function_pair>::value>::type aligned_function;
bool current_; // The currently active functions.
aligned_function funcs_[2];
function_pair const& current() const {
return *static_cast<function_pair const*>(
static_cast<void const*>(&funcs_[current_]));
}
void construct(bool which, H const& hf, P const& eq)
{
new((void*) &funcs_[which]) function_pair(hf, eq);
}
void construct(bool which, function_pair const& f)
{
new((void*) &funcs_[which]) function_pair(f);
}
void destroy(bool which)
{
boost::unordered_detail::destroy((function_pair*)(&funcs_[which]));
}
public:
hash_buffered_functions(H const& hf, P const& eq)
: current_(false)
{
construct(current_, hf, eq);
}
hash_buffered_functions(hash_buffered_functions const& bf)
: current_(false)
{
construct(current_, bf.current());
}
~hash_buffered_functions() {
destroy(current_);
}
H const& hash_function() const {
return current().first();
}
P const& key_eq() const {
return current().second();
}
};
template <class H, class P>
class set_hash_functions
{
set_hash_functions(set_hash_functions const&);
set_hash_functions& operator=(set_hash_functions const&);
typedef hash_buffered_functions<H, P> buffered_functions;
buffered_functions& buffered_functions_;
bool tmp_functions_;
public:
set_hash_functions(buffered_functions& f, H const& h, P const& p)
: buffered_functions_(f),
tmp_functions_(!f.current_)
{
f.construct(tmp_functions_, h, p);
}
set_hash_functions(buffered_functions& f,
buffered_functions const& other)
: buffered_functions_(f),
tmp_functions_(!f.current_)
{
f.construct(tmp_functions_, other.current());
}
~set_hash_functions()
{
buffered_functions_.destroy(tmp_functions_);
}
void commit()
{
buffered_functions_.current_ = tmp_functions_;
tmp_functions_ = !tmp_functions_;
}
};
template <class T>
class hash_table : public T::buckets, public T::buffered_functions
{
hash_table(hash_table const&);
public:
typedef BOOST_DEDUCED_TYPENAME T::hasher hasher;
typedef BOOST_DEDUCED_TYPENAME T::key_equal key_equal;
typedef BOOST_DEDUCED_TYPENAME T::value_allocator value_allocator;
typedef BOOST_DEDUCED_TYPENAME T::key_type key_type;
typedef BOOST_DEDUCED_TYPENAME T::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME T::buffered_functions base;
typedef BOOST_DEDUCED_TYPENAME T::buckets buckets;
typedef BOOST_DEDUCED_TYPENAME T::extractor extractor;
typedef BOOST_DEDUCED_TYPENAME T::node_constructor node_constructor;
typedef BOOST_DEDUCED_TYPENAME T::node node;
typedef BOOST_DEDUCED_TYPENAME T::bucket bucket;
typedef BOOST_DEDUCED_TYPENAME T::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME T::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME T::iterator_base iterator_base;
typedef BOOST_DEDUCED_TYPENAME T::node_allocator node_allocator;
typedef BOOST_DEDUCED_TYPENAME T::iterator_pair iterator_pair;
// Members
std::size_t size_;
float mlf_;
// Cached data - invalid if !this->buckets_
bucket_ptr cached_begin_bucket_;
std::size_t max_load_;
// Helper methods
key_type const& get_key(value_type const& v) const {
return extractor::extract(v);
}
key_type const& get_key_from_ptr(node_ptr n) const {
return extractor::extract(node::get_value(n));
}
bool equal(key_type const& k, value_type const& v) const;
template <class Key, class Pred>
node_ptr find_iterator(bucket_ptr bucket, Key const& k,
Pred const&) const;
node_ptr find_iterator(bucket_ptr bucket, key_type const& k) const;
node_ptr find_iterator(key_type const& k) const;
node_ptr* find_for_erase(bucket_ptr bucket, key_type const& k) const;
// Load methods
std::size_t max_size() const;
std::size_t bucket_index(key_type const& k) const;
void max_load_factor(float z);
std::size_t min_buckets_for_size(std::size_t n) const;
std::size_t calculate_max_load();
// Constructors
hash_table(std::size_t n, hasher const& hf, key_equal const& eq,
node_allocator const& a);
hash_table(hash_table const& x, node_allocator const& a);
hash_table(hash_table& x, move_tag m);
hash_table(hash_table& x, node_allocator const& a, move_tag m);
~hash_table() {}
hash_table& operator=(hash_table const&);
// Iterators
iterator_base begin() const {
return this->size_ ?
iterator_base(this->cached_begin_bucket_) :
iterator_base();
}
iterator_base end() const {
return iterator_base();
}
// Swap & Move
void swap(hash_table& x);
void fast_swap(hash_table& other);
void slow_swap(hash_table& other);
void partial_swap(hash_table& other);
void move(hash_table& x);
// Reserve and rehash
void create_for_insert(std::size_t n);
bool reserve_for_insert(std::size_t n);
void rehash(std::size_t n);
void rehash_impl(std::size_t n);
// Move/copy buckets
void move_buckets_to(buckets& dst);
void copy_buckets_to(buckets& dst) const;
// Misc. key methods
std::size_t count(key_type const& k) const;
iterator_base find(key_type const& k) const;
template <class Key, class Hash, class Pred>
iterator_base find(Key const& k, Hash const& h, Pred const& eq) const;
value_type& at(key_type const& k) const;
iterator_pair equal_range(key_type const& k) const;
// Erase
//
// no throw
void clear();
std::size_t erase_key(key_type const& k);
iterator_base erase_return_iterator(iterator_base r);
void erase(iterator_base r);
std::size_t erase_group(node_ptr* it, bucket_ptr bucket);
iterator_base erase_range(iterator_base r1, iterator_base r2);
// recompute_begin_bucket
void init_buckets();
// After an erase cached_begin_bucket_ might be left pointing to
// an empty bucket, so this is called to update it
//
// no throw
void recompute_begin_bucket(bucket_ptr b);
// This is called when a range has been erased
//
// no throw
void recompute_begin_bucket(bucket_ptr b1, bucket_ptr b2);
// no throw
float load_factor() const;
iterator_base emplace_empty_impl_with_node(
node_constructor&, std::size_t);
};
// Iterator Access
#if !defined(__clang__)
class iterator_access
{
public:
template <class Iterator>
static BOOST_DEDUCED_TYPENAME Iterator::base const&
get(Iterator const& it)
{
return it.base_;
}
};
#else
class iterator_access
{
public:
// Note: we access Iterator::base here, rather than in the function
// signature to work around a bug in the friend support of an
// early version of clang.
template <class Iterator>
struct base
{
typedef BOOST_DEDUCED_TYPENAME Iterator::base type;
};
template <class Iterator>
static BOOST_DEDUCED_TYPENAME base<Iterator>::type const&
get(Iterator const& it)
{
return it.base_;
}
};
#endif
// Iterators
template <class A, class G> class hash_iterator;
template <class A, class G> class hash_const_iterator;
template <class A, class G> class hash_local_iterator;
template <class A, class G> class hash_const_local_iterator;
// Local Iterators
//
// all no throw
template <class A, class G>
class hash_local_iterator
: public boost::iterator <
std::forward_iterator_tag,
BOOST_DEDUCED_TYPENAME A::value_type,
std::ptrdiff_t,
BOOST_DEDUCED_TYPENAME A::pointer,
BOOST_DEDUCED_TYPENAME A::reference>
{
public:
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
private:
typedef hash_buckets<A, G> buckets;
typedef BOOST_DEDUCED_TYPENAME buckets::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef hash_const_local_iterator<A, G> const_local_iterator;
friend class hash_const_local_iterator<A, G>;
node_ptr ptr_;
public:
hash_local_iterator() : ptr_() {}
explicit hash_local_iterator(node_ptr x) : ptr_(x) {}
BOOST_DEDUCED_TYPENAME A::reference operator*() const {
return node::get_value(ptr_);
}
value_type* operator->() const {
return &node::get_value(ptr_);
}
hash_local_iterator& operator++() {
ptr_ = ptr_->next_; return *this;
}
hash_local_iterator operator++(int) {
hash_local_iterator tmp(ptr_); ptr_ = ptr_->next_; return tmp; }
bool operator==(hash_local_iterator x) const {
return ptr_ == x.ptr_;
}
bool operator==(const_local_iterator x) const {
return ptr_ == x.ptr_;
}
bool operator!=(hash_local_iterator x) const {
return ptr_ != x.ptr_;
}
bool operator!=(const_local_iterator x) const {
return ptr_ != x.ptr_;
}
};
template <class A, class G>
class hash_const_local_iterator
: public boost::iterator <
std::forward_iterator_tag,
BOOST_DEDUCED_TYPENAME A::value_type,
std::ptrdiff_t,
BOOST_DEDUCED_TYPENAME A::const_pointer,
BOOST_DEDUCED_TYPENAME A::const_reference >
{
public:
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
private:
typedef hash_buckets<A, G> buckets;
typedef BOOST_DEDUCED_TYPENAME buckets::node_ptr ptr;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef hash_local_iterator<A, G> local_iterator;
friend class hash_local_iterator<A, G>;
ptr ptr_;
public:
hash_const_local_iterator() : ptr_() {}
explicit hash_const_local_iterator(ptr x) : ptr_(x) {}
hash_const_local_iterator(local_iterator x) : ptr_(x.ptr_) {}
BOOST_DEDUCED_TYPENAME A::const_reference
operator*() const {
return node::get_value(ptr_);
}
value_type const* operator->() const {
return &node::get_value(ptr_);
}
hash_const_local_iterator& operator++() {
ptr_ = ptr_->next_; return *this;
}
hash_const_local_iterator operator++(int) {
hash_const_local_iterator tmp(ptr_); ptr_ = ptr_->next_; return tmp;
}
bool operator==(local_iterator x) const {
return ptr_ == x.ptr_;
}
bool operator==(hash_const_local_iterator x) const {
return ptr_ == x.ptr_;
}
bool operator!=(local_iterator x) const {
return ptr_ != x.ptr_;
}
bool operator!=(hash_const_local_iterator x) const {
return ptr_ != x.ptr_;
}
};
// iterators
//
// all no throw
template <class A, class G>
class hash_iterator
: public boost::iterator <
std::forward_iterator_tag,
BOOST_DEDUCED_TYPENAME A::value_type,
std::ptrdiff_t,
BOOST_DEDUCED_TYPENAME A::pointer,
BOOST_DEDUCED_TYPENAME A::reference >
{
public:
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
private:
typedef hash_buckets<A, G> buckets;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef BOOST_DEDUCED_TYPENAME buckets::iterator_base base;
typedef hash_const_iterator<A, G> const_iterator;
friend class hash_const_iterator<A, G>;
base base_;
public:
hash_iterator() : base_() {}
explicit hash_iterator(base const& x) : base_(x) {}
BOOST_DEDUCED_TYPENAME A::reference operator*() const {
return *base_;
}
value_type* operator->() const {
return &*base_;
}
hash_iterator& operator++() {
base_.increment(); return *this;
}
hash_iterator operator++(int) {
hash_iterator tmp(base_); base_.increment(); return tmp;
}
bool operator==(hash_iterator const& x) const {
return base_ == x.base_;
}
bool operator==(const_iterator const& x) const {
return base_ == x.base_;
}
bool operator!=(hash_iterator const& x) const {
return base_ != x.base_;
}
bool operator!=(const_iterator const& x) const {
return base_ != x.base_;
}
};
template <class A, class G>
class hash_const_iterator
: public boost::iterator <
std::forward_iterator_tag,
BOOST_DEDUCED_TYPENAME A::value_type,
std::ptrdiff_t,
BOOST_DEDUCED_TYPENAME A::const_pointer,
BOOST_DEDUCED_TYPENAME A::const_reference >
{
public:
typedef BOOST_DEDUCED_TYPENAME A::value_type value_type;
private:
typedef hash_buckets<A, G> buckets;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef BOOST_DEDUCED_TYPENAME buckets::iterator_base base;
typedef hash_iterator<A, G> iterator;
friend class hash_iterator<A, G>;
friend class iterator_access;
base base_;
public:
hash_const_iterator() : base_() {}
explicit hash_const_iterator(base const& x) : base_(x) {}
hash_const_iterator(iterator const& x) : base_(x.base_) {}
BOOST_DEDUCED_TYPENAME A::const_reference operator*() const {
return *base_;
}
value_type const* operator->() const {
return &*base_;
}
hash_const_iterator& operator++() {
base_.increment(); return *this;
}
hash_const_iterator operator++(int) {
hash_const_iterator tmp(base_); base_.increment(); return tmp;
}
bool operator==(iterator const& x) const {
return base_ == x.base_;
}
bool operator==(hash_const_iterator const& x) const {
return base_ == x.base_;
}
bool operator!=(iterator const& x) const {
return base_ != x.base_;
}
bool operator!=(hash_const_iterator const& x) const {
return base_ != x.base_;
}
};
// types
template <class K, class V, class H, class P, class A, class E, class G>
struct types
{
public:
typedef K key_type;
typedef V value_type;
typedef H hasher;
typedef P key_equal;
typedef A value_allocator;
typedef E extractor;
typedef G group_type;
typedef hash_node_constructor<value_allocator, group_type>
node_constructor;
typedef hash_buckets<value_allocator, group_type> buckets;
typedef hash_buffered_functions<hasher, key_equal> buffered_functions;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef BOOST_DEDUCED_TYPENAME buckets::bucket bucket;
typedef BOOST_DEDUCED_TYPENAME buckets::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME buckets::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME buckets::iterator_base iterator_base;
typedef BOOST_DEDUCED_TYPENAME buckets::node_allocator node_allocator;
typedef std::pair<iterator_base, iterator_base> iterator_pair;
};
}}
#endif
@@ -0,0 +1,243 @@
/*
Copyright 2005-2007 Adobe Systems Incorporated
Use, modification and distribution are subject to 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).
*/
/*************************************************************************************************/
#ifndef BOOST_UNORDERED_DETAIL_MOVE_HEADER
#define BOOST_UNORDERED_DETAIL_MOVE_HEADER
#include <boost/config.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/and.hpp>
#include <boost/mpl/or.hpp>
#include <boost/mpl/not.hpp>
#include <boost/type_traits/is_convertible.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/type_traits/is_class.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/detail/workaround.hpp>
/*************************************************************************************************/
#if defined(BOOST_NO_SFINAE)
# define BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
#elif defined(__GNUC__) && \
(__GNUC__ < 3 || __GNUC__ == 3 && __GNUC_MINOR__ <= 3)
# define BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
#elif BOOST_WORKAROUND(BOOST_INTEL, < 900) || \
BOOST_WORKAROUND(__EDG_VERSION__, < 304) || \
BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x0593))
# define BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
#endif
/*************************************************************************************************/
namespace boost {
namespace unordered_detail {
/*************************************************************************************************/
namespace move_detail {
/*************************************************************************************************/
#if !defined(BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN)
/*************************************************************************************************/
template <typename T>
struct class_has_move_assign {
class type {
typedef T& (T::*E)(T t);
typedef char (&no_type)[1];
typedef char (&yes_type)[2];
template <E e> struct sfinae { typedef yes_type type; };
template <class U>
static typename sfinae<&U::operator=>::type test(int);
template <class U>
static no_type test(...);
public:
enum {value = sizeof(test<T>(1)) == sizeof(yes_type)};
};
};
/*************************************************************************************************/
template<typename T>
struct has_move_assign : boost::mpl::and_<boost::is_class<T>, class_has_move_assign<T> > {};
/*************************************************************************************************/
class test_can_convert_anything { };
/*************************************************************************************************/
#endif // BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
/*************************************************************************************************/
/*
REVISIT (sparent@adobe.com): This is a work around for Boost 1.34.1 and VC++ 2008 where
boost::is_convertible<T, T> fails to compile.
*/
template <typename T, typename U>
struct is_convertible : boost::mpl::or_<
boost::is_same<T, U>,
boost::is_convertible<T, U>
> { };
/*************************************************************************************************/
} //namespace move_detail
/*************************************************************************************************/
/*!
\ingroup move_related
\brief move_from is used for move_ctors.
*/
template <typename T>
struct move_from
{
explicit move_from(T& x) : source(x) { }
T& source;
private:
move_from& operator=(move_from const&);
};
/*************************************************************************************************/
#if !defined(BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN)
/*************************************************************************************************/
/*!
\ingroup move_related
\brief The is_movable trait can be used to identify movable types.
*/
template <typename T>
struct is_movable : boost::mpl::and_<
boost::is_convertible<move_from<T>, T>,
move_detail::has_move_assign<T>,
boost::mpl::not_<boost::is_convertible<move_detail::test_can_convert_anything, T> >
> { };
/*************************************************************************************************/
#else // BOOST_UNORDERED_NO_HAS_MOVE_ASSIGN
// On compilers which don't have adequate SFINAE support, treat most types as unmovable,
// unless the trait is specialized.
template <typename T>
struct is_movable : boost::mpl::false_ { };
#endif
/*************************************************************************************************/
#if !defined(BOOST_NO_SFINAE)
/*************************************************************************************************/
/*!
\ingroup move_related
\brief copy_sink and move_sink are used to select between overloaded operations according to
whether type T is movable and convertible to type U.
\sa move
*/
template <typename T,
typename U = T,
typename R = void*>
struct copy_sink : boost::enable_if<
boost::mpl::and_<
boost::unordered_detail::move_detail::is_convertible<T, U>,
boost::mpl::not_<is_movable<T> >
>,
R
>
{ };
/*************************************************************************************************/
/*!
\ingroup move_related
\brief move_sink and copy_sink are used to select between overloaded operations according to
whether type T is movable and convertible to type U.
\sa move
*/
template <typename T,
typename U = T,
typename R = void*>
struct move_sink : boost::enable_if<
boost::mpl::and_<
boost::unordered_detail::move_detail::is_convertible<T, U>,
is_movable<T>
>,
R
>
{ };
/*************************************************************************************************/
/*!
\ingroup move_related
\brief This version of move is selected when T is_movable . It in turn calls the move
constructor. This call, with the help of the return value optimization, will cause x to be moved
instead of copied to its destination. See adobe/test/move/main.cpp for examples.
*/
template <typename T>
T move(T& x, typename move_sink<T>::type = 0) { return T(move_from<T>(x)); }
/*************************************************************************************************/
/*!
\ingroup move_related
\brief This version of move is selected when T is not movable . The net result will be that
x gets copied.
*/
template <typename T>
T& move(T& x, typename copy_sink<T>::type = 0) { return x; }
/*************************************************************************************************/
#else // BOOST_NO_SFINAE
// On compilers without SFINAE, define copy_sink to always use the copy function.
template <typename T,
typename U = T,
typename R = void*>
struct copy_sink
{
typedef R type;
};
// Always copy the element unless this is overloaded.
template <typename T>
T& move(T& x) {
return x;
}
#endif // BOOST_NO_SFINAE
} // namespace unordered_detail
} // namespace boost
/*************************************************************************************************/
#endif
/*************************************************************************************************/
@@ -0,0 +1,226 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
// This contains the basic data structure, apart from the actual values. There's
// no construction or deconstruction here. So this only depends on the pointer
// type.
#ifndef BOOST_UNORDERED_DETAIL_NODE_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_NODE_HPP_INCLUDED
#include <boost/config.hpp>
#include <boost/assert.hpp>
#include <boost/detail/workaround.hpp>
#include <boost/unordered/detail/fwd.hpp>
#if BOOST_WORKAROUND(__BORLANDC__, <= 0X0582)
#define BOOST_UNORDERED_BORLAND_BOOL(x) (bool)(x)
#else
#define BOOST_UNORDERED_BORLAND_BOOL(x) x
#endif
namespace boost { namespace unordered_detail {
////////////////////////////////////////////////////////////////////////////
// ungrouped node implementation
template <class A>
inline BOOST_DEDUCED_TYPENAME ungrouped_node_base<A>::node_ptr&
ungrouped_node_base<A>::next_group(node_ptr ptr)
{
return ptr->next_;
}
template <class A>
inline std::size_t ungrouped_node_base<A>::group_count(node_ptr)
{
return 1;
}
template <class A>
inline void ungrouped_node_base<A>::add_to_bucket(node_ptr n, bucket& b)
{
n->next_ = b.next_;
b.next_ = n;
}
template <class A>
inline void ungrouped_node_base<A>::add_after_node(node_ptr n,
node_ptr position)
{
n->next_ = position->next_;
position->next_ = position;
}
template <class A>
inline void ungrouped_node_base<A>::unlink_nodes(bucket& b,
node_ptr begin, node_ptr end)
{
node_ptr* pos = &b.next_;
while(*pos != begin) pos = &(*pos)->next_;
*pos = end;
}
template <class A>
inline void ungrouped_node_base<A>::unlink_nodes(bucket& b, node_ptr end)
{
b.next_ = end;
}
template <class A>
inline void ungrouped_node_base<A>::unlink_node(bucket& b, node_ptr n)
{
unlink_nodes(b, n, n->next_);
}
////////////////////////////////////////////////////////////////////////////
// grouped node implementation
// If ptr is the first element in a group, return pointer to next group.
// Otherwise returns a pointer to ptr.
template <class A>
inline BOOST_DEDUCED_TYPENAME grouped_node_base<A>::node_ptr&
grouped_node_base<A>::next_group(node_ptr ptr)
{
return get(ptr).group_prev_->next_;
}
template <class A>
inline BOOST_DEDUCED_TYPENAME grouped_node_base<A>::node_ptr
grouped_node_base<A>::first_in_group(node_ptr ptr)
{
while(next_group(ptr) == ptr)
ptr = get(ptr).group_prev_;
return ptr;
}
template <class A>
inline std::size_t grouped_node_base<A>::group_count(node_ptr ptr)
{
node_ptr start = ptr;
std::size_t size = 0;
do {
++size;
ptr = get(ptr).group_prev_;
} while(ptr != start);
return size;
}
template <class A>
inline void grouped_node_base<A>::add_to_bucket(node_ptr n, bucket& b)
{
n->next_ = b.next_;
get(n).group_prev_ = n;
b.next_ = n;
}
template <class A>
inline void grouped_node_base<A>::add_after_node(node_ptr n, node_ptr pos)
{
n->next_ = next_group(pos);
get(n).group_prev_ = get(pos).group_prev_;
next_group(pos) = n;
get(pos).group_prev_ = n;
}
// Break a ciruclar list into two, with split as the beginning
// of the second group (if split is at the beginning then don't
// split).
template <class A>
inline BOOST_DEDUCED_TYPENAME grouped_node_base<A>::node_ptr
grouped_node_base<A>::split_group(node_ptr split)
{
node_ptr first = first_in_group(split);
if(first == split) return split;
node_ptr last = get(first).group_prev_;
get(first).group_prev_ = get(split).group_prev_;
get(split).group_prev_ = last;
return first;
}
template <class A>
void grouped_node_base<A>::unlink_node(bucket& b, node_ptr n)
{
node_ptr next = n->next_;
node_ptr* pos = &next_group(n);
if(*pos != n) {
// The node is at the beginning of a group.
// Find the previous node pointer:
pos = &b.next_;
while(*pos != n) pos = &next_group(*pos);
// Remove from group
if(BOOST_UNORDERED_BORLAND_BOOL(next) &&
get(next).group_prev_ == n)
{
get(next).group_prev_ = get(n).group_prev_;
}
}
else if(BOOST_UNORDERED_BORLAND_BOOL(next) &&
get(next).group_prev_ == n)
{
// The deleted node is not at the end of the group, so
// change the link from the next node.
get(next).group_prev_ = get(n).group_prev_;
}
else {
// The deleted node is at the end of the group, so the
// first node in the group is pointing to it.
// Find that to change its pointer.
node_ptr x = get(n).group_prev_;
while(get(x).group_prev_ != n) {
x = get(x).group_prev_;
}
get(x).group_prev_ = get(n).group_prev_;
}
*pos = next;
}
template <class A>
void grouped_node_base<A>::unlink_nodes(bucket& b,
node_ptr begin, node_ptr end)
{
node_ptr* pos = &next_group(begin);
if(*pos != begin) {
// The node is at the beginning of a group.
// Find the previous node pointer:
pos = &b.next_;
while(*pos != begin) pos = &next_group(*pos);
// Remove from group
if(BOOST_UNORDERED_BORLAND_BOOL(end)) split_group(end);
}
else {
node_ptr group1 = split_group(begin);
if(BOOST_UNORDERED_BORLAND_BOOL(end)) {
node_ptr group2 = split_group(end);
if(begin == group2) {
node_ptr end1 = get(group1).group_prev_;
node_ptr end2 = get(group2).group_prev_;
get(group1).group_prev_ = end2;
get(group2).group_prev_ = end1;
}
}
}
*pos = end;
}
template <class A>
void grouped_node_base<A>::unlink_nodes(bucket& b, node_ptr end)
{
split_group(end);
b.next_ = end;
}
}}
#endif
@@ -0,0 +1,778 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_ALL_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_ALL_HPP_INCLUDED
#include <cstddef>
#include <stdexcept>
#include <algorithm>
#include <boost/config/no_tr1/cmath.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/throw_exception.hpp>
#include <boost/unordered/detail/buckets.hpp>
namespace boost { namespace unordered_detail {
////////////////////////////////////////////////////////////////////////////
// Helper methods
// strong exception safety, no side effects
template <class T>
inline bool hash_table<T>::equal(
key_type const& k, value_type const& v) const
{
return this->key_eq()(k, get_key(v));
}
// strong exception safety, no side effects
template <class T>
template <class Key, class Pred>
inline BOOST_DEDUCED_TYPENAME T::node_ptr
hash_table<T>::find_iterator(bucket_ptr bucket, Key const& k,
Pred const& eq) const
{
node_ptr it = bucket->next_;
while (BOOST_UNORDERED_BORLAND_BOOL(it) &&
!eq(k, get_key(node::get_value(it))))
{
it = node::next_group(it);
}
return it;
}
// strong exception safety, no side effects
template <class T>
inline BOOST_DEDUCED_TYPENAME T::node_ptr
hash_table<T>::find_iterator(
bucket_ptr bucket, key_type const& k) const
{
node_ptr it = bucket->next_;
while (BOOST_UNORDERED_BORLAND_BOOL(it) &&
!equal(k, node::get_value(it)))
{
it = node::next_group(it);
}
return it;
}
// strong exception safety, no side effects
// pre: this->buckets_
template <class T>
inline BOOST_DEDUCED_TYPENAME T::node_ptr
hash_table<T>::find_iterator(key_type const& k) const
{
return find_iterator(this->get_bucket(this->bucket_index(k)), k);
}
// strong exception safety, no side effects
template <class T>
inline BOOST_DEDUCED_TYPENAME T::node_ptr*
hash_table<T>::find_for_erase(
bucket_ptr bucket, key_type const& k) const
{
node_ptr* it = &bucket->next_;
while(BOOST_UNORDERED_BORLAND_BOOL(*it) &&
!equal(k, node::get_value(*it)))
{
it = &node::next_group(*it);
}
return it;
}
////////////////////////////////////////////////////////////////////////////
// Load methods
// no throw
template <class T>
std::size_t hash_table<T>::max_size() const
{
using namespace std;
// size < mlf_ * count
return double_to_size_t(ceil(
(double) this->mlf_ * this->max_bucket_count())) - 1;
}
// strong safety
template <class T>
inline std::size_t hash_table<T>::bucket_index(
key_type const& k) const
{
// hash_function can throw:
return this->hash_function()(k) % this->bucket_count_;
}
// no throw
template <class T>
inline std::size_t hash_table<T>::calculate_max_load()
{
using namespace std;
// From 6.3.1/13:
// Only resize when size >= mlf_ * count
return double_to_size_t(ceil((double) mlf_ * this->bucket_count_));
}
template <class T>
void hash_table<T>::max_load_factor(float z)
{
BOOST_ASSERT(z > 0);
mlf_ = (std::max)(z, minimum_max_load_factor);
this->max_load_ = this->calculate_max_load();
}
// no throw
template <class T>
inline std::size_t hash_table<T>::min_buckets_for_size(
std::size_t size) const
{
BOOST_ASSERT(this->mlf_ != 0);
using namespace std;
// From 6.3.1/13:
// size < mlf_ * count
// => count > size / mlf_
//
// Or from rehash post-condition:
// count > size / mlf_
return next_prime(double_to_size_t(floor(size / (double) mlf_)) + 1);
}
////////////////////////////////////////////////////////////////////////////
// recompute_begin_bucket
// init_buckets
template <class T>
inline void hash_table<T>::init_buckets()
{
if (this->size_) {
this->cached_begin_bucket_ = this->buckets_;
while (!this->cached_begin_bucket_->next_)
++this->cached_begin_bucket_;
} else {
this->cached_begin_bucket_ = this->get_bucket(this->bucket_count_);
}
this->max_load_ = calculate_max_load();
}
// After an erase cached_begin_bucket_ might be left pointing to
// an empty bucket, so this is called to update it
//
// no throw
template <class T>
inline void hash_table<T>::recompute_begin_bucket(bucket_ptr b)
{
BOOST_ASSERT(!(b < this->cached_begin_bucket_));
if(b == this->cached_begin_bucket_)
{
if (this->size_ != 0) {
while (!this->cached_begin_bucket_->next_)
++this->cached_begin_bucket_;
} else {
this->cached_begin_bucket_ =
this->get_bucket(this->bucket_count_);
}
}
}
// This is called when a range has been erased
//
// no throw
template <class T>
inline void hash_table<T>::recompute_begin_bucket(
bucket_ptr b1, bucket_ptr b2)
{
BOOST_ASSERT(!(b1 < this->cached_begin_bucket_) && !(b2 < b1));
BOOST_ASSERT(BOOST_UNORDERED_BORLAND_BOOL(b2->next_));
if(b1 == this->cached_begin_bucket_ && !b1->next_)
this->cached_begin_bucket_ = b2;
}
// no throw
template <class T>
inline float hash_table<T>::load_factor() const
{
BOOST_ASSERT(this->bucket_count_ != 0);
return static_cast<float>(this->size_)
/ static_cast<float>(this->bucket_count_);
}
////////////////////////////////////////////////////////////////////////////
// Constructors
template <class T>
hash_table<T>::hash_table(std::size_t num_buckets,
hasher const& hf, key_equal const& eq, node_allocator const& a)
: buckets(a, next_prime(num_buckets)),
base(hf, eq),
size_(),
mlf_(1.0f),
cached_begin_bucket_(),
max_load_(0)
{
}
// Copy Construct with allocator
template <class T>
hash_table<T>::hash_table(hash_table const& x,
node_allocator const& a)
: buckets(a, x.min_buckets_for_size(x.size_)),
base(x),
size_(x.size_),
mlf_(x.mlf_),
cached_begin_bucket_(),
max_load_(0)
{
if(x.size_) {
x.copy_buckets_to(*this);
this->init_buckets();
}
}
// Move Construct
template <class T>
hash_table<T>::hash_table(hash_table& x, move_tag)
: buckets(x.node_alloc(), x.bucket_count_),
base(x),
size_(0),
mlf_(1.0f),
cached_begin_bucket_(),
max_load_(0)
{
this->partial_swap(x);
}
template <class T>
hash_table<T>::hash_table(hash_table& x,
node_allocator const& a, move_tag)
: buckets(a, x.bucket_count_),
base(x),
size_(0),
mlf_(x.mlf_),
cached_begin_bucket_(),
max_load_(0)
{
if(a == x.node_alloc()) {
this->partial_swap(x);
}
else if(x.size_) {
x.copy_buckets_to(*this);
this->size_ = x.size_;
this->init_buckets();
}
}
template <class T>
hash_table<T>& hash_table<T>::operator=(
hash_table const& x)
{
hash_table tmp(x, this->node_alloc());
this->fast_swap(tmp);
return *this;
}
////////////////////////////////////////////////////////////////////////////
// Swap & Move
// Swap
//
// Strong exception safety
//
// Can throw if hash or predicate object's copy constructor throws
// or if allocators are unequal.
template <class T>
inline void hash_table<T>::partial_swap(hash_table& x)
{
this->buckets::swap(x); // No throw
std::swap(this->size_, x.size_);
std::swap(this->mlf_, x.mlf_);
std::swap(this->cached_begin_bucket_, x.cached_begin_bucket_);
std::swap(this->max_load_, x.max_load_);
}
template <class T>
inline void hash_table<T>::fast_swap(hash_table& x)
{
// These can throw, but they only affect the function objects
// that aren't in use so it is strongly exception safe, via.
// double buffering.
{
set_hash_functions<hasher, key_equal> op1(*this, x);
set_hash_functions<hasher, key_equal> op2(x, *this);
op1.commit();
op2.commit();
}
this->buckets::swap(x); // No throw
std::swap(this->size_, x.size_);
std::swap(this->mlf_, x.mlf_);
std::swap(this->cached_begin_bucket_, x.cached_begin_bucket_);
std::swap(this->max_load_, x.max_load_);
}
template <class T>
inline void hash_table<T>::slow_swap(hash_table& x)
{
if(this == &x) return;
{
// These can throw, but they only affect the function objects
// that aren't in use so it is strongly exception safe, via.
// double buffering.
set_hash_functions<hasher, key_equal> op1(*this, x);
set_hash_functions<hasher, key_equal> op2(x, *this);
// Create new buckets in separate hash_buckets objects
// which will clean up if anything throws an exception.
// (all can throw, but with no effect as these are new objects).
buckets b1(this->node_alloc(), x.min_buckets_for_size(x.size_));
if(x.size_) x.copy_buckets_to(b1);
buckets b2(x.node_alloc(), this->min_buckets_for_size(this->size_));
if(this->size_) copy_buckets_to(b2);
// Modifying the data, so no throw from now on.
b1.swap(*this);
b2.swap(x);
op1.commit();
op2.commit();
}
std::swap(this->size_, x.size_);
if(this->buckets_) this->init_buckets();
if(x.buckets_) x.init_buckets();
}
template <class T>
void hash_table<T>::swap(hash_table& x)
{
if(this->node_alloc() == x.node_alloc()) {
if(this != &x) this->fast_swap(x);
}
else {
this->slow_swap(x);
}
}
// Move
//
// Strong exception safety (might change unused function objects)
//
// Can throw if hash or predicate object's copy constructor throws
// or if allocators are unequal.
template <class T>
void hash_table<T>::move(hash_table& x)
{
// This can throw, but it only affects the function objects
// that aren't in use so it is strongly exception safe, via.
// double buffering.
set_hash_functions<hasher, key_equal> new_func_this(*this, x);
if(this->node_alloc() == x.node_alloc()) {
this->buckets::move(x); // no throw
this->size_ = x.size_;
this->cached_begin_bucket_ = x.cached_begin_bucket_;
this->max_load_ = x.max_load_;
x.size_ = 0;
}
else {
// Create new buckets in separate HASH_TABLE_DATA objects
// which will clean up if anything throws an exception.
// (all can throw, but with no effect as these are new objects).
buckets b(this->node_alloc(), x.min_buckets_for_size(x.size_));
if(x.size_) x.copy_buckets_to(b);
// Start updating the data here, no throw from now on.
this->size_ = x.size_;
b.swap(*this);
this->init_buckets();
}
// We've made it, the rest is no throw.
this->mlf_ = x.mlf_;
new_func_this.commit();
}
////////////////////////////////////////////////////////////////////////////
// Reserve & Rehash
// basic exception safety
template <class T>
inline void hash_table<T>::create_for_insert(std::size_t size)
{
this->bucket_count_ = (std::max)(this->bucket_count_,
this->min_buckets_for_size(size));
this->create_buckets();
this->init_buckets();
}
// basic exception safety
template <class T>
inline bool hash_table<T>::reserve_for_insert(std::size_t size)
{
if(size >= max_load_) {
std::size_t num_buckets
= this->min_buckets_for_size((std::max)(size,
this->size_ + (this->size_ >> 1)));
if(num_buckets != this->bucket_count_) {
rehash_impl(num_buckets);
return true;
}
}
return false;
}
// if hash function throws, basic exception safety
// strong otherwise.
template <class T>
inline void hash_table<T>::rehash(std::size_t min_buckets)
{
using namespace std;
if(!this->size_) {
if(this->buckets_) this->delete_buckets();
this->bucket_count_ = next_prime(min_buckets);
}
else {
// no throw:
min_buckets = next_prime((std::max)(min_buckets,
double_to_size_t(floor(this->size_ / (double) mlf_)) + 1));
if(min_buckets != this->bucket_count_) rehash_impl(min_buckets);
}
}
// if hash function throws, basic exception safety
// strong otherwise
template <class T>
void hash_table<T>
::rehash_impl(std::size_t num_buckets)
{
hasher const& hf = this->hash_function();
std::size_t size = this->size_;
bucket_ptr end = this->get_bucket(this->bucket_count_);
buckets dst(this->node_alloc(), num_buckets);
dst.create_buckets();
buckets src(this->node_alloc(), this->bucket_count_);
src.swap(*this);
this->size_ = 0;
for(bucket_ptr bucket = this->cached_begin_bucket_;
bucket != end; ++bucket)
{
node_ptr group = bucket->next_;
while(group) {
// Move the first group of equivalent nodes in bucket to dst.
// This next line throws iff the hash function throws.
bucket_ptr dst_bucket = dst.bucket_ptr_from_hash(
hf(get_key_from_ptr(group)));
node_ptr& next_group = node::next_group(group);
bucket->next_ = next_group;
next_group = dst_bucket->next_;
dst_bucket->next_ = group;
group = bucket->next_;
}
}
// Swap the new nodes back into the container and setup the local
// variables.
this->size_ = size;
dst.swap(*this); // no throw
this->init_buckets();
}
////////////////////////////////////////////////////////////////////////////
// copy_buckets_to
// copy_buckets_to
//
// basic excpetion safety. If an exception is thrown this will
// leave dst partially filled.
template <class T>
void hash_table<T>
::copy_buckets_to(buckets& dst) const
{
BOOST_ASSERT(this->buckets_ && !dst.buckets_);
hasher const& hf = this->hash_function();
bucket_ptr end = this->get_bucket(this->bucket_count_);
node_constructor a(dst);
dst.create_buckets();
// no throw:
for(bucket_ptr i = this->cached_begin_bucket_; i != end; ++i) {
// no throw:
for(node_ptr it = i->next_; it;) {
// hash function can throw.
bucket_ptr dst_bucket = dst.bucket_ptr_from_hash(
hf(get_key_from_ptr(it)));
// throws, strong
node_ptr group_end = node::next_group(it);
a.construct(node::get_value(it));
node_ptr n = a.release();
node::add_to_bucket(n, *dst_bucket);
for(it = it->next_; it != group_end; it = it->next_) {
a.construct(node::get_value(it));
node::add_after_node(a.release(), n);
}
}
}
}
////////////////////////////////////////////////////////////////////////////
// Misc. key methods
// strong exception safety
// count
//
// strong exception safety, no side effects
template <class T>
std::size_t hash_table<T>::count(key_type const& k) const
{
if(!this->size_) return 0;
node_ptr it = find_iterator(k); // throws, strong
return BOOST_UNORDERED_BORLAND_BOOL(it) ? node::group_count(it) : 0;
}
// find
//
// strong exception safety, no side effects
template <class T>
BOOST_DEDUCED_TYPENAME T::iterator_base
hash_table<T>::find(key_type const& k) const
{
if(!this->size_) return this->end();
bucket_ptr bucket = this->get_bucket(this->bucket_index(k));
node_ptr it = find_iterator(bucket, k);
if (BOOST_UNORDERED_BORLAND_BOOL(it))
return iterator_base(bucket, it);
else
return this->end();
}
template <class T>
template <class Key, class Hash, class Pred>
BOOST_DEDUCED_TYPENAME T::iterator_base hash_table<T>::find(Key const& k,
Hash const& h, Pred const& eq) const
{
if(!this->size_) return this->end();
bucket_ptr bucket = this->get_bucket(h(k) % this->bucket_count_);
node_ptr it = find_iterator(bucket, k, eq);
if (BOOST_UNORDERED_BORLAND_BOOL(it))
return iterator_base(bucket, it);
else
return this->end();
}
template <class T>
BOOST_DEDUCED_TYPENAME T::value_type&
hash_table<T>::at(key_type const& k) const
{
if(!this->size_)
boost::throw_exception(std::out_of_range("Unable to find key in unordered_map."));
bucket_ptr bucket = this->get_bucket(this->bucket_index(k));
node_ptr it = find_iterator(bucket, k);
if (!it)
boost::throw_exception(std::out_of_range("Unable to find key in unordered_map."));
return node::get_value(it);
}
// equal_range
//
// strong exception safety, no side effects
template <class T>
BOOST_DEDUCED_TYPENAME T::iterator_pair
hash_table<T>::equal_range(key_type const& k) const
{
if(!this->size_)
return iterator_pair(this->end(), this->end());
bucket_ptr bucket = this->get_bucket(this->bucket_index(k));
node_ptr it = find_iterator(bucket, k);
if (BOOST_UNORDERED_BORLAND_BOOL(it)) {
iterator_base first(iterator_base(bucket, it));
iterator_base second(first);
second.increment_bucket(node::next_group(second.node_));
return iterator_pair(first, second);
}
else {
return iterator_pair(this->end(), this->end());
}
}
////////////////////////////////////////////////////////////////////////////
// Erase methods
template <class T>
void hash_table<T>::clear()
{
if(!this->size_) return;
bucket_ptr end = this->get_bucket(this->bucket_count_);
for(bucket_ptr begin = this->buckets_; begin != end; ++begin) {
this->clear_bucket(begin);
}
this->size_ = 0;
this->cached_begin_bucket_ = end;
}
template <class T>
inline std::size_t hash_table<T>::erase_group(
node_ptr* it, bucket_ptr bucket)
{
node_ptr pos = *it;
node_ptr end = node::next_group(pos);
*it = end;
std::size_t count = this->delete_nodes(pos, end);
this->size_ -= count;
this->recompute_begin_bucket(bucket);
return count;
}
template <class T>
std::size_t hash_table<T>::erase_key(key_type const& k)
{
if(!this->size_) return 0;
// No side effects in initial section
bucket_ptr bucket = this->get_bucket(this->bucket_index(k));
node_ptr* it = this->find_for_erase(bucket, k);
// No throw.
return *it ? this->erase_group(it, bucket) : 0;
}
template <class T>
void hash_table<T>::erase(iterator_base r)
{
BOOST_ASSERT(r.node_);
--this->size_;
node::unlink_node(*r.bucket_, r.node_);
this->delete_node(r.node_);
// r has been invalidated but its bucket is still valid
this->recompute_begin_bucket(r.bucket_);
}
template <class T>
BOOST_DEDUCED_TYPENAME T::iterator_base
hash_table<T>::erase_return_iterator(iterator_base r)
{
BOOST_ASSERT(r.node_);
iterator_base next = r;
next.increment();
--this->size_;
node::unlink_node(*r.bucket_, r.node_);
this->delete_node(r.node_);
// r has been invalidated but its bucket is still valid
this->recompute_begin_bucket(r.bucket_, next.bucket_);
return next;
}
template <class T>
BOOST_DEDUCED_TYPENAME T::iterator_base
hash_table<T>::erase_range(
iterator_base r1, iterator_base r2)
{
if(r1 != r2)
{
BOOST_ASSERT(r1.node_);
if (r1.bucket_ == r2.bucket_) {
node::unlink_nodes(*r1.bucket_, r1.node_, r2.node_);
this->size_ -= this->delete_nodes(r1.node_, r2.node_);
// No need to call recompute_begin_bucket because
// the nodes are only deleted from one bucket, which
// still contains r2 after the erase.
BOOST_ASSERT(r1.bucket_->next_);
}
else {
bucket_ptr end_bucket = r2.node_ ?
r2.bucket_ : this->get_bucket(this->bucket_count_);
BOOST_ASSERT(r1.bucket_ < end_bucket);
node::unlink_nodes(*r1.bucket_, r1.node_, node_ptr());
this->size_ -= this->delete_nodes(r1.node_, node_ptr());
bucket_ptr i = r1.bucket_;
for(++i; i != end_bucket; ++i) {
this->size_ -= this->delete_nodes(i->next_, node_ptr());
i->next_ = node_ptr();
}
if(r2.node_) {
node_ptr first = r2.bucket_->next_;
node::unlink_nodes(*r2.bucket_, r2.node_);
this->size_ -= this->delete_nodes(first, r2.node_);
}
// r1 has been invalidated but its bucket is still
// valid.
this->recompute_begin_bucket(r1.bucket_, end_bucket);
}
}
return r2;
}
template <class T>
BOOST_DEDUCED_TYPENAME hash_table<T>::iterator_base
hash_table<T>::emplace_empty_impl_with_node(
node_constructor& a, std::size_t size)
{
key_type const& k = get_key(a.value());
std::size_t hash_value = this->hash_function()(k);
if(this->buckets_) this->reserve_for_insert(size);
else this->create_for_insert(size);
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
node_ptr n = a.release();
node::add_to_bucket(n, *bucket);
++this->size_;
this->cached_begin_bucket_ = bucket;
return iterator_base(bucket, n);
}
}}
#endif
@@ -0,0 +1,513 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2010 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_UNIQUE_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_UNIQUE_HPP_INCLUDED
#include <boost/unordered/detail/table.hpp>
#include <boost/unordered/detail/extract_key.hpp>
namespace boost { namespace unordered_detail {
template <class T>
class hash_unique_table : public T::table
{
public:
typedef BOOST_DEDUCED_TYPENAME T::hasher hasher;
typedef BOOST_DEDUCED_TYPENAME T::key_equal key_equal;
typedef BOOST_DEDUCED_TYPENAME T::value_allocator value_allocator;
typedef BOOST_DEDUCED_TYPENAME T::key_type key_type;
typedef BOOST_DEDUCED_TYPENAME T::value_type value_type;
typedef BOOST_DEDUCED_TYPENAME T::table table;
typedef BOOST_DEDUCED_TYPENAME T::node_constructor node_constructor;
typedef BOOST_DEDUCED_TYPENAME T::node node;
typedef BOOST_DEDUCED_TYPENAME T::node_ptr node_ptr;
typedef BOOST_DEDUCED_TYPENAME T::bucket_ptr bucket_ptr;
typedef BOOST_DEDUCED_TYPENAME T::iterator_base iterator_base;
typedef BOOST_DEDUCED_TYPENAME T::extractor extractor;
typedef std::pair<iterator_base, bool> emplace_return;
// Constructors
hash_unique_table(std::size_t n, hasher const& hf, key_equal const& eq,
value_allocator const& a)
: table(n, hf, eq, a) {}
hash_unique_table(hash_unique_table const& x)
: table(x, x.node_alloc()) {}
hash_unique_table(hash_unique_table const& x, value_allocator const& a)
: table(x, a) {}
hash_unique_table(hash_unique_table& x, move_tag m)
: table(x, m) {}
hash_unique_table(hash_unique_table& x, value_allocator const& a,
move_tag m)
: table(x, a, m) {}
~hash_unique_table() {}
// Insert methods
emplace_return emplace_impl_with_node(node_constructor& a);
value_type& operator[](key_type const& k);
// equals
bool equals(hash_unique_table const&) const;
node_ptr add_node(node_constructor& a, bucket_ptr bucket);
#if defined(BOOST_UNORDERED_STD_FORWARD)
template<class... Args>
emplace_return emplace(Args&&... args);
template<class... Args>
emplace_return emplace_impl(key_type const& k, Args&&... args);
template<class... Args>
emplace_return emplace_impl(no_key, Args&&... args);
template<class... Args>
emplace_return emplace_empty_impl(Args&&... args);
#else
#define BOOST_UNORDERED_INSERT_IMPL(z, n, _) \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, n)> \
emplace_return emplace( \
BOOST_UNORDERED_FUNCTION_PARAMS(z, n)); \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, n)> \
emplace_return emplace_impl(key_type const& k, \
BOOST_UNORDERED_FUNCTION_PARAMS(z, n)); \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, n)> \
emplace_return emplace_impl(no_key, \
BOOST_UNORDERED_FUNCTION_PARAMS(z, n)); \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, n)> \
emplace_return emplace_empty_impl( \
BOOST_UNORDERED_FUNCTION_PARAMS(z, n));
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_INSERT_IMPL, _)
#undef BOOST_UNORDERED_INSERT_IMPL
#endif
// if hash function throws, or inserting > 1 element, basic exception
// safety strong otherwise
template <class InputIt>
void insert_range(InputIt i, InputIt j);
template <class InputIt>
void insert_range_impl(key_type const&, InputIt i, InputIt j);
template <class InputIt>
void insert_range_impl2(node_constructor&, key_type const&, InputIt i, InputIt j);
template <class InputIt>
void insert_range_impl(no_key, InputIt i, InputIt j);
};
template <class H, class P, class A>
struct set : public types<
BOOST_DEDUCED_TYPENAME A::value_type,
BOOST_DEDUCED_TYPENAME A::value_type,
H, P, A,
set_extractor<BOOST_DEDUCED_TYPENAME A::value_type>,
ungrouped>
{
typedef hash_unique_table<set<H, P, A> > impl;
typedef hash_table<set<H, P, A> > table;
};
template <class K, class H, class P, class A>
struct map : public types<
K, BOOST_DEDUCED_TYPENAME A::value_type,
H, P, A,
map_extractor<K, BOOST_DEDUCED_TYPENAME A::value_type>,
ungrouped>
{
typedef hash_unique_table<map<K, H, P, A> > impl;
typedef hash_table<map<K, H, P, A> > table;
};
////////////////////////////////////////////////////////////////////////////
// Equality
template <class T>
bool hash_unique_table<T>
::equals(hash_unique_table<T> const& other) const
{
if(this->size_ != other.size_) return false;
if(!this->size_) return true;
bucket_ptr end = this->get_bucket(this->bucket_count_);
for(bucket_ptr i = this->cached_begin_bucket_; i != end; ++i)
{
node_ptr it1 = i->next_;
while(BOOST_UNORDERED_BORLAND_BOOL(it1))
{
node_ptr it2 = other.find_iterator(this->get_key_from_ptr(it1));
if(!BOOST_UNORDERED_BORLAND_BOOL(it2)) return false;
if(!extractor::compare_mapped(
node::get_value(it1), node::get_value(it2)))
return false;
it1 = it1->next_;
}
}
return true;
}
////////////////////////////////////////////////////////////////////////////
// A convenience method for adding nodes.
template <class T>
inline BOOST_DEDUCED_TYPENAME hash_unique_table<T>::node_ptr
hash_unique_table<T>::add_node(node_constructor& a,
bucket_ptr bucket)
{
node_ptr n = a.release();
node::add_to_bucket(n, *bucket);
++this->size_;
if(bucket < this->cached_begin_bucket_)
this->cached_begin_bucket_ = bucket;
return n;
}
////////////////////////////////////////////////////////////////////////////
// Insert methods
// if hash function throws, basic exception safety
// strong otherwise
template <class T>
BOOST_DEDUCED_TYPENAME hash_unique_table<T>::value_type&
hash_unique_table<T>::operator[](key_type const& k)
{
typedef BOOST_DEDUCED_TYPENAME value_type::second_type mapped_type;
std::size_t hash_value = this->hash_function()(k);
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
if(!this->buckets_) {
node_constructor a(*this);
a.construct_pair(k, (mapped_type*) 0);
return *this->emplace_empty_impl_with_node(a, 1);
}
node_ptr pos = this->find_iterator(bucket, k);
if (BOOST_UNORDERED_BORLAND_BOOL(pos)) {
return node::get_value(pos);
}
else {
// Side effects only in this block.
// Create the node before rehashing in case it throws an
// exception (need strong safety in such a case).
node_constructor a(*this);
a.construct_pair(k, (mapped_type*) 0);
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
if(this->reserve_for_insert(this->size_ + 1))
bucket = this->bucket_ptr_from_hash(hash_value);
// Nothing after this point can throw.
return node::get_value(add_node(a, bucket));
}
}
template <class T>
inline BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace_impl_with_node(node_constructor& a)
{
// No side effects in this initial code
key_type const& k = this->get_key(a.value());
std::size_t hash_value = this->hash_function()(k);
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
node_ptr pos = this->find_iterator(bucket, k);
if (BOOST_UNORDERED_BORLAND_BOOL(pos)) {
// Found an existing key, return it (no throw).
return emplace_return(iterator_base(bucket, pos), false);
} else {
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
if(this->reserve_for_insert(this->size_ + 1))
bucket = this->bucket_ptr_from_hash(hash_value);
// Nothing after this point can throw.
return emplace_return(
iterator_base(bucket, add_node(a, bucket)),
true);
}
}
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class T>
template<class... Args>
inline BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace_impl(key_type const& k,
Args&&... args)
{
// No side effects in this initial code
std::size_t hash_value = this->hash_function()(k);
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
node_ptr pos = this->find_iterator(bucket, k);
if (BOOST_UNORDERED_BORLAND_BOOL(pos)) {
// Found an existing key, return it (no throw).
return emplace_return(iterator_base(bucket, pos), false);
} else {
// Doesn't already exist, add to bucket.
// Side effects only in this block.
// Create the node before rehashing in case it throws an
// exception (need strong safety in such a case).
node_constructor a(*this);
a.construct(std::forward<Args>(args)...);
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
if(this->reserve_for_insert(this->size_ + 1))
bucket = this->bucket_ptr_from_hash(hash_value);
// Nothing after this point can throw.
return emplace_return(
iterator_base(bucket, add_node(a, bucket)),
true);
}
}
template <class T>
template<class... Args>
inline BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace_impl(no_key, Args&&... args)
{
// Construct the node regardless - in order to get the key.
// It will be discarded if it isn't used
node_constructor a(*this);
a.construct(std::forward<Args>(args)...);
return emplace_impl_with_node(a);
}
template <class T>
template<class... Args>
inline BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace_empty_impl(Args&&... args)
{
node_constructor a(*this);
a.construct(std::forward<Args>(args)...);
return emplace_return(this->emplace_empty_impl_with_node(a, 1), true);
}
#else
#define BOOST_UNORDERED_INSERT_IMPL(z, num_params, _) \
template <class T> \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params)> \
inline BOOST_DEDUCED_TYPENAME \
hash_unique_table<T>::emplace_return \
hash_unique_table<T>::emplace_impl( \
key_type const& k, \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
std::size_t hash_value = this->hash_function()(k); \
bucket_ptr bucket \
= this->bucket_ptr_from_hash(hash_value); \
node_ptr pos = this->find_iterator(bucket, k); \
\
if (BOOST_UNORDERED_BORLAND_BOOL(pos)) { \
return emplace_return(iterator_base(bucket, pos), false); \
} else { \
node_constructor a(*this); \
a.construct(BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
\
if(this->reserve_for_insert(this->size_ + 1)) \
bucket = this->bucket_ptr_from_hash(hash_value); \
\
return emplace_return(iterator_base(bucket, \
add_node(a, bucket)), true); \
} \
} \
\
template <class T> \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params)> \
inline BOOST_DEDUCED_TYPENAME \
hash_unique_table<T>::emplace_return \
hash_unique_table<T>:: \
emplace_impl(no_key, \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
node_constructor a(*this); \
a.construct(BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
return emplace_impl_with_node(a); \
} \
\
template <class T> \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params)> \
inline BOOST_DEDUCED_TYPENAME \
hash_unique_table<T>::emplace_return \
hash_unique_table<T>:: \
emplace_empty_impl( \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
node_constructor a(*this); \
a.construct(BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
return emplace_return(this->emplace_empty_impl_with_node(a, 1), true); \
}
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_INSERT_IMPL, _)
#undef BOOST_UNORDERED_INSERT_IMPL
#endif
#if defined(BOOST_UNORDERED_STD_FORWARD)
// Emplace (unique keys)
// (I'm using an overloaded emplace for both 'insert' and 'emplace')
// if hash function throws, basic exception safety
// strong otherwise
template <class T>
template<class... Args>
BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace(Args&&... args)
{
return this->size_ ?
emplace_impl(
extractor::extract(std::forward<Args>(args)...),
std::forward<Args>(args)...) :
emplace_empty_impl(std::forward<Args>(args)...);
}
#else
template <class T>
template <class Arg0>
BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return
hash_unique_table<T>::emplace(Arg0 const& arg0)
{
return this->size_ ?
emplace_impl(extractor::extract(arg0), arg0) :
emplace_empty_impl(arg0);
}
#define BOOST_UNORDERED_INSERT_IMPL(z, num_params, _) \
template <class T> \
template <BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params)> \
BOOST_DEDUCED_TYPENAME hash_unique_table<T>::emplace_return \
hash_unique_table<T>::emplace( \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
return this->size_ ? \
emplace_impl(extractor::extract(arg0, arg1), \
BOOST_UNORDERED_CALL_PARAMS(z, num_params)) : \
emplace_empty_impl( \
BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
}
BOOST_PP_REPEAT_FROM_TO(2, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_INSERT_IMPL, _)
#undef BOOST_UNORDERED_INSERT_IMPL
#endif
////////////////////////////////////////////////////////////////////////////
// Insert range methods
template <class T>
template <class InputIt>
inline void hash_unique_table<T>::insert_range_impl2(
node_constructor& a, key_type const& k, InputIt i, InputIt j)
{
// No side effects in this initial code
std::size_t hash_value = this->hash_function()(k);
bucket_ptr bucket = this->bucket_ptr_from_hash(hash_value);
node_ptr pos = this->find_iterator(bucket, k);
if (!BOOST_UNORDERED_BORLAND_BOOL(pos)) {
// Doesn't already exist, add to bucket.
// Side effects only in this block.
// Create the node before rehashing in case it throws an
// exception (need strong safety in such a case).
a.construct(*i);
// reserve has basic exception safety if the hash function
// throws, strong otherwise.
if(this->size_ + 1 >= this->max_load_) {
this->reserve_for_insert(this->size_ + insert_size(i, j));
bucket = this->bucket_ptr_from_hash(hash_value);
}
// Nothing after this point can throw.
add_node(a, bucket);
}
}
template <class T>
template <class InputIt>
inline void hash_unique_table<T>::insert_range_impl(
key_type const&, InputIt i, InputIt j)
{
node_constructor a(*this);
if(!this->size_) {
a.construct(*i);
this->emplace_empty_impl_with_node(a, 1);
++i;
if(i == j) return;
}
do {
// Note: can't use get_key as '*i' might not be value_type - it
// could be a pair with first_types as key_type without const or a
// different second_type.
//
// TODO: Might be worth storing the value_type instead of the key
// here. Could be more efficient if '*i' is expensive. Could be
// less efficient if copying the full value_type is expensive.
insert_range_impl2(a, extractor::extract(*i), i, j);
} while(++i != j);
}
template <class T>
template <class InputIt>
inline void hash_unique_table<T>::insert_range_impl(
no_key, InputIt i, InputIt j)
{
node_constructor a(*this);
if(!this->size_) {
a.construct(*i);
this->emplace_empty_impl_with_node(a, 1);
++i;
if(i == j) return;
}
do {
// No side effects in this initial code
a.construct(*i);
emplace_impl_with_node(a);
} while(++i != j);
}
// if hash function throws, or inserting > 1 element, basic exception safety
// strong otherwise
template <class T>
template <class InputIt>
void hash_unique_table<T>::insert_range(InputIt i, InputIt j)
{
if(i != j)
return insert_range_impl(extractor::extract(*i), i, j);
}
}}
#endif
@@ -0,0 +1,331 @@
// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
// Copyright (C) 2005-2009 Daniel James
// 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)
#ifndef BOOST_UNORDERED_DETAIL_UTIL_HPP_INCLUDED
#define BOOST_UNORDERED_DETAIL_UTIL_HPP_INCLUDED
#include <cstddef>
#include <utility>
#include <algorithm>
#include <boost/limits.hpp>
#include <boost/iterator/iterator_categories.hpp>
#include <boost/preprocessor/seq/size.hpp>
#include <boost/preprocessor/seq/enum.hpp>
#include <boost/unordered/detail/fwd.hpp>
namespace boost { namespace unordered_detail {
////////////////////////////////////////////////////////////////////////////
// convert double to std::size_t
inline std::size_t double_to_size_t(double f)
{
return f >= static_cast<double>(
(std::numeric_limits<std::size_t>::max)()) ?
(std::numeric_limits<std::size_t>::max)() :
static_cast<std::size_t>(f);
}
////////////////////////////////////////////////////////////////////////////
// primes
#define BOOST_UNORDERED_PRIMES \
(5ul)(11ul)(17ul)(29ul)(37ul)(53ul)(67ul)(79ul) \
(97ul)(131ul)(193ul)(257ul)(389ul)(521ul)(769ul) \
(1031ul)(1543ul)(2053ul)(3079ul)(6151ul)(12289ul)(24593ul) \
(49157ul)(98317ul)(196613ul)(393241ul)(786433ul) \
(1572869ul)(3145739ul)(6291469ul)(12582917ul)(25165843ul) \
(50331653ul)(100663319ul)(201326611ul)(402653189ul)(805306457ul) \
(1610612741ul)(3221225473ul)(4294967291ul)
template<class T> struct prime_list_template
{
static std::size_t const value[];
#if !defined(SUNPRO_CC)
static std::ptrdiff_t const length;
#else
static std::ptrdiff_t const length
= BOOST_PP_SEQ_SIZE(BOOST_UNORDERED_PRIMES);
#endif
};
template<class T>
std::size_t const prime_list_template<T>::value[] = {
BOOST_PP_SEQ_ENUM(BOOST_UNORDERED_PRIMES)
};
#if !defined(SUNPRO_CC)
template<class T>
std::ptrdiff_t const prime_list_template<T>::length
= BOOST_PP_SEQ_SIZE(BOOST_UNORDERED_PRIMES);
#endif
#undef BOOST_UNORDERED_PRIMES
typedef prime_list_template<std::size_t> prime_list;
// no throw
inline std::size_t next_prime(std::size_t num) {
std::size_t const* const prime_list_begin = prime_list::value;
std::size_t const* const prime_list_end = prime_list_begin +
prime_list::length;
std::size_t const* bound =
std::lower_bound(prime_list_begin, prime_list_end, num);
if(bound == prime_list_end)
bound--;
return *bound;
}
// no throw
inline std::size_t prev_prime(std::size_t num) {
std::size_t const* const prime_list_begin = prime_list::value;
std::size_t const* const prime_list_end = prime_list_begin +
prime_list::length;
std::size_t const* bound =
std::upper_bound(prime_list_begin,prime_list_end, num);
if(bound != prime_list_begin)
bound--;
return *bound;
}
////////////////////////////////////////////////////////////////////////////
// pair_cast - because some libraries don't have the full pair constructors.
template <class Dst1, class Dst2, class Src1, class Src2>
inline std::pair<Dst1, Dst2> pair_cast(std::pair<Src1, Src2> const& x)
{
return std::pair<Dst1, Dst2>(Dst1(x.first), Dst2(x.second));
}
////////////////////////////////////////////////////////////////////////////
// insert_size/initial_size
#if !defined(BOOST_NO_STD_DISTANCE)
using ::std::distance;
#else
template <class ForwardIterator>
inline std::size_t distance(ForwardIterator i, ForwardIterator j) {
std::size_t x;
std::distance(i, j, x);
return x;
}
#endif
template <class I>
inline std::size_t insert_size(I i, I j, boost::forward_traversal_tag)
{
return std::distance(i, j);
}
template <class I>
inline std::size_t insert_size(I, I, boost::incrementable_traversal_tag)
{
return 1;
}
template <class I>
inline std::size_t insert_size(I i, I j)
{
BOOST_DEDUCED_TYPENAME boost::iterator_traversal<I>::type
iterator_traversal_tag;
return insert_size(i, j, iterator_traversal_tag);
}
template <class I>
inline std::size_t initial_size(I i, I j,
std::size_t num_buckets = boost::unordered_detail::default_bucket_count)
{
return (std::max)(static_cast<std::size_t>(insert_size(i, j)) + 1,
num_buckets);
}
////////////////////////////////////////////////////////////////////////////
// Node Constructors
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class T, class... Args>
inline void construct_impl(T*, void* address, Args&&... args)
{
new(address) T(std::forward<Args>(args)...);
}
#if defined(BOOST_UNORDERED_CPP0X_PAIR)
template <class First, class Second, class Key, class Arg0, class... Args>
inline void construct_impl(std::pair<First, Second>*, void* address,
Key&& k, Arg0&& arg0, Args&&... args)
)
{
new(address) std::pair<First, Second>(k,
Second(arg0, std::forward<Args>(args)...);
}
#endif
#else
#define BOOST_UNORDERED_CONSTRUCT_IMPL(z, num_params, _) \
template < \
class T, \
BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params) \
> \
inline void construct_impl( \
T*, void* address, \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params) \
) \
{ \
new(address) T( \
BOOST_UNORDERED_CALL_PARAMS(z, num_params)); \
} \
\
template <class First, class Second, class Key, \
BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params) \
> \
inline void construct_impl( \
std::pair<First, Second>*, void* address, \
Key const& k, BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params)) \
{ \
new(address) std::pair<First, Second>(k, \
Second(BOOST_UNORDERED_CALL_PARAMS(z, num_params))); \
}
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT_IMPL, _)
#undef BOOST_UNORDERED_CONSTRUCT_IMPL
#endif
// hash_node_constructor
//
// Used to construct nodes in an exception safe manner.
template <class Alloc, class Grouped>
class hash_node_constructor
{
typedef hash_buckets<Alloc, Grouped> buckets;
typedef BOOST_DEDUCED_TYPENAME buckets::node node;
typedef BOOST_DEDUCED_TYPENAME buckets::real_node_ptr real_node_ptr;
typedef BOOST_DEDUCED_TYPENAME buckets::value_type value_type;
buckets& buckets_;
real_node_ptr node_;
bool node_constructed_;
bool value_constructed_;
public:
hash_node_constructor(buckets& m) :
buckets_(m),
node_(),
node_constructed_(false),
value_constructed_(false)
{
}
~hash_node_constructor();
void construct_preamble();
#if defined(BOOST_UNORDERED_STD_FORWARD)
template <class... Args>
void construct(Args&&... args)
{
construct_preamble();
construct_impl((value_type*) 0, node_->address(),
std::forward<Args>(args)...);
value_constructed_ = true;
}
#else
#define BOOST_UNORDERED_CONSTRUCT(z, num_params, _) \
template < \
BOOST_UNORDERED_TEMPLATE_ARGS(z, num_params) \
> \
void construct( \
BOOST_UNORDERED_FUNCTION_PARAMS(z, num_params) \
) \
{ \
construct_preamble(); \
construct_impl( \
(value_type*) 0, node_->address(), \
BOOST_UNORDERED_CALL_PARAMS(z, num_params) \
); \
value_constructed_ = true; \
}
BOOST_PP_REPEAT_FROM_TO(1, BOOST_UNORDERED_EMPLACE_LIMIT,
BOOST_UNORDERED_CONSTRUCT, _)
#undef BOOST_UNORDERED_CONSTRUCT
#endif
template <class K, class M>
void construct_pair(K const& k, M*)
{
construct_preamble();
new(node_->address()) value_type(k, M());
value_constructed_ = true;
}
value_type& value() const
{
BOOST_ASSERT(node_);
return node_->value();
}
// no throw
BOOST_DEDUCED_TYPENAME buckets::node_ptr release()
{
real_node_ptr p = node_;
node_ = real_node_ptr();
// node_ptr cast
return buckets_.bucket_alloc().address(*p);
}
private:
hash_node_constructor(hash_node_constructor const&);
hash_node_constructor& operator=(hash_node_constructor const&);
};
// hash_node_constructor
template <class Alloc, class Grouped>
inline hash_node_constructor<Alloc, Grouped>::~hash_node_constructor()
{
if (node_) {
if (value_constructed_) {
#if BOOST_WORKAROUND(__CODEGEARC__, BOOST_TESTED_AT(0x0613))
struct dummy { hash_node<Alloc, Grouped> x; };
#endif
boost::unordered_detail::destroy(&node_->value());
}
if (node_constructed_)
buckets_.node_alloc().destroy(node_);
buckets_.node_alloc().deallocate(node_, 1);
}
}
template <class Alloc, class Grouped>
inline void hash_node_constructor<Alloc, Grouped>::construct_preamble()
{
if(!node_) {
node_constructed_ = false;
value_constructed_ = false;
node_ = buckets_.node_alloc().allocate(1);
buckets_.node_alloc().construct(node_, node());
node_constructed_ = true;
}
else {
BOOST_ASSERT(node_constructed_ && value_constructed_);
boost::unordered_detail::destroy(&node_->value());
value_constructed_ = false;
}
}
}}
#endif
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// Copyright (C) 2008-2009 Daniel James.
// 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)
#ifndef BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
#define BOOST_UNORDERED_MAP_FWD_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/config.hpp>
#include <memory>
#include <functional>
#include <boost/functional/hash_fwd.hpp>
namespace boost
{
template <class K,
class T,
class H = hash<K>,
class P = std::equal_to<K>,
class A = std::allocator<std::pair<const K, T> > >
class unordered_map;
template <class K, class T, class H, class P, class A>
bool operator==(unordered_map<K, T, H, P, A> const&,
unordered_map<K, T, H, P, A> const&);
template <class K, class T, class H, class P, class A>
bool operator!=(unordered_map<K, T, H, P, A> const&,
unordered_map<K, T, H, P, A> const&);
template <class K, class T, class H, class P, class A>
void swap(unordered_map<K, T, H, P, A>&,
unordered_map<K, T, H, P, A>&);
template <class K,
class T,
class H = hash<K>,
class P = std::equal_to<K>,
class A = std::allocator<std::pair<const K, T> > >
class unordered_multimap;
template <class K, class T, class H, class P, class A>
bool operator==(unordered_multimap<K, T, H, P, A> const&,
unordered_multimap<K, T, H, P, A> const&);
template <class K, class T, class H, class P, class A>
bool operator!=(unordered_multimap<K, T, H, P, A> const&,
unordered_multimap<K, T, H, P, A> const&);
template <class K, class T, class H, class P, class A>
void swap(unordered_multimap<K, T, H, P, A>&,
unordered_multimap<K, T, H, P, A>&);
}
#endif
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// Copyright (C) 2008-2009 Daniel James.
// 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)
#ifndef BOOST_UNORDERED_SET_FWD_HPP_INCLUDED
#define BOOST_UNORDERED_SET_FWD_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/config.hpp>
#include <memory>
#include <functional>
#include <boost/functional/hash_fwd.hpp>
namespace boost
{
template <class T,
class H = hash<T>,
class P = std::equal_to<T>,
class A = std::allocator<T> >
class unordered_set;
template <class T, class H, class P, class A>
bool operator==(unordered_set<T, H, P, A> const&,
unordered_set<T, H, P, A> const&);
template <class T, class H, class P, class A>
bool operator!=(unordered_set<T, H, P, A> const&,
unordered_set<T, H, P, A> const&);
template <class T, class H, class P, class A>
void swap(unordered_set<T, H, P, A> &m1,
unordered_set<T, H, P, A> &m2);
template <class T,
class H = hash<T>,
class P = std::equal_to<T>,
class A = std::allocator<T> >
class unordered_multiset;
template <class T, class H, class P, class A>
bool operator==(unordered_multiset<T, H, P, A> const&,
unordered_multiset<T, H, P, A> const&);
template <class T, class H, class P, class A>
bool operator!=(unordered_multiset<T, H, P, A> const&,
unordered_multiset<T, H, P, A> const&);
template <class T, class H, class P, class A>
void swap(unordered_multiset<T, H, P, A> &m1,
unordered_multiset<T, H, P, A> &m2);
}
#endif