mirror of
https://github.com/boostorg/unordered.git
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ec1e809fc3
As these are extensions and add extra requirements to the container elements, they shouldn't be part of hash_table_data_* so that they won't get instantiated if an unordered container is explicitly instantiated. Merged revisions 46594-46604 via svnmerge from https://svn.boost.org/svn/boost/branches/unordered/trunk [SVN r46607]
834 lines
23 KiB
C++
834 lines
23 KiB
C++
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// Copyright (C) 2003-2004 Jeremy B. Maitin-Shepard.
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// Copyright (C) 2005-2008 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/unordered for documentation
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#ifndef BOOST_UNORDERED_MAP_HPP_INCLUDED
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#define BOOST_UNORDERED_MAP_HPP_INCLUDED
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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#include <boost/config.hpp>
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#include <functional>
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#include <memory>
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#include <boost/functional/hash.hpp>
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#include <boost/unordered/detail/hash_table.hpp>
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#if !defined(BOOST_HAS_RVALUE_REFS)
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#include <boost/unordered/detail/move.hpp>
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#endif
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namespace boost
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{
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template <class Key,
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class T,
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class Hash = hash<Key>,
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class Pred = std::equal_to<Key>,
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class Alloc = std::allocator<std::pair<const Key, T> > >
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class unordered_map;
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template <class K, class T, class H, class P, class A>
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bool operator==(unordered_map<K, T, H, P, A> const&,
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unordered_map<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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bool operator!=(unordered_map<K, T, H, P, A> const&,
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unordered_map<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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std::size_t hash_value(unordered_map<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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void swap(unordered_map<K, T, H, P, A>&,
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unordered_map<K, T, H, P, A>&);
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template <class Key,
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class T,
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class Hash = hash<Key>,
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class Pred = std::equal_to<Key>,
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class Alloc = std::allocator<std::pair<const Key, T> > >
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class unordered_multimap;
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template <class K, class T, class H, class P, class A>
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bool operator==(unordered_multimap<K, T, H, P, A> const&,
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unordered_multimap<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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bool operator!=(unordered_multimap<K, T, H, P, A> const&,
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unordered_multimap<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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std::size_t hash_value(unordered_multimap<K, T, H, P, A> const&);
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template <class K, class T, class H, class P, class A>
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void swap(unordered_multimap<K, T, H, P, A>&,
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unordered_multimap<K, T, H, P, A>&);
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template <class Key, class T, class Hash, class Pred, class Alloc>
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class unordered_map
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{
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typedef boost::unordered_detail::hash_types_unique_keys<
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std::pair<const Key, T>, Key, Hash, Pred, Alloc
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> implementation;
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BOOST_DEDUCED_TYPENAME implementation::hash_table base;
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public:
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// types
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typedef Key key_type;
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typedef std::pair<const Key, T> value_type;
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typedef T mapped_type;
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typedef Hash hasher;
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typedef Pred key_equal;
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typedef Alloc allocator_type;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::pointer pointer;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::const_pointer const_pointer;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::reference reference;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::const_reference const_reference;
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typedef BOOST_DEDUCED_TYPENAME implementation::size_type size_type;
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typedef BOOST_DEDUCED_TYPENAME implementation::difference_type difference_type;
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typedef BOOST_DEDUCED_TYPENAME implementation::iterator iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::const_iterator const_iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::local_iterator local_iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::const_local_iterator const_local_iterator;
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// construct/destroy/copy
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explicit unordered_map(
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size_type n = boost::unordered_detail::default_initial_bucket_count,
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const hasher &hf = hasher(),
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const key_equal &eql = key_equal(),
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const allocator_type &a = allocator_type())
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: base(n, hf, eql, a)
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{
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}
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// TODO: Should this be explicit?
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unordered_map(allocator_type const& a)
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: base(boost::unordered_detail::default_initial_bucket_count,
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hasher(), key_equal(), a)
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{
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}
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unordered_map(unordered_map const& other, allocator_type const& a)
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: base(other.base, a)
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{
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}
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template <class InputIterator>
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unordered_map(InputIterator f, InputIterator l)
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: base(f, l, boost::unordered_detail::default_initial_bucket_count,
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hasher(), key_equal(), allocator_type())
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{
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}
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template <class InputIterator>
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unordered_map(InputIterator f, InputIterator l,
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size_type n,
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const hasher &hf = hasher(),
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const key_equal &eql = key_equal(),
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const allocator_type &a = allocator_type())
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: base(f, l, n, hf, eql, a)
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{
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}
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#if defined(BOOST_HAS_RVALUE_REFS)
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unordered_map(unordered_map&& other)
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: base(other.base, boost::unordered_detail::move_tag())
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{
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}
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unordered_map(unordered_map&& other, allocator_type const& a)
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: base(other.base, a, boost::unordered_detail::move_tag())
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{
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}
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unordered_map& operator=(unordered_map&& x)
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{
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base.move(x.base);
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return *this;
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}
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#else
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unordered_map(boost::unordered_detail::move_from<unordered_map<Key, T, Hash, Pred, Alloc> > other)
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: base(other.source.base, boost::unordered_detail::move_tag())
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{
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}
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#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0593)
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unordered_map& operator=(unordered_map x)
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{
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base.move(x.base);
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return *this;
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}
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#endif
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#endif
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private:
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BOOST_DEDUCED_TYPENAME implementation::iterator_base const&
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get(const_iterator const& it)
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{
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return boost::unordered_detail::iterator_access::get(it);
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}
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public:
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allocator_type get_allocator() const
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{
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return base.get_allocator();
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}
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// size and capacity
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bool empty() const
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{
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return base.empty();
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}
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size_type size() const
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{
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return base.size();
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}
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size_type max_size() const
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{
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return base.max_size();
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}
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// iterators
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iterator begin()
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{
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return iterator(base.data_.begin());
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}
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const_iterator begin() const
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{
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return const_iterator(base.data_.begin());
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}
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iterator end()
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{
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return iterator(base.data_.end());
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}
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const_iterator end() const
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{
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return const_iterator(base.data_.end());
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}
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const_iterator cbegin() const
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{
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return const_iterator(base.data_.begin());
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}
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const_iterator cend() const
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{
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return const_iterator(base.data_.end());
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}
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// modifiers
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#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
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template <class... Args>
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std::pair<iterator, bool> emplace(Args&&... args)
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{
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return boost::unordered_detail::pair_cast<iterator, bool>(
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base.insert(std::forward<Args>(args)...));
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}
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template <class... Args>
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iterator emplace(const_iterator hint, Args&&... args)
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{
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return iterator(base.insert_hint(get(hint), std::forward<Args>(args)...));
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}
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#endif
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std::pair<iterator, bool> insert(const value_type& obj)
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{
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return boost::unordered_detail::pair_cast<iterator, bool>(
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base.insert(obj));
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}
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iterator insert(const_iterator hint, const value_type& obj)
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{
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return iterator(base.insert_hint(get(hint), obj));
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}
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template <class InputIterator>
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void insert(InputIterator first, InputIterator last)
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{
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base.insert_range(first, last);
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}
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iterator erase(const_iterator position)
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{
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return iterator(base.data_.erase(get(position)));
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}
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size_type erase(const key_type& k)
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{
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return base.erase_key(k);
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}
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iterator erase(const_iterator first, const_iterator last)
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{
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return iterator(base.data_.erase_range(get(first), get(last)));
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}
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void clear()
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{
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base.data_.clear();
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}
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void swap(unordered_map& other)
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{
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base.swap(other.base);
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}
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// observers
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hasher hash_function() const
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{
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return base.hash_function();
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}
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key_equal key_eq() const
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{
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return base.key_eq();
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}
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mapped_type& operator[](const key_type &k)
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{
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return base[k].second;
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}
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mapped_type& at(const key_type& k)
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{
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return base.at(k).second;
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}
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mapped_type const& at(const key_type& k) const
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{
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return base.at(k).second;
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}
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// lookup
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iterator find(const key_type& k)
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{
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return iterator(base.find(k));
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}
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const_iterator find(const key_type& k) const
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{
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return const_iterator(base.find(k));
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}
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size_type count(const key_type& k) const
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{
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return base.count(k);
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}
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std::pair<iterator, iterator>
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equal_range(const key_type& k)
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{
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return boost::unordered_detail::pair_cast<iterator, iterator>(
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base.equal_range(k));
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}
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std::pair<const_iterator, const_iterator>
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equal_range(const key_type& k) const
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{
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return boost::unordered_detail::pair_cast<const_iterator, const_iterator>(
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base.equal_range(k));
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}
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// bucket interface
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size_type bucket_count() const
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{
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return base.bucket_count();
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}
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size_type max_bucket_count() const
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{
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return base.max_bucket_count();
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}
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size_type bucket_size(size_type n) const
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{
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return base.data_.bucket_size(n);
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}
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size_type bucket(const key_type& k) const
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{
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return base.bucket(k);
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}
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local_iterator begin(size_type n)
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{
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return local_iterator(base.data_.begin(n));
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}
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const_local_iterator begin(size_type n) const
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{
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return const_local_iterator(base.data_.begin(n));
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}
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local_iterator end(size_type n)
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{
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return local_iterator(base.data_.end(n));
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}
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const_local_iterator end(size_type n) const
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{
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return const_local_iterator(base.data_.end(n));
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}
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const_local_iterator cbegin(size_type n) const
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{
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return const_local_iterator(base.data_.begin(n));
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}
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const_local_iterator cend(size_type n) const
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{
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return const_local_iterator(base.data_.end(n));
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}
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// hash policy
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float load_factor() const
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{
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return base.load_factor();
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}
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float max_load_factor() const
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{
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return base.max_load_factor();
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}
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void max_load_factor(float m)
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{
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base.max_load_factor(m);
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}
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void rehash(size_type n)
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{
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base.rehash(n);
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}
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friend bool operator==<>(unordered_map const&, unordered_map const&);
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friend bool operator!=<>(unordered_map const&, unordered_map const&);
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friend std::size_t hash_value<>(unordered_map const&);
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}; // class template unordered_map
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template <class K, class T, class H, class P, class A>
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inline bool operator==(unordered_map<K, T, H, P, A> const& m1,
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unordered_map<K, T, H, P, A> const& m2)
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{
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return boost::unordered_detail::equals(m1.base, m2.base);
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}
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template <class K, class T, class H, class P, class A>
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inline bool operator!=(unordered_map<K, T, H, P, A> const& m1,
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unordered_map<K, T, H, P, A> const& m2)
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{
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return !boost::unordered_detail::equals(m1.base, m2.base);
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}
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template <class K, class T, class H, class P, class A>
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inline std::size_t hash_value(unordered_map<K, T, H, P, A> const& m)
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{
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return boost::unordered_detail::hash_value(m.base);
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}
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template <class K, class T, class H, class P, class A>
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inline void swap(unordered_map<K, T, H, P, A> &m1,
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unordered_map<K, T, H, P, A> &m2)
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{
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m1.swap(m2);
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}
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template <class Key, class T, class Hash, class Pred, class Alloc>
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class unordered_multimap
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{
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typedef boost::unordered_detail::hash_types_equivalent_keys<
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std::pair<const Key, T>, Key, Hash, Pred, Alloc
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> implementation;
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BOOST_DEDUCED_TYPENAME implementation::hash_table base;
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public:
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// types
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typedef Key key_type;
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typedef std::pair<const Key, T> value_type;
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typedef T mapped_type;
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typedef Hash hasher;
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typedef Pred key_equal;
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typedef Alloc allocator_type;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::pointer pointer;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::const_pointer const_pointer;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::reference reference;
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typedef BOOST_DEDUCED_TYPENAME allocator_type::const_reference const_reference;
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typedef BOOST_DEDUCED_TYPENAME implementation::size_type size_type;
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typedef BOOST_DEDUCED_TYPENAME implementation::difference_type difference_type;
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typedef BOOST_DEDUCED_TYPENAME implementation::iterator iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::const_iterator const_iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::local_iterator local_iterator;
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typedef BOOST_DEDUCED_TYPENAME implementation::const_local_iterator const_local_iterator;
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// construct/destroy/copy
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explicit unordered_multimap(
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size_type n = boost::unordered_detail::default_initial_bucket_count,
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const hasher &hf = hasher(),
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const key_equal &eql = key_equal(),
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const allocator_type &a = allocator_type())
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: base(n, hf, eql, a)
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{
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}
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unordered_multimap(allocator_type const& a)
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: base(boost::unordered_detail::default_initial_bucket_count,
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hasher(), key_equal(), a)
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{
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}
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unordered_multimap(unordered_multimap const& other, allocator_type const& a)
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: base(other.base, a)
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{
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}
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template <class InputIterator>
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unordered_multimap(InputIterator f, InputIterator l)
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: base(f, l, boost::unordered_detail::default_initial_bucket_count,
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hasher(), key_equal(), allocator_type())
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{
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}
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template <class InputIterator>
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unordered_multimap(InputIterator f, InputIterator l,
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size_type n,
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const hasher &hf = hasher(),
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const key_equal &eql = key_equal(),
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const allocator_type &a = allocator_type())
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: base(f, l, n, hf, eql, a)
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{
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}
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#if defined(BOOST_HAS_RVALUE_REFS)
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unordered_multimap(unordered_multimap&& other)
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: base(other.base, boost::unordered_detail::move_tag())
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{
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}
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unordered_multimap(unordered_multimap&& other, allocator_type const& a)
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: base(other.base, a, boost::unordered_detail::move_tag())
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{
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}
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unordered_multimap& operator=(unordered_multimap&& x)
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{
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base.move(x.base);
|
|
return *this;
|
|
}
|
|
#else
|
|
unordered_multimap(boost::unordered_detail::move_from<unordered_multimap<Key, T, Hash, Pred, Alloc> > other)
|
|
: base(other.source.base, boost::unordered_detail::move_tag())
|
|
{
|
|
}
|
|
|
|
#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0593)
|
|
unordered_multimap& operator=(unordered_multimap x)
|
|
{
|
|
base.move(x.base);
|
|
return *this;
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
|
|
private:
|
|
|
|
BOOST_DEDUCED_TYPENAME implementation::iterator_base const&
|
|
get(const_iterator const& it)
|
|
{
|
|
return boost::unordered_detail::iterator_access::get(it);
|
|
}
|
|
|
|
public:
|
|
|
|
allocator_type get_allocator() const
|
|
{
|
|
return base.get_allocator();
|
|
}
|
|
|
|
// size and capacity
|
|
|
|
bool empty() const
|
|
{
|
|
return base.empty();
|
|
}
|
|
|
|
size_type size() const
|
|
{
|
|
return base.size();
|
|
}
|
|
|
|
size_type max_size() const
|
|
{
|
|
return base.max_size();
|
|
}
|
|
|
|
// iterators
|
|
|
|
iterator begin()
|
|
{
|
|
return iterator(base.data_.begin());
|
|
}
|
|
|
|
const_iterator begin() const
|
|
{
|
|
return const_iterator(base.data_.begin());
|
|
}
|
|
|
|
iterator end()
|
|
{
|
|
return iterator(base.data_.end());
|
|
}
|
|
|
|
const_iterator end() const
|
|
{
|
|
return const_iterator(base.data_.end());
|
|
}
|
|
|
|
const_iterator cbegin() const
|
|
{
|
|
return const_iterator(base.data_.begin());
|
|
}
|
|
|
|
const_iterator cend() const
|
|
{
|
|
return const_iterator(base.data_.end());
|
|
}
|
|
|
|
// modifiers
|
|
|
|
#if defined(BOOST_HAS_RVALUE_REFS) && defined(BOOST_HAS_VARIADIC_TMPL)
|
|
template <class... Args>
|
|
iterator emplace(Args&&... args)
|
|
{
|
|
return iterator(base.insert(std::forward<Args>(args)...));
|
|
}
|
|
|
|
template <class... Args>
|
|
iterator emplace(const_iterator hint, Args&&... args)
|
|
{
|
|
return iterator(base.insert_hint(get(hint), std::forward<Args>(args)...));
|
|
}
|
|
#endif
|
|
|
|
iterator insert(const value_type& obj)
|
|
{
|
|
return iterator(base.insert(obj));
|
|
}
|
|
|
|
iterator insert(const_iterator hint, const value_type& obj)
|
|
{
|
|
return iterator(base.insert_hint(get(hint), obj));
|
|
}
|
|
|
|
template <class InputIterator>
|
|
void insert(InputIterator first, InputIterator last)
|
|
{
|
|
base.insert_range(first, last);
|
|
}
|
|
|
|
iterator erase(const_iterator position)
|
|
{
|
|
return iterator(base.data_.erase(get(position)));
|
|
}
|
|
|
|
size_type erase(const key_type& k)
|
|
{
|
|
return base.erase_key(k);
|
|
}
|
|
|
|
iterator erase(const_iterator first, const_iterator last)
|
|
{
|
|
return iterator(base.data_.erase_range(get(first), get(last)));
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
base.data_.clear();
|
|
}
|
|
|
|
void swap(unordered_multimap& other)
|
|
{
|
|
base.swap(other.base);
|
|
}
|
|
|
|
// observers
|
|
|
|
hasher hash_function() const
|
|
{
|
|
return base.hash_function();
|
|
}
|
|
|
|
key_equal key_eq() const
|
|
{
|
|
return base.key_eq();
|
|
}
|
|
|
|
// lookup
|
|
|
|
iterator find(const key_type& k)
|
|
{
|
|
return iterator(base.find(k));
|
|
}
|
|
|
|
const_iterator find(const key_type& k) const
|
|
{
|
|
return const_iterator(base.find(k));
|
|
}
|
|
|
|
size_type count(const key_type& k) const
|
|
{
|
|
return base.count(k);
|
|
}
|
|
|
|
std::pair<iterator, iterator>
|
|
equal_range(const key_type& k)
|
|
{
|
|
return boost::unordered_detail::pair_cast<iterator, iterator>(
|
|
base.equal_range(k));
|
|
}
|
|
|
|
std::pair<const_iterator, const_iterator>
|
|
equal_range(const key_type& k) const
|
|
{
|
|
return boost::unordered_detail::pair_cast<const_iterator, const_iterator>(
|
|
base.equal_range(k));
|
|
}
|
|
|
|
// bucket interface
|
|
|
|
size_type bucket_count() const
|
|
{
|
|
return base.bucket_count();
|
|
}
|
|
|
|
size_type max_bucket_count() const
|
|
{
|
|
return base.max_bucket_count();
|
|
}
|
|
|
|
size_type bucket_size(size_type n) const
|
|
{
|
|
return base.data_.bucket_size(n);
|
|
}
|
|
|
|
size_type bucket(const key_type& k) const
|
|
{
|
|
return base.bucket(k);
|
|
}
|
|
|
|
local_iterator begin(size_type n)
|
|
{
|
|
return local_iterator(base.data_.begin(n));
|
|
}
|
|
|
|
const_local_iterator begin(size_type n) const
|
|
{
|
|
return const_local_iterator(base.data_.begin(n));
|
|
}
|
|
|
|
local_iterator end(size_type n)
|
|
{
|
|
return local_iterator(base.data_.end(n));
|
|
}
|
|
|
|
const_local_iterator end(size_type n) const
|
|
{
|
|
return const_local_iterator(base.data_.end(n));
|
|
}
|
|
|
|
const_local_iterator cbegin(size_type n) const
|
|
{
|
|
return const_local_iterator(base.data_.begin(n));
|
|
}
|
|
|
|
const_local_iterator cend(size_type n) const
|
|
{
|
|
return const_local_iterator(base.data_.end(n));
|
|
}
|
|
|
|
// hash policy
|
|
|
|
float load_factor() const
|
|
{
|
|
return base.load_factor();
|
|
}
|
|
|
|
float max_load_factor() const
|
|
{
|
|
return base.max_load_factor();
|
|
}
|
|
|
|
void max_load_factor(float m)
|
|
{
|
|
base.max_load_factor(m);
|
|
}
|
|
|
|
void rehash(size_type n)
|
|
{
|
|
base.rehash(n);
|
|
}
|
|
|
|
friend bool operator==<>(unordered_multimap const&, unordered_multimap const&);
|
|
friend bool operator!=<>(unordered_multimap const&, unordered_multimap const&);
|
|
friend std::size_t hash_value<>(unordered_multimap const&);
|
|
}; // class template unordered_multimap
|
|
|
|
template <class K, class T, class H, class P, class A>
|
|
inline bool operator==(unordered_multimap<K, T, H, P, A> const& m1,
|
|
unordered_multimap<K, T, H, P, A> const& m2)
|
|
{
|
|
return boost::unordered_detail::equals(m1.base, m2.base);
|
|
}
|
|
|
|
template <class K, class T, class H, class P, class A>
|
|
inline bool operator!=(unordered_multimap<K, T, H, P, A> const& m1,
|
|
unordered_multimap<K, T, H, P, A> const& m2)
|
|
{
|
|
return !boost::unordered_detail::equals(m1.base, m2.base);
|
|
}
|
|
|
|
template <class K, class T, class H, class P, class A>
|
|
inline std::size_t hash_value(unordered_multimap<K, T, H, P, A> const& m)
|
|
{
|
|
return boost::unordered_detail::hash_value(m.base);
|
|
}
|
|
|
|
template <class K, class T, class H, class P, class A>
|
|
inline void swap(unordered_multimap<K, T, H, P, A> &m1,
|
|
unordered_multimap<K, T, H, P, A> &m2)
|
|
{
|
|
m1.swap(m2);
|
|
}
|
|
|
|
} // namespace boost
|
|
|
|
#endif // BOOST_UNORDERED_MAP_HPP_INCLUDED
|