feedc0de/boost_container
1
0
Fork 0
forked from boostorg/container
Code Pull Requests Activity
Files
ac4dde2c6e1b565100d7426b4fe4d8abef735340
boost_container/include/boost/container/flat_map.hpp

1758 lines
74 KiB
C++
Raw Blame History

//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2013. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_CONTAINER_FLAT_MAP_HPP
#define BOOST_CONTAINER_FLAT_MAP_HPP
#if defined(_MSC_VER)
# pragma once
#endif
#include <boost/container/detail/config_begin.hpp>
#include <boost/container/detail/workaround.hpp>
#include <boost/container/container_fwd.hpp>
#include <utility>
#include <functional>
#include <memory>
#include <boost/container/detail/flat_tree.hpp>
#include <boost/type_traits/has_trivial_destructor.hpp>
#include <boost/container/detail/mpl.hpp>
#include <boost/container/allocator_traits.hpp>
#include <boost/container/throw_exception.hpp>
#include <boost/move/utility.hpp>
#include <boost/move/detail/move_helpers.hpp>
#include <boost/detail/no_exceptions_support.hpp>
namespace boost {
namespace container {
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
namespace container_detail{
template<class D, class S>
static D &force(const S &s)
{ return *const_cast<D*>((reinterpret_cast<const D*>(&s))); }
template<class D, class S>
static D force_copy(S s)
{
D *vp = reinterpret_cast<D *>(&s);
return D(*vp);
}
} //namespace container_detail{
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
//! A flat_map is a kind of associative container that supports unique keys (contains at
//! most one of each key value) and provides for fast retrieval of values of another
//! type T based on the keys. The flat_map class supports random-access iterators.
//!
//! A flat_map satisfies all of the requirements of a container and of a reversible
//! container and of an associative container. A flat_map also provides
//! most operations described for unique keys. For a
//! flat_map<Key,T> the key_type is Key and the value_type is std::pair<Key,T>
//! (unlike std::map<Key, T> which value_type is std::pair<<b>const</b> Key, T>).
//!
//! Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//!
//! Allocator is the allocator to allocate the value_types
//! (e.g. <i>allocator< std::pair<Key, T> ></i>).
//!
//! flat_map is similar to std::map but it's implemented like an ordered vector.
//! This means that inserting a new element into a flat_map invalidates
//! previous iterators and references
//!
//! Erasing an element invalidates iterators and references
//! pointing to elements that come after (their keys are bigger) the erased element.
//!
//! This container provides random-access iterators.
//!
//! \tparam Key is the key_type of the map
//! \tparam Value is the <code>mapped_type</code>
//! \tparam Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//! \tparam Allocator is the allocator to allocate the <code>value_type</code>s
//! (e.g. <i>allocator< std::pair<Key, T> > </i>).
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class Key, class T, class Compare = std::less<Key>, class Allocator = std::allocator< std::pair< Key, T> > >
#else
template <class Key, class T, class Compare, class Allocator>
#endif
class flat_map
{
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
BOOST_COPYABLE_AND_MOVABLE(flat_map)
//This is the tree that we should store if pair was movable
typedef container_detail::flat_tree<Key,
std::pair<Key, T>,
container_detail::select1st< std::pair<Key, T> >,
Compare,
Allocator> tree_t;
//This is the real tree stored here. It's based on a movable pair
typedef container_detail::flat_tree<Key,
container_detail::pair<Key, T>,
container_detail::select1st<container_detail::pair<Key, T> >,
Compare,
typename allocator_traits<Allocator>::template portable_rebind_alloc
<container_detail::pair<Key, T> >::type> impl_tree_t;
impl_tree_t m_flat_tree; // flat tree representing flat_map
typedef typename impl_tree_t::value_type impl_value_type;
typedef typename impl_tree_t::const_iterator impl_const_iterator;
typedef typename impl_tree_t::allocator_type impl_allocator_type;
typedef container_detail::flat_tree_value_compare
< Compare
, container_detail::select1st< std::pair<Key, T> >
, std::pair<Key, T> > value_compare_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::iterator iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::const_iterator const_iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::reverse_iterator reverse_iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::const_reverse_iterator const_reverse_iterator_impl;
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
public:
//////////////////////////////////////////////
//
// types
//
//////////////////////////////////////////////
typedef Key key_type;
typedef T mapped_type;
typedef std::pair<Key, T> value_type;
typedef ::boost::container::allocator_traits<Allocator> allocator_traits_type;
typedef typename boost::container::allocator_traits<Allocator>::pointer pointer;
typedef typename boost::container::allocator_traits<Allocator>::const_pointer const_pointer;
typedef typename boost::container::allocator_traits<Allocator>::reference reference;
typedef typename boost::container::allocator_traits<Allocator>::const_reference const_reference;
typedef typename boost::container::allocator_traits<Allocator>::size_type size_type;
typedef typename boost::container::allocator_traits<Allocator>::difference_type difference_type;
typedef Allocator allocator_type;
typedef BOOST_CONTAINER_IMPDEF(Allocator) stored_allocator_type;
typedef BOOST_CONTAINER_IMPDEF(value_compare_impl) value_compare;
typedef Compare key_compare;
typedef BOOST_CONTAINER_IMPDEF(iterator_impl) iterator;
typedef BOOST_CONTAINER_IMPDEF(const_iterator_impl) const_iterator;
typedef BOOST_CONTAINER_IMPDEF(reverse_iterator_impl) reverse_iterator;
typedef BOOST_CONTAINER_IMPDEF(const_reverse_iterator_impl) const_reverse_iterator;
typedef BOOST_CONTAINER_IMPDEF(impl_value_type) movable_value_type;
public:
//////////////////////////////////////////////
//
// construct/copy/destroy
//
//////////////////////////////////////////////
//! <b>Effects</b>: Default constructs an empty flat_map.
//!
//! <b>Complexity</b>: Constant.
flat_map()
: m_flat_tree()
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_map using the specified
//! comparison object and allocator.
//!
//! <b>Complexity</b>: Constant.
explicit flat_map(const Compare& comp, const allocator_type& a = allocator_type())
: m_flat_tree(comp, container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_map using the specified allocator.
//!
//! <b>Complexity</b>: Constant.
explicit flat_map(const allocator_type& a)
: m_flat_tree(container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_map using the specified comparison object and
//! allocator, and inserts elements from the range [first ,last ).
//!
//! <b>Complexity</b>: Linear in N if the range [first ,last ) is already sorted using
//! comp and otherwise N logN, where N is last - first.
template <class InputIterator>
flat_map(InputIterator first, InputIterator last, const Compare& comp = Compare(),
const allocator_type& a = allocator_type())
: m_flat_tree(true, first, last, comp, container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_map using the specified comparison object and
//! allocator, and inserts elements from the ordered unique range [first ,last). This function
//! is more efficient than the normal range creation for ordered ranges.
//!
//! <b>Requires</b>: [first ,last) must be ordered according to the predicate and must be
//! unique values.
//!
//! <b>Complexity</b>: Linear in N.
//!
//! <b>Note</b>: Non-standard extension.
template <class InputIterator>
flat_map( ordered_unique_range_t, InputIterator first, InputIterator last
, const Compare& comp = Compare(), const allocator_type& a = allocator_type())
: m_flat_tree(ordered_range, first, last, comp, a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Copy constructs a flat_map.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_map(const flat_map& x)
: m_flat_tree(x.m_flat_tree)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Move constructs a flat_map.
//! Constructs *this using x's resources.
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Postcondition</b>: x is emptied.
flat_map(BOOST_RV_REF(flat_map) x)
: m_flat_tree(boost::move(x.m_flat_tree))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Copy constructs a flat_map using the specified allocator.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_map(const flat_map& x, const allocator_type &a)
: m_flat_tree(x.m_flat_tree, a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Move constructs a flat_map using the specified allocator.
//! Constructs *this using x's resources.
//!
//! <b>Complexity</b>: Constant if x.get_allocator() == a, linear otherwise.
flat_map(BOOST_RV_REF(flat_map) x, const allocator_type &a)
: m_flat_tree(boost::move(x.m_flat_tree), a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Makes *this a copy of x.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_map& operator=(BOOST_COPY_ASSIGN_REF(flat_map) x)
{ m_flat_tree = x.m_flat_tree; return *this; }
//! <b>Effects</b>: Move constructs a flat_map.
//! Constructs *this using x's resources.
//!
//! <b>Throws</b>: If allocator_traits_type::propagate_on_container_move_assignment
//! is false and (allocation throws or value_type's move constructor throws)
//!
//! <b>Complexity</b>: Constant if allocator_traits_type::
//! propagate_on_container_move_assignment is true or
//! this->get>allocator() == x.get_allocator(). Linear otherwise.
flat_map& operator=(BOOST_RV_REF(flat_map) x)
BOOST_CONTAINER_NOEXCEPT_IF(allocator_traits_type::propagate_on_container_move_assignment::value)
{ m_flat_tree = boost::move(x.m_flat_tree); return *this; }
//! <b>Effects</b>: Returns a copy of the Allocator that
//! was passed to the object's constructor.
//!
//! <b>Complexity</b>: Constant.
allocator_type get_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<allocator_type>(m_flat_tree.get_allocator()); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
stored_allocator_type &get_stored_allocator() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force<stored_allocator_type>(m_flat_tree.get_stored_allocator()); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
const stored_allocator_type &get_stored_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force<stored_allocator_type>(m_flat_tree.get_stored_allocator()); }
//////////////////////////////////////////////
//
// iterators
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns an iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator begin() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<iterator>(m_flat_tree.begin()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator begin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.begin()); }
//! <b>Effects</b>: Returns an iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator end() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<iterator>(m_flat_tree.end()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator end() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.end()); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rbegin() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<reverse_iterator>(m_flat_tree.rbegin()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.rbegin()); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rend() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<reverse_iterator>(m_flat_tree.rend()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.rend()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.cbegin()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.cend()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.crbegin()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.crend()); }
//////////////////////////////////////////////
//
// capacity
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns true if the container contains no elements.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
bool empty() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.empty(); }
//! <b>Effects</b>: Returns the number of the elements contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type size() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.size(); }
//! <b>Effects</b>: Returns the largest possible size of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type max_size() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.max_size(); }
//! <b>Effects</b>: Number of elements for which memory has been allocated.
//! capacity() is always greater than or equal to size().
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type capacity() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.capacity(); }
//! <b>Effects</b>: If n is less than or equal to capacity(), this call has no
//! effect. Otherwise, it is a request for allocation of additional memory.
//! If the request is successful, then capacity() is greater than or equal to
//! n; otherwise, capacity() is unchanged. In either case, size() is unchanged.
//!
//! <b>Throws</b>: If memory allocation allocation throws or T's copy constructor throws.
//!
//! <b>Note</b>: If capacity() is less than "cnt", iterators and references to
//! to values might be invalidated.
void reserve(size_type cnt)
{ m_flat_tree.reserve(cnt); }
//! <b>Effects</b>: Tries to deallocate the excess of memory created
// with previous allocations. The size of the vector is unchanged
//!
//! <b>Throws</b>: If memory allocation throws, or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to size().
void shrink_to_fit()
{ m_flat_tree.shrink_to_fit(); }
//////////////////////////////////////////////
//
// element access
//
//////////////////////////////////////////////
#if defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! Effects: If there is no key equivalent to x in the flat_map, inserts
//! value_type(x, T()) into the flat_map.
//!
//! Returns: Allocator reference to the mapped_type corresponding to x in *this.
//!
//! Complexity: Logarithmic.
mapped_type &operator[](const key_type& k);
//! Effects: If there is no key equivalent to x in the flat_map, inserts
//! value_type(move(x), T()) into the flat_map (the key is move-constructed)
//!
//! Returns: Allocator reference to the mapped_type corresponding to x in *this.
//!
//! Complexity: Logarithmic.
mapped_type &operator[](key_type &&k) ;
#else
BOOST_MOVE_CONVERSION_AWARE_CATCH( operator[] , key_type, mapped_type&, this->priv_subscript)
#endif
//! Returns: Allocator reference to the element whose key is equivalent to x.
//!
//! Throws: An exception object of type out_of_range if no such element is present.
//!
//! Complexity: logarithmic.
T& at(const key_type& k)
{
iterator i = this->find(k);
if(i == this->end()){
throw_out_of_range("flat_map::at key not found");
}
return i->second;
}
//! Returns: Allocator reference to the element whose key is equivalent to x.
//!
//! Throws: An exception object of type out_of_range if no such element is present.
//!
//! Complexity: logarithmic.
const T& at(const key_type& k) const
{
const_iterator i = this->find(k);
if(i == this->end()){
throw_out_of_range("flat_map::at key not found");
}
return i->second;
}
//////////////////////////////////////////////
//
// modifiers
//
//////////////////////////////////////////////
#if defined(BOOST_CONTAINER_PERFECT_FORWARDING) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Effects</b>: Inserts an object x of type T constructed with
//! std::forward<Args>(args)... if and only if there is no element in the container
//! with key equivalent to the key of x.
//!
//! <b>Returns</b>: The bool component of the returned pair is true if and only
//! if the insertion takes place, and the iterator component of the pair
//! points to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class... Args>
std::pair<iterator,bool> emplace(Args&&... args)
{ return container_detail::force_copy< std::pair<iterator, bool> >(m_flat_tree.emplace_unique(boost::forward<Args>(args)...)); }
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... in the container if and only if there is
//! no element in the container with key equivalent to the key of x.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant if x is inserted
//! right before p) plus insertion linear to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class... Args>
iterator emplace_hint(const_iterator hint, Args&&... args)
{
return container_detail::force_copy<iterator>
(m_flat_tree.emplace_hint_unique( container_detail::force_copy<impl_const_iterator>(hint)
, boost::forward<Args>(args)...));
}
#else //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
#define BOOST_PP_LOCAL_MACRO(n) \
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
std::pair<iterator,bool> emplace(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
{ return container_detail::force_copy< std::pair<iterator, bool> > \
(m_flat_tree.emplace_unique(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); } \
\
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
iterator emplace_hint(const_iterator hint \
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
{ return container_detail::force_copy<iterator>(m_flat_tree.emplace_hint_unique \
(container_detail::force_copy<impl_const_iterator>(hint) \
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); } \
//!
#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
#include BOOST_PP_LOCAL_ITERATE()
#endif //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
//! <b>Effects</b>: Inserts x if and only if there is no element in the container
//! with key equivalent to the key of x.
//!
//! <b>Returns</b>: The bool component of the returned pair is true if and only
//! if the insertion takes place, and the iterator component of the pair
//! points to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
std::pair<iterator,bool> insert(const value_type& x)
{ return container_detail::force_copy<std::pair<iterator,bool> >(
m_flat_tree.insert_unique(container_detail::force<impl_value_type>(x))); }
//! <b>Effects</b>: Inserts a new value_type move constructed from the pair if and
//! only if there is no element in the container with key equivalent to the key of x.
//!
//! <b>Returns</b>: The bool component of the returned pair is true if and only
//! if the insertion takes place, and the iterator component of the pair
//! points to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
std::pair<iterator,bool> insert(BOOST_RV_REF(value_type) x)
{ return container_detail::force_copy<std::pair<iterator,bool> >(
m_flat_tree.insert_unique(boost::move(container_detail::force<impl_value_type>(x)))); }
//! <b>Effects</b>: Inserts a new value_type move constructed from the pair if and
//! only if there is no element in the container with key equivalent to the key of x.
//!
//! <b>Returns</b>: The bool component of the returned pair is true if and only
//! if the insertion takes place, and the iterator component of the pair
//! points to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
std::pair<iterator,bool> insert(BOOST_RV_REF(movable_value_type) x)
{
return container_detail::force_copy<std::pair<iterator,bool> >
(m_flat_tree.insert_unique(boost::move(x)));
}
//! <b>Effects</b>: Inserts a copy of x in the container if and only if there is
//! no element in the container with key equivalent to the key of x.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant if x is inserted
//! right before p) plus insertion linear to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, const value_type& x)
{
return container_detail::force_copy<iterator>(
m_flat_tree.insert_unique( container_detail::force_copy<impl_const_iterator>(p)
, container_detail::force<impl_value_type>(x)));
}
//! <b>Effects</b>: Inserts an element move constructed from x in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant if x is inserted
//! right before p) plus insertion linear to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, BOOST_RV_REF(value_type) x)
{
return container_detail::force_copy<iterator>
(m_flat_tree.insert_unique( container_detail::force_copy<impl_const_iterator>(p)
, boost::move(container_detail::force<impl_value_type>(x))));
}
//! <b>Effects</b>: Inserts an element move constructed from x in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant if x is inserted
//! right before p) plus insertion linear to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, BOOST_RV_REF(movable_value_type) x)
{
return container_detail::force_copy<iterator>(
m_flat_tree.insert_unique(container_detail::force_copy<impl_const_iterator>(p), boost::move(x)));
}
//! <b>Requires</b>: first, last are not iterators into *this.
//!
//! <b>Effects</b>: inserts each element from the range [first,last) if and only
//! if there is no element with key equivalent to the key of that element.
//!
//! <b>Complexity</b>: At most N log(size()+N) (N is the distance from first to last)
//! search time plus N*size() insertion time.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class InputIterator>
void insert(InputIterator first, InputIterator last)
{ m_flat_tree.insert_unique(first, last); }
//! <b>Requires</b>: first, last are not iterators into *this.
//!
//! <b>Requires</b>: [first ,last) must be ordered according to the predicate and must be
//! unique values.
//!
//! <b>Effects</b>: inserts each element from the range [first,last) if and only
//! if there is no element with key equivalent to the key of that element. This
//! function is more efficient than the normal range creation for ordered ranges.
//!
//! <b>Complexity</b>: At most N log(size()+N) (N is the distance from first to last)
//! search time plus N*size() insertion time.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
//!
//! <b>Note</b>: Non-standard extension.
template <class InputIterator>
void insert(ordered_unique_range_t, InputIterator first, InputIterator last)
{ m_flat_tree.insert_unique(ordered_unique_range, first, last); }
//! <b>Effects</b>: Erases the element pointed to by p.
//!
//! <b>Returns</b>: Returns an iterator pointing to the element immediately
//! following q prior to the element being erased. If no such element exists,
//! returns end().
//!
//! <b>Complexity</b>: Linear to the elements with keys bigger than p
//!
//! <b>Note</b>: Invalidates elements with keys
//! not less than the erased element.
iterator erase(const_iterator p)
{
return container_detail::force_copy<iterator>
(m_flat_tree.erase(container_detail::force_copy<impl_const_iterator>(p)));
}
//! <b>Effects</b>: Erases all elements in the container with key equivalent to x.
//!
//! <b>Returns</b>: Returns the number of erased elements.
//!
//! <b>Complexity</b>: Logarithmic search time plus erasure time
//! linear to the elements with bigger keys.
size_type erase(const key_type& x)
{ return m_flat_tree.erase(x); }
//! <b>Effects</b>: Erases all the elements in the range [first, last).
//!
//! <b>Returns</b>: Returns last.
//!
//! <b>Complexity</b>: size()*N where N is the distance from first to last.
//!
//! <b>Complexity</b>: Logarithmic search time plus erasure time
//! linear to the elements with bigger keys.
iterator erase(const_iterator first, const_iterator last)
{
return container_detail::force_copy<iterator>(
m_flat_tree.erase( container_detail::force_copy<impl_const_iterator>(first)
, container_detail::force_copy<impl_const_iterator>(last)));
}
//! <b>Effects</b>: Swaps the contents of *this and x.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
void swap(flat_map& x)
{ m_flat_tree.swap(x.m_flat_tree); }
//! <b>Effects</b>: erase(a.begin(),a.end()).
//!
//! <b>Postcondition</b>: size() == 0.
//!
//! <b>Complexity</b>: linear in size().
void clear() BOOST_CONTAINER_NOEXCEPT
{ m_flat_tree.clear(); }
//////////////////////////////////////////////
//
// observers
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns the comparison object out
//! of which a was constructed.
//!
//! <b>Complexity</b>: Constant.
key_compare key_comp() const
{ return container_detail::force_copy<key_compare>(m_flat_tree.key_comp()); }
//! <b>Effects</b>: Returns an object of value_compare constructed out
//! of the comparison object.
//!
//! <b>Complexity</b>: Constant.
value_compare value_comp() const
{ return value_compare(container_detail::force_copy<key_compare>(m_flat_tree.key_comp())); }
//////////////////////////////////////////////
//
// map operations
//
//////////////////////////////////////////////
//! <b>Returns</b>: An iterator pointing to an element with the key
//! equivalent to x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic.
iterator find(const key_type& x)
{ return container_detail::force_copy<iterator>(m_flat_tree.find(x)); }
//! <b>Returns</b>: Allocator const_iterator pointing to an element with the key
//! equivalent to x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic.s
const_iterator find(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.find(x)); }
//! <b>Returns</b>: The number of elements with key equivalent to x.
//!
//! <b>Complexity</b>: log(size())+count(k)
size_type count(const key_type& x) const
{ return static_cast<size_type>(m_flat_tree.find(x) != m_flat_tree.end()); }
//! <b>Returns</b>: An iterator pointing to the first element with key not less
//! than k, or a.end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
iterator lower_bound(const key_type& x)
{ return container_detail::force_copy<iterator>(m_flat_tree.lower_bound(x)); }
//! <b>Returns</b>: Allocator const iterator pointing to the first element with key not
//! less than k, or a.end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
const_iterator lower_bound(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.lower_bound(x)); }
//! <b>Returns</b>: An iterator pointing to the first element with key not less
//! than x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
iterator upper_bound(const key_type& x)
{ return container_detail::force_copy<iterator>(m_flat_tree.upper_bound(x)); }
//! <b>Returns</b>: Allocator const iterator pointing to the first element with key not
//! less than x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
const_iterator upper_bound(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.upper_bound(x)); }
//! <b>Effects</b>: Equivalent to std::make_pair(this->lower_bound(k), this->upper_bound(k)).
//!
//! <b>Complexity</b>: Logarithmic
std::pair<iterator,iterator> equal_range(const key_type& x)
{ return container_detail::force_copy<std::pair<iterator,iterator> >(m_flat_tree.lower_bound_range(x)); }
//! <b>Effects</b>: Equivalent to std::make_pair(this->lower_bound(k), this->upper_bound(k)).
//!
//! <b>Complexity</b>: Logarithmic
std::pair<const_iterator,const_iterator> equal_range(const key_type& x) const
{ return container_detail::force_copy<std::pair<const_iterator,const_iterator> >(m_flat_tree.lower_bound_range(x)); }
//! <b>Effects</b>: Returns true if x and y are equal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator==(const flat_map& x, const flat_map& y)
{ return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); }
//! <b>Effects</b>: Returns true if x and y are unequal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator!=(const flat_map& x, const flat_map& y)
{ return !(x == y); }
//! <b>Effects</b>: Returns true if x is less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<(const flat_map& x, const flat_map& y)
{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
//! <b>Effects</b>: Returns true if x is greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>(const flat_map& x, const flat_map& y)
{ return y < x; }
//! <b>Effects</b>: Returns true if x is equal or less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<=(const flat_map& x, const flat_map& y)
{ return !(y < x); }
//! <b>Effects</b>: Returns true if x is equal or greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>=(const flat_map& x, const flat_map& y)
{ return !(x < y); }
//! <b>Effects</b>: x.swap(y)
//!
//! <b>Complexity</b>: Constant.
friend void swap(flat_map& x, flat_map& y)
{ x.swap(y); }
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
mapped_type &priv_subscript(const key_type& k)
{
iterator i = lower_bound(k);
// i->first is greater than or equivalent to k.
if (i == end() || key_comp()(k, (*i).first)){
container_detail::value_init<mapped_type> m;
i = insert(i, impl_value_type(k, ::boost::move(m.m_t)));
}
return (*i).second;
}
mapped_type &priv_subscript(BOOST_RV_REF(key_type) mk)
{
key_type &k = mk;
iterator i = lower_bound(k);
// i->first is greater than or equivalent to k.
if (i == end() || key_comp()(k, (*i).first)){
container_detail::value_init<mapped_type> m;
i = insert(i, impl_value_type(boost::move(k), ::boost::move(m.m_t)));
}
return (*i).second;
}
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
};
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
} //namespace container {
//!has_trivial_destructor_after_move<> == true_type
//!specialization for optimizations
template <class K, class T, class C, class Allocator>
struct has_trivial_destructor_after_move<boost::container::flat_map<K, T, C, Allocator> >
{
static const bool value = has_trivial_destructor_after_move<Allocator>::value && has_trivial_destructor_after_move<C>::value;
};
namespace container {
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
//! A flat_multimap is a kind of associative container that supports equivalent keys
//! (possibly containing multiple copies of the same key value) and provides for
//! fast retrieval of values of another type T based on the keys. The flat_multimap
//! class supports random-access iterators.
//!
//! A flat_multimap satisfies all of the requirements of a container and of a reversible
//! container and of an associative container. For a
//! flat_multimap<Key,T> the key_type is Key and the value_type is std::pair<Key,T>
//! (unlike std::multimap<Key, T> which value_type is std::pair<<b>const</b> Key, T>).
//!
//! Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//!
//! Allocator is the allocator to allocate the value_types
//! (e.g. <i>allocator< std::pair<Key, T> ></i>).
//!
//! flat_multimap is similar to std::multimap but it's implemented like an ordered vector.
//! This means that inserting a new element into a flat_map invalidates
//! previous iterators and references
//!
//! Erasing an element invalidates iterators and references
//! pointing to elements that come after (their keys are bigger) the erased element.
//!
//! This container provides random-access iterators.
//!
//! \tparam Key is the key_type of the map
//! \tparam Value is the <code>mapped_type</code>
//! \tparam Compare is the ordering function for Keys (e.g. <i>std::less<Key></i>).
//! \tparam Allocator is the allocator to allocate the <code>value_type</code>s
//! (e.g. <i>allocator< std::pair<Key, T> > </i>).
#ifdef BOOST_CONTAINER_DOXYGEN_INVOKED
template <class Key, class T, class Compare = std::less<Key>, class Allocator = std::allocator< std::pair< Key, T> > >
#else
template <class Key, class T, class Compare, class Allocator>
#endif
class flat_multimap
{
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
private:
BOOST_COPYABLE_AND_MOVABLE(flat_multimap)
typedef container_detail::flat_tree<Key,
std::pair<Key, T>,
container_detail::select1st< std::pair<Key, T> >,
Compare,
Allocator> tree_t;
//This is the real tree stored here. It's based on a movable pair
typedef container_detail::flat_tree<Key,
container_detail::pair<Key, T>,
container_detail::select1st<container_detail::pair<Key, T> >,
Compare,
typename allocator_traits<Allocator>::template portable_rebind_alloc
<container_detail::pair<Key, T> >::type> impl_tree_t;
impl_tree_t m_flat_tree; // flat tree representing flat_map
typedef typename impl_tree_t::value_type impl_value_type;
typedef typename impl_tree_t::const_iterator impl_const_iterator;
typedef typename impl_tree_t::allocator_type impl_allocator_type;
typedef container_detail::flat_tree_value_compare
< Compare
, container_detail::select1st< std::pair<Key, T> >
, std::pair<Key, T> > value_compare_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::iterator iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::const_iterator const_iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::reverse_iterator reverse_iterator_impl;
typedef typename container_detail::get_flat_tree_iterators
<typename allocator_traits<Allocator>::pointer>::const_reverse_iterator const_reverse_iterator_impl;
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
public:
//////////////////////////////////////////////
//
// types
//
//////////////////////////////////////////////
typedef Key key_type;
typedef T mapped_type;
typedef std::pair<Key, T> value_type;
typedef ::boost::container::allocator_traits<Allocator> allocator_traits_type;
typedef typename boost::container::allocator_traits<Allocator>::pointer pointer;
typedef typename boost::container::allocator_traits<Allocator>::const_pointer const_pointer;
typedef typename boost::container::allocator_traits<Allocator>::reference reference;
typedef typename boost::container::allocator_traits<Allocator>::const_reference const_reference;
typedef typename boost::container::allocator_traits<Allocator>::size_type size_type;
typedef typename boost::container::allocator_traits<Allocator>::difference_type difference_type;
typedef Allocator allocator_type;
typedef BOOST_CONTAINER_IMPDEF(Allocator) stored_allocator_type;
typedef BOOST_CONTAINER_IMPDEF(value_compare_impl) value_compare;
typedef Compare key_compare;
typedef BOOST_CONTAINER_IMPDEF(iterator_impl) iterator;
typedef BOOST_CONTAINER_IMPDEF(const_iterator_impl) const_iterator;
typedef BOOST_CONTAINER_IMPDEF(reverse_iterator_impl) reverse_iterator;
typedef BOOST_CONTAINER_IMPDEF(const_reverse_iterator_impl) const_reverse_iterator;
typedef BOOST_CONTAINER_IMPDEF(impl_value_type) movable_value_type;
//////////////////////////////////////////////
//
// construct/copy/destroy
//
//////////////////////////////////////////////
//! <b>Effects</b>: Default constructs an empty flat_map.
//!
//! <b>Complexity</b>: Constant.
flat_multimap()
: m_flat_tree()
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_multimap using the specified comparison
//! object and allocator.
//!
//! <b>Complexity</b>: Constant.
explicit flat_multimap(const Compare& comp,
const allocator_type& a = allocator_type())
: m_flat_tree(comp, container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_multimap using the specified allocator.
//!
//! <b>Complexity</b>: Constant.
explicit flat_multimap(const allocator_type& a)
: m_flat_tree(container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_multimap using the specified comparison object
//! and allocator, and inserts elements from the range [first ,last ).
//!
//! <b>Complexity</b>: Linear in N if the range [first ,last ) is already sorted using
//! comp and otherwise N logN, where N is last - first.
template <class InputIterator>
flat_multimap(InputIterator first, InputIterator last,
const Compare& comp = Compare(),
const allocator_type& a = allocator_type())
: m_flat_tree(false, first, last, comp, container_detail::force<impl_allocator_type>(a))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Constructs an empty flat_multimap using the specified comparison object and
//! allocator, and inserts elements from the ordered range [first ,last). This function
//! is more efficient than the normal range creation for ordered ranges.
//!
//! <b>Requires</b>: [first ,last) must be ordered according to the predicate.
//!
//! <b>Complexity</b>: Linear in N.
//!
//! <b>Note</b>: Non-standard extension.
template <class InputIterator>
flat_multimap(ordered_range_t, InputIterator first, InputIterator last,
const Compare& comp = Compare(),
const allocator_type& a = allocator_type())
: m_flat_tree(ordered_range, first, last, comp, a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Copy constructs a flat_multimap.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_multimap(const flat_multimap& x)
: m_flat_tree(x.m_flat_tree)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Move constructs a flat_multimap. Constructs *this using x's resources.
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Postcondition</b>: x is emptied.
flat_multimap(BOOST_RV_REF(flat_multimap) x)
: m_flat_tree(boost::move(x.m_flat_tree))
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Copy constructs a flat_multimap using the specified allocator.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_multimap(const flat_multimap& x, const allocator_type &a)
: m_flat_tree(x.m_flat_tree, a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Move constructs a flat_multimap using the specified allocator.
//! Constructs *this using x's resources.
//!
//! <b>Complexity</b>: Constant if a == x.get_allocator(), linear otherwise.
flat_multimap(BOOST_RV_REF(flat_multimap) x, const allocator_type &a)
: m_flat_tree(boost::move(x.m_flat_tree), a)
{
//Allocator type must be std::pair<Key, T>
BOOST_STATIC_ASSERT((container_detail::is_same<std::pair<Key, T>, typename Allocator::value_type>::value));
}
//! <b>Effects</b>: Makes *this a copy of x.
//!
//! <b>Complexity</b>: Linear in x.size().
flat_multimap& operator=(BOOST_COPY_ASSIGN_REF(flat_multimap) x)
{ m_flat_tree = x.m_flat_tree; return *this; }
//! <b>Effects</b>: this->swap(x.get()).
//!
//! <b>Complexity</b>: Constant.
flat_multimap& operator=(BOOST_RV_REF(flat_multimap) x)
BOOST_CONTAINER_NOEXCEPT_IF(allocator_traits_type::propagate_on_container_move_assignment::value)
{ m_flat_tree = boost::move(x.m_flat_tree); return *this; }
//! <b>Effects</b>: Returns a copy of the Allocator that
//! was passed to the object's constructor.
//!
//! <b>Complexity</b>: Constant.
allocator_type get_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<allocator_type>(m_flat_tree.get_allocator()); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
stored_allocator_type &get_stored_allocator() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force<stored_allocator_type>(m_flat_tree.get_stored_allocator()); }
//! <b>Effects</b>: Returns a reference to the internal allocator.
//!
//! <b>Throws</b>: Nothing
//!
//! <b>Complexity</b>: Constant.
//!
//! <b>Note</b>: Non-standard extension.
const stored_allocator_type &get_stored_allocator() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force<stored_allocator_type>(m_flat_tree.get_stored_allocator()); }
//////////////////////////////////////////////
//
// iterators
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns an iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator begin() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<iterator>(m_flat_tree.begin()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator begin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.begin()); }
//! <b>Effects</b>: Returns an iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
iterator end() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<iterator>(m_flat_tree.end()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator end() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.end()); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rbegin() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<reverse_iterator>(m_flat_tree.rbegin()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.rbegin()); }
//! <b>Effects</b>: Returns a reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
reverse_iterator rend() BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<reverse_iterator>(m_flat_tree.rend()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator rend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.rend()); }
//! <b>Effects</b>: Returns a const_iterator to the first element contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.cbegin()); }
//! <b>Effects</b>: Returns a const_iterator to the end of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_iterator cend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_iterator>(m_flat_tree.cend()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the beginning
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crbegin() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.crbegin()); }
//! <b>Effects</b>: Returns a const_reverse_iterator pointing to the end
//! of the reversed container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
const_reverse_iterator crend() const BOOST_CONTAINER_NOEXCEPT
{ return container_detail::force_copy<const_reverse_iterator>(m_flat_tree.crend()); }
//////////////////////////////////////////////
//
// capacity
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns true if the container contains no elements.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
bool empty() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.empty(); }
//! <b>Effects</b>: Returns the number of the elements contained in the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type size() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.size(); }
//! <b>Effects</b>: Returns the largest possible size of the container.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type max_size() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.max_size(); }
//! <b>Effects</b>: Number of elements for which memory has been allocated.
//! capacity() is always greater than or equal to size().
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
size_type capacity() const BOOST_CONTAINER_NOEXCEPT
{ return m_flat_tree.capacity(); }
//! <b>Effects</b>: If n is less than or equal to capacity(), this call has no
//! effect. Otherwise, it is a request for allocation of additional memory.
//! If the request is successful, then capacity() is greater than or equal to
//! n; otherwise, capacity() is unchanged. In either case, size() is unchanged.
//!
//! <b>Throws</b>: If memory allocation allocation throws or T's copy constructor throws.
//!
//! <b>Note</b>: If capacity() is less than "cnt", iterators and references to
//! to values might be invalidated.
void reserve(size_type cnt)
{ m_flat_tree.reserve(cnt); }
//! <b>Effects</b>: Tries to deallocate the excess of memory created
// with previous allocations. The size of the vector is unchanged
//!
//! <b>Throws</b>: If memory allocation throws, or T's copy constructor throws.
//!
//! <b>Complexity</b>: Linear to size().
void shrink_to_fit()
{ m_flat_tree.shrink_to_fit(); }
//////////////////////////////////////////////
//
// modifiers
//
//////////////////////////////////////////////
#if defined(BOOST_CONTAINER_PERFECT_FORWARDING) || defined(BOOST_CONTAINER_DOXYGEN_INVOKED)
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... and returns the iterator pointing to the
//! newly inserted element.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class... Args>
iterator emplace(Args&&... args)
{ return container_detail::force_copy<iterator>(m_flat_tree.emplace_equal(boost::forward<Args>(args)...)); }
//! <b>Effects</b>: Inserts an object of type T constructed with
//! std::forward<Args>(args)... in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant time if the value
//! is to be inserted before p) plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class... Args>
iterator emplace_hint(const_iterator hint, Args&&... args)
{
return container_detail::force_copy<iterator>(m_flat_tree.emplace_hint_equal
(container_detail::force_copy<impl_const_iterator>(hint), boost::forward<Args>(args)...));
}
#else //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
#define BOOST_PP_LOCAL_MACRO(n) \
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
iterator emplace(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
{ return container_detail::force_copy<iterator>(m_flat_tree.emplace_equal \
(BOOST_PP_ENUM(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); } \
\
BOOST_PP_EXPR_IF(n, template<) BOOST_PP_ENUM_PARAMS(n, class P) BOOST_PP_EXPR_IF(n, >) \
iterator emplace_hint(const_iterator hint \
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_LIST, _)) \
{ return container_detail::force_copy<iterator>(m_flat_tree.emplace_hint_equal \
(container_detail::force_copy<impl_const_iterator>(hint) \
BOOST_PP_ENUM_TRAILING(n, BOOST_CONTAINER_PP_PARAM_FORWARD, _))); } \
//!
#define BOOST_PP_LOCAL_LIMITS (0, BOOST_CONTAINER_MAX_CONSTRUCTOR_PARAMETERS)
#include BOOST_PP_LOCAL_ITERATE()
#endif //#ifdef BOOST_CONTAINER_PERFECT_FORWARDING
//! <b>Effects</b>: Inserts x and returns the iterator pointing to the
//! newly inserted element.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const value_type& x)
{
return container_detail::force_copy<iterator>(
m_flat_tree.insert_equal(container_detail::force<impl_value_type>(x)));
}
//! <b>Effects</b>: Inserts a new value move-constructed from x and returns
//! the iterator pointing to the newly inserted element.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(BOOST_RV_REF(value_type) x)
{ return container_detail::force_copy<iterator>(m_flat_tree.insert_equal(boost::move(x))); }
//! <b>Effects</b>: Inserts a new value move-constructed from x and returns
//! the iterator pointing to the newly inserted element.
//!
//! <b>Complexity</b>: Logarithmic search time plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(BOOST_RV_REF(impl_value_type) x)
{ return container_detail::force_copy<iterator>(m_flat_tree.insert_equal(boost::move(x))); }
//! <b>Effects</b>: Inserts a copy of x in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant time if the value
//! is to be inserted before p) plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, const value_type& x)
{
return container_detail::force_copy<iterator>
(m_flat_tree.insert_equal( container_detail::force_copy<impl_const_iterator>(p)
, container_detail::force<impl_value_type>(x)));
}
//! <b>Effects</b>: Inserts a value move constructed from x in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant time if the value
//! is to be inserted before p) plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, BOOST_RV_REF(value_type) x)
{
return container_detail::force_copy<iterator>
(m_flat_tree.insert_equal(container_detail::force_copy<impl_const_iterator>(p)
, boost::move(x)));
}
//! <b>Effects</b>: Inserts a value move constructed from x in the container.
//! p is a hint pointing to where the insert should start to search.
//!
//! <b>Returns</b>: An iterator pointing to the element with key equivalent
//! to the key of x.
//!
//! <b>Complexity</b>: Logarithmic search time (constant time if the value
//! is to be inserted before p) plus linear insertion
//! to the elements with bigger keys than x.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
iterator insert(const_iterator p, BOOST_RV_REF(impl_value_type) x)
{
return container_detail::force_copy<iterator>(
m_flat_tree.insert_equal(container_detail::force_copy<impl_const_iterator>(p), boost::move(x)));
}
//! <b>Requires</b>: first, last are not iterators into *this.
//!
//! <b>Effects</b>: inserts each element from the range [first,last) .
//!
//! <b>Complexity</b>: At most N log(size()+N) (N is the distance from first to last)
//! search time plus N*size() insertion time.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
template <class InputIterator>
void insert(InputIterator first, InputIterator last)
{ m_flat_tree.insert_equal(first, last); }
//! <b>Requires</b>: first, last are not iterators into *this.
//!
//! <b>Requires</b>: [first ,last) must be ordered according to the predicate.
//!
//! <b>Effects</b>: inserts each element from the range [first,last) if and only
//! if there is no element with key equivalent to the key of that element. This
//! function is more efficient than the normal range creation for ordered ranges.
//!
//! <b>Complexity</b>: At most N log(size()+N) (N is the distance from first to last)
//! search time plus N*size() insertion time.
//!
//! <b>Note</b>: If an element is inserted it might invalidate elements.
//!
//! <b>Note</b>: Non-standard extension.
template <class InputIterator>
void insert(ordered_range_t, InputIterator first, InputIterator last)
{ m_flat_tree.insert_equal(ordered_range, first, last); }
//! <b>Effects</b>: Erases the element pointed to by p.
//!
//! <b>Returns</b>: Returns an iterator pointing to the element immediately
//! following q prior to the element being erased. If no such element exists,
//! returns end().
//!
//! <b>Complexity</b>: Linear to the elements with keys bigger than p
//!
//! <b>Note</b>: Invalidates elements with keys
//! not less than the erased element.
iterator erase(const_iterator p)
{
return container_detail::force_copy<iterator>(
m_flat_tree.erase(container_detail::force_copy<impl_const_iterator>(p)));
}
//! <b>Effects</b>: Erases all elements in the container with key equivalent to x.
//!
//! <b>Returns</b>: Returns the number of erased elements.
//!
//! <b>Complexity</b>: Logarithmic search time plus erasure time
//! linear to the elements with bigger keys.
size_type erase(const key_type& x)
{ return m_flat_tree.erase(x); }
//! <b>Effects</b>: Erases all the elements in the range [first, last).
//!
//! <b>Returns</b>: Returns last.
//!
//! <b>Complexity</b>: size()*N where N is the distance from first to last.
//!
//! <b>Complexity</b>: Logarithmic search time plus erasure time
//! linear to the elements with bigger keys.
iterator erase(const_iterator first, const_iterator last)
{
return container_detail::force_copy<iterator>
(m_flat_tree.erase( container_detail::force_copy<impl_const_iterator>(first)
, container_detail::force_copy<impl_const_iterator>(last)));
}
//! <b>Effects</b>: Swaps the contents of *this and x.
//!
//! <b>Throws</b>: Nothing.
//!
//! <b>Complexity</b>: Constant.
void swap(flat_multimap& x)
{ m_flat_tree.swap(x.m_flat_tree); }
//! <b>Effects</b>: erase(a.begin(),a.end()).
//!
//! <b>Postcondition</b>: size() == 0.
//!
//! <b>Complexity</b>: linear in size().
void clear() BOOST_CONTAINER_NOEXCEPT
{ m_flat_tree.clear(); }
//////////////////////////////////////////////
//
// observers
//
//////////////////////////////////////////////
//! <b>Effects</b>: Returns the comparison object out
//! of which a was constructed.
//!
//! <b>Complexity</b>: Constant.
key_compare key_comp() const
{ return container_detail::force_copy<key_compare>(m_flat_tree.key_comp()); }
//! <b>Effects</b>: Returns an object of value_compare constructed out
//! of the comparison object.
//!
//! <b>Complexity</b>: Constant.
value_compare value_comp() const
{ return value_compare(container_detail::force_copy<key_compare>(m_flat_tree.key_comp())); }
//////////////////////////////////////////////
//
// map operations
//
//////////////////////////////////////////////
//! <b>Returns</b>: An iterator pointing to an element with the key
//! equivalent to x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic.
iterator find(const key_type& x)
{ return container_detail::force_copy<iterator>(m_flat_tree.find(x)); }
//! <b>Returns</b>: An const_iterator pointing to an element with the key
//! equivalent to x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic.
const_iterator find(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.find(x)); }
//! <b>Returns</b>: The number of elements with key equivalent to x.
//!
//! <b>Complexity</b>: log(size())+count(k)
size_type count(const key_type& x) const
{ return m_flat_tree.count(x); }
//! <b>Returns</b>: An iterator pointing to the first element with key not less
//! than k, or a.end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
iterator lower_bound(const key_type& x)
{ return container_detail::force_copy<iterator>(m_flat_tree.lower_bound(x)); }
//! <b>Returns</b>: Allocator const iterator pointing to the first element with key
//! not less than k, or a.end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
const_iterator lower_bound(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.lower_bound(x)); }
//! <b>Returns</b>: An iterator pointing to the first element with key not less
//! than x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
iterator upper_bound(const key_type& x)
{return container_detail::force_copy<iterator>(m_flat_tree.upper_bound(x)); }
//! <b>Returns</b>: Allocator const iterator pointing to the first element with key
//! not less than x, or end() if such an element is not found.
//!
//! <b>Complexity</b>: Logarithmic
const_iterator upper_bound(const key_type& x) const
{ return container_detail::force_copy<const_iterator>(m_flat_tree.upper_bound(x)); }
//! <b>Effects</b>: Equivalent to std::make_pair(this->lower_bound(k), this->upper_bound(k)).
//!
//! <b>Complexity</b>: Logarithmic
std::pair<iterator,iterator> equal_range(const key_type& x)
{ return container_detail::force_copy<std::pair<iterator,iterator> >(m_flat_tree.equal_range(x)); }
//! <b>Effects</b>: Equivalent to std::make_pair(this->lower_bound(k), this->upper_bound(k)).
//!
//! <b>Complexity</b>: Logarithmic
std::pair<const_iterator,const_iterator> equal_range(const key_type& x) const
{ return container_detail::force_copy<std::pair<const_iterator,const_iterator> >(m_flat_tree.equal_range(x)); }
//! <b>Effects</b>: Returns true if x and y are equal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator==(const flat_multimap& x, const flat_multimap& y)
{ return x.size() == y.size() && std::equal(x.begin(), x.end(), y.begin()); }
//! <b>Effects</b>: Returns true if x and y are unequal
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator!=(const flat_multimap& x, const flat_multimap& y)
{ return !(x == y); }
//! <b>Effects</b>: Returns true if x is less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<(const flat_multimap& x, const flat_multimap& y)
{ return std::lexicographical_compare(x.begin(), x.end(), y.begin(), y.end()); }
//! <b>Effects</b>: Returns true if x is greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>(const flat_multimap& x, const flat_multimap& y)
{ return y < x; }
//! <b>Effects</b>: Returns true if x is equal or less than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator<=(const flat_multimap& x, const flat_multimap& y)
{ return !(y < x); }
//! <b>Effects</b>: Returns true if x is equal or greater than y
//!
//! <b>Complexity</b>: Linear to the number of elements in the container.
friend bool operator>=(const flat_multimap& x, const flat_multimap& y)
{ return !(x < y); }
//! <b>Effects</b>: x.swap(y)
//!
//! <b>Complexity</b>: Constant.
friend void swap(flat_multimap& x, flat_multimap& y)
{ x.swap(y); }
};
}}
#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
namespace boost {
//!has_trivial_destructor_after_move<> == true_type
//!specialization for optimizations
template <class K, class T, class C, class Allocator>
struct has_trivial_destructor_after_move< boost::container::flat_multimap<K, T, C, Allocator> >
{
static const bool value = has_trivial_destructor_after_move<Allocator>::value && has_trivial_destructor_after_move<C>::value;
};
} //namespace boost {
#endif //#ifndef BOOST_CONTAINER_DOXYGEN_INVOKED
#include <boost/container/detail/config_end.hpp>
#endif /* BOOST_CONTAINER_FLAT_MAP_HPP */
View Git Blame Copy Permalink