libstdc++
std::multiset< _Key, _Compare, _Alloc > Class Template Reference

Public Types

typedef _Alloc allocator_type
 
typedef _Rep_type::const_iterator const_iterator
 
typedef _Alloc_traits::const_pointer const_pointer
 
typedef _Alloc_traits::const_reference const_reference
 
typedef _Rep_type::const_reverse_iterator const_reverse_iterator
 
typedef _Rep_type::difference_type difference_type
 
typedef _Rep_type::const_iterator iterator
 
typedef _Compare key_compare
 
typedef _Key key_type
 
using node_type = typename _Rep_type::node_type
 
typedef _Alloc_traits::pointer pointer
 
typedef _Alloc_traits::reference reference
 
typedef _Rep_type::const_reverse_iterator reverse_iterator
 
typedef _Rep_type::size_type size_type
 
typedef _Compare value_compare
 
typedef _Key value_type
 

Public Member Functions

 multiset ()=default
 
template<typename _InputIterator >
 multiset (_InputIterator __first, _InputIterator __last)
 
template<typename _InputIterator >
 multiset (_InputIterator __first, _InputIterator __last, const _Compare &__comp, const allocator_type &__a=allocator_type())
 
template<typename _InputIterator >
 multiset (_InputIterator __first, _InputIterator __last, const allocator_type &__a)
 
 multiset (const _Compare &__comp, const allocator_type &__a=allocator_type())
 
 multiset (const allocator_type &__a)
 
 multiset (const multiset &)=default
 
 multiset (const multiset &__m, const allocator_type &__a)
 
 multiset (initializer_list< value_type > __l, const _Compare &__comp=_Compare(), const allocator_type &__a=allocator_type())
 
 multiset (initializer_list< value_type > __l, const allocator_type &__a)
 
 multiset (multiset &&)=default
 
 multiset (multiset &&__m, const allocator_type &__a) noexcept(is_nothrow_copy_constructible< _Compare >::value &&_Alloc_traits::_S_always_equal())
 
 ~multiset ()=default
 
iterator begin () const noexcept
 
iterator cbegin () const noexcept
 
iterator cend () const noexcept
 
void clear () noexcept
 
reverse_iterator crbegin () const noexcept
 
reverse_iterator crend () const noexcept
 
template<typename... _Args>
iterator emplace (_Args &&... __args)
 
template<typename... _Args>
iterator emplace_hint (const_iterator __pos, _Args &&... __args)
 
bool empty () const noexcept
 
iterator end () const noexcept
 
size_type erase (const key_type &__x)
 
_GLIBCXX_ABI_TAG_CXX11 iterator erase (const_iterator __first, const_iterator __last)
 
_GLIBCXX_ABI_TAG_CXX11 iterator erase (const_iterator __position)
 
node_type extract (const key_type &__x)
 
node_type extract (const_iterator __pos)
 
allocator_type get_allocator () const noexcept
 
template<typename _InputIterator >
void insert (_InputIterator __first, _InputIterator __last)
 
iterator insert (const value_type &__x)
 
iterator insert (const_iterator __hint, node_type &&__nh)
 
iterator insert (const_iterator __position, const value_type &__x)
 
iterator insert (const_iterator __position, value_type &&__x)
 
void insert (initializer_list< value_type > __l)
 
iterator insert (node_type &&__nh)
 
iterator insert (value_type &&__x)
 
key_compare key_comp () const
 
size_type max_size () const noexcept
 
template<typename _Compare1 >
void merge (multiset< _Key, _Compare1, _Alloc > &&__source)
 
template<typename _Compare1 >
void merge (multiset< _Key, _Compare1, _Alloc > &__source)
 
template<typename _Compare1 >
void merge (set< _Key, _Compare1, _Alloc > &&__source)
 
template<typename _Compare1 >
void merge (set< _Key, _Compare1, _Alloc > &__source)
 
multisetoperator= (const multiset &)=default
 
multisetoperator= (initializer_list< value_type > __l)
 
multisetoperator= (multiset &&)=default
 
reverse_iterator rbegin () const noexcept
 
reverse_iterator rend () const noexcept
 
size_type size () const noexcept
 
void swap (multiset &__x) noexcept(/*conditional */)
 
value_compare value_comp () const
 
size_type count (const key_type &__x) const
 
template<typename _Kt >
auto count (const _Kt &__x) const -> decltype(_M_t._M_count_tr(__x))
 
iterator find (const key_type &__x)
 
const_iterator find (const key_type &__x) const
 
template<typename _Kt >
auto find (const _Kt &__x) -> decltype(iterator{_M_t._M_find_tr(__x)})
 
template<typename _Kt >
auto find (const _Kt &__x) const -> decltype(const_iterator{_M_t._M_find_tr(__x)})
 
iterator lower_bound (const key_type &__x)
 
const_iterator lower_bound (const key_type &__x) const
 
template<typename _Kt >
auto lower_bound (const _Kt &__x) -> decltype(iterator(_M_t._M_lower_bound_tr(__x)))
 
template<typename _Kt >
auto lower_bound (const _Kt &__x) const -> decltype(iterator(_M_t._M_lower_bound_tr(__x)))
 
iterator upper_bound (const key_type &__x)
 
const_iterator upper_bound (const key_type &__x) const
 
template<typename _Kt >
auto upper_bound (const _Kt &__x) -> decltype(iterator(_M_t._M_upper_bound_tr(__x)))
 
template<typename _Kt >
auto upper_bound (const _Kt &__x) const -> decltype(iterator(_M_t._M_upper_bound_tr(__x)))
 
std::pair< iterator, iterator > equal_range (const key_type &__x)
 
std::pair< const_iterator, const_iterator > equal_range (const key_type &__x) const
 
template<typename _Kt >
auto equal_range (const _Kt &__x) -> decltype(pair< iterator, iterator >(_M_t._M_equal_range_tr(__x)))
 
template<typename _Kt >
auto equal_range (const _Kt &__x) const -> decltype(pair< iterator, iterator >(_M_t._M_equal_range_tr(__x)))
 

Friends

template<typename _K1 , typename _C1 , typename _A1 >
bool operator< (const multiset< _K1, _C1, _A1 > &, const multiset< _K1, _C1, _A1 > &)
 
template<typename _K1 , typename _C1 , typename _A1 >
bool operator== (const multiset< _K1, _C1, _A1 > &, const multiset< _K1, _C1, _A1 > &)
 
template<typename , typename >
struct std::_Rb_tree_merge_helper
 

Detailed Description

template<typename _Key, typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
class std::multiset< _Key, _Compare, _Alloc >

A standard container made up of elements, which can be retrieved in logarithmic time.

Template Parameters
_KeyType of key objects.
_CompareComparison function object type, defaults to less<_Key>.
_AllocAllocator type, defaults to allocator<_Key>.

Meets the requirements of a container, a reversible container, and an associative container (using equivalent keys). For a multiset<Key> the key_type and value_type are Key.

Multisets support bidirectional iterators.

The private tree data is declared exactly the same way for set and multiset; the distinction is made entirely in how the tree functions are called (*_unique versus *_equal, same as the standard).

Definition at line 96 of file stl_multiset.h.

Constructor & Destructor Documentation

◆ multiset() [1/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( )
default

Default constructor creates no elements.

◆ multiset() [2/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( const _Compare &  __comp,
const allocator_type &  __a = allocator_type() 
)
inlineexplicit

Creates a multiset with no elements.

Parameters
__compComparator to use.
__aAn allocator object.

Definition at line 173 of file stl_multiset.h.

◆ multiset() [3/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _InputIterator >
std::multiset< _Key, _Compare, _Alloc >::multiset ( _InputIterator  __first,
_InputIterator  __last 
)
inline

Builds a multiset from a range.

Parameters
__firstAn input iterator.
__lastAn input iterator.

Create a multiset consisting of copies of the elements from [first,last). This is linear in N if the range is already sorted, and NlogN otherwise (where N is distance(__first,__last)).

Definition at line 187 of file stl_multiset.h.

◆ multiset() [4/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _InputIterator >
std::multiset< _Key, _Compare, _Alloc >::multiset ( _InputIterator  __first,
_InputIterator  __last,
const _Compare &  __comp,
const allocator_type &  __a = allocator_type() 
)
inline

Builds a multiset from a range.

Parameters
__firstAn input iterator.
__lastAn input iterator.
__compA comparison functor.
__aAn allocator object.

Create a multiset consisting of copies of the elements from [__first,__last). This is linear in N if the range is already sorted, and NlogN otherwise (where N is distance(__first,__last)).

Definition at line 203 of file stl_multiset.h.

◆ multiset() [5/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( const multiset< _Key, _Compare, _Alloc > &  )
default

Multiset copy constructor.

Whether the allocator is copied depends on the allocator traits.

◆ multiset() [6/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( multiset< _Key, _Compare, _Alloc > &&  )
default

Multiset move constructor.

The newly-created multiset contains the exact contents of the moved instance. The moved instance is a valid, but unspecified multiset.

◆ multiset() [7/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( initializer_list< value_type >  __l,
const _Compare &  __comp = _Compare(),
const allocator_type &  __a = allocator_type() 
)
inline

Builds a multiset from an initializer_list.

Parameters
__lAn initializer_list.
__compA comparison functor.
__aAn allocator object.

Create a multiset consisting of copies of the elements from the list. This is linear in N if the list is already sorted, and NlogN otherwise (where N is __l.size()).

Definition at line 239 of file stl_multiset.h.

◆ multiset() [8/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( const allocator_type &  __a)
inlineexplicit

Allocator-extended default constructor.

Definition at line 247 of file stl_multiset.h.

◆ multiset() [9/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( const multiset< _Key, _Compare, _Alloc > &  __m,
const allocator_type &  __a 
)
inline

Allocator-extended copy constructor.

Definition at line 251 of file stl_multiset.h.

◆ multiset() [10/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( multiset< _Key, _Compare, _Alloc > &&  __m,
const allocator_type &  __a 
)
inlinenoexcept

Allocator-extended move constructor.

Definition at line 255 of file stl_multiset.h.

◆ multiset() [11/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::multiset ( initializer_list< value_type >  __l,
const allocator_type &  __a 
)
inline

Allocator-extended initialier-list constructor.

Definition at line 261 of file stl_multiset.h.

◆ multiset() [12/12]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _InputIterator >
std::multiset< _Key, _Compare, _Alloc >::multiset ( _InputIterator  __first,
_InputIterator  __last,
const allocator_type &  __a 
)
inline

Allocator-extended range constructor.

Definition at line 267 of file stl_multiset.h.

◆ ~multiset()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::multiset< _Key, _Compare, _Alloc >::~multiset ( )
default

The dtor only erases the elements, and note that if the elements themselves are pointers, the pointed-to memory is not touched in any way. Managing the pointer is the user's responsibility.

Member Function Documentation

◆ begin()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::begin ( ) const
inlinenoexcept

Returns a read-only (constant) iterator that points to the first element in the multiset. Iteration is done in ascending order according to the keys.

Definition at line 340 of file stl_multiset.h.

◆ cbegin()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::cbegin ( ) const
inlinenoexcept

Returns a read-only (constant) iterator that points to the first element in the multiset. Iteration is done in ascending order according to the keys.

Definition at line 377 of file stl_multiset.h.

◆ cend()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::cend ( ) const
inlinenoexcept

Returns a read-only (constant) iterator that points one past the last element in the multiset. Iteration is done in ascending order according to the keys.

Definition at line 386 of file stl_multiset.h.

◆ clear()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
void std::multiset< _Key, _Compare, _Alloc >::clear ( )
inlinenoexcept

Erases all elements in a multiset. Note that this function only erases the elements, and that if the elements themselves are pointers, the pointed-to memory is not touched in any way. Managing the pointer is the user's responsibility.

Definition at line 718 of file stl_multiset.h.

◆ count() [1/2]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::count ( const _Kt &  __x) const -> decltype(_M_t._M_count_tr(__x))
inline

Finds the number of elements with given key.

Parameters
__xKey of elements to be located.
Returns
Number of elements with specified key.

Definition at line 736 of file stl_multiset.h.

◆ count() [2/2]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
size_type std::multiset< _Key, _Compare, _Alloc >::count ( const key_type &  __x) const
inline

Finds the number of elements with given key.

Parameters
__xKey of elements to be located.
Returns
Number of elements with specified key.

Definition at line 730 of file stl_multiset.h.

◆ crbegin()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
reverse_iterator std::multiset< _Key, _Compare, _Alloc >::crbegin ( ) const
inlinenoexcept

Returns a read-only (constant) reverse iterator that points to the last element in the multiset. Iteration is done in descending order according to the keys.

Definition at line 395 of file stl_multiset.h.

◆ crend()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
reverse_iterator std::multiset< _Key, _Compare, _Alloc >::crend ( ) const
inlinenoexcept

Returns a read-only (constant) reverse iterator that points to the last element in the multiset. Iteration is done in descending order according to the keys.

Definition at line 404 of file stl_multiset.h.

◆ emplace()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename... _Args>
iterator std::multiset< _Key, _Compare, _Alloc >::emplace ( _Args &&...  __args)
inline

Builds and inserts an element into the multiset.

Parameters
__argsArguments used to generate the element instance to be inserted.
Returns
An iterator that points to the inserted element.

This function inserts an element into the multiset. Contrary to a std::set the multiset does not rely on unique keys and thus multiple copies of the same element can be inserted.

Insertion requires logarithmic time.

Definition at line 457 of file stl_multiset.h.

◆ emplace_hint()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename... _Args>
iterator std::multiset< _Key, _Compare, _Alloc >::emplace_hint ( const_iterator  __pos,
_Args &&...  __args 
)
inline

Builds and inserts an element into the multiset.

Parameters
__posAn iterator that serves as a hint as to where the element should be inserted.
__argsArguments used to generate the element instance to be inserted.
Returns
An iterator that points to the inserted element.

This function inserts an element into the multiset. Contrary to a std::set the multiset does not rely on unique keys and thus multiple copies of the same element can be inserted.

Note that the first parameter is only a hint and can potentially improve the performance of the insertion process. A bad hint would cause no gains in efficiency.

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints for more on hinting.

Insertion requires logarithmic time (if the hint is not taken).

Definition at line 483 of file stl_multiset.h.

◆ empty()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
bool std::multiset< _Key, _Compare, _Alloc >::empty ( ) const
inlinenoexcept

Returns true if the set is empty.

Definition at line 410 of file stl_multiset.h.

◆ end()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::end ( ) const
inlinenoexcept

Returns a read-only (constant) iterator that points one past the last element in the multiset. Iteration is done in ascending order according to the keys.

Definition at line 349 of file stl_multiset.h.

◆ equal_range() [1/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::equal_range ( const _Kt &  __x) -> decltype(pair<iterator, iterator>(_M_t._M_equal_range_tr(__x)))
inline

Finds a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Pair of iterators that possibly points to the subsequence matching given key.

This function is equivalent to

std::make_pair(c.lower_bound(val),
c.upper_bound(val))

(but is faster than making the calls separately).

This function probably only makes sense for multisets.

Definition at line 889 of file stl_multiset.h.

◆ equal_range() [2/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::equal_range ( const _Kt &  __x) const -> decltype(pair<iterator, iterator>(_M_t._M_equal_range_tr(__x)))
inline

Finds a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Pair of iterators that possibly points to the subsequence matching given key.

This function is equivalent to

std::make_pair(c.lower_bound(val),
c.upper_bound(val))

(but is faster than making the calls separately).

This function probably only makes sense for multisets.

Definition at line 895 of file stl_multiset.h.

◆ equal_range() [3/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::pair<iterator, iterator> std::multiset< _Key, _Compare, _Alloc >::equal_range ( const key_type &  __x)
inline

Finds a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Pair of iterators that possibly points to the subsequence matching given key.

This function is equivalent to

std::make_pair(c.lower_bound(val),
c.upper_bound(val))

(but is faster than making the calls separately).

This function probably only makes sense for multisets.

Definition at line 879 of file stl_multiset.h.

◆ equal_range() [4/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
std::pair<const_iterator, const_iterator> std::multiset< _Key, _Compare, _Alloc >::equal_range ( const key_type &  __x) const
inline

Finds a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Pair of iterators that possibly points to the subsequence matching given key.

This function is equivalent to

std::make_pair(c.lower_bound(val),
c.upper_bound(val))

(but is faster than making the calls separately).

This function probably only makes sense for multisets.

Definition at line 883 of file stl_multiset.h.

◆ erase() [1/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
size_type std::multiset< _Key, _Compare, _Alloc >::erase ( const key_type &  __x)
inline

Erases elements according to the provided key.

Parameters
__xKey of element to be erased.
Returns
The number of elements erased.

This function erases all elements located by the given key from a multiset. Note that this function only erases the element, and that if the element is itself a pointer, the pointed-to memory is not touched in any way. Managing the pointer is the user's responsibility.

Definition at line 669 of file stl_multiset.h.

◆ erase() [2/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
_GLIBCXX_ABI_TAG_CXX11 iterator std::multiset< _Key, _Compare, _Alloc >::erase ( const_iterator  __first,
const_iterator  __last 
)
inline

Erases a [first,last) range of elements from a multiset.

Parameters
__firstIterator pointing to the start of the range to be erased.
__lastIterator pointing to the end of the range to be erased.
Returns
The iterator last.

This function erases a sequence of elements from a multiset. Note that this function only erases the elements, and that if the elements themselves are pointers, the pointed-to memory is not touched in any way. Managing the pointer is the user's responsibility.

Definition at line 691 of file stl_multiset.h.

◆ erase() [3/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
_GLIBCXX_ABI_TAG_CXX11 iterator std::multiset< _Key, _Compare, _Alloc >::erase ( const_iterator  __position)
inline

Erases an element from a multiset.

Parameters
__positionAn iterator pointing to the element to be erased.
Returns
An iterator pointing to the element immediately following position prior to the element being erased. If no such element exists, end() is returned.

This function erases an element, pointed to by the given iterator, from a multiset. Note that this function only erases the element, and that if the element is itself a pointer, the pointed-to memory is not touched in any way. Managing the pointer is the user's responsibility.

Definition at line 639 of file stl_multiset.h.

◆ extract() [1/2]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
node_type std::multiset< _Key, _Compare, _Alloc >::extract ( const key_type &  __x)
inline

Extract a node.

Definition at line 578 of file stl_multiset.h.

◆ extract() [2/2]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
node_type std::multiset< _Key, _Compare, _Alloc >::extract ( const_iterator  __pos)
inline

Extract a node.

Definition at line 570 of file stl_multiset.h.

◆ find() [1/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::find ( const _Kt &  __x) -> decltype(iterator{_M_t._M_find_tr(__x)})
inline

Tries to locate an element in a set.

Parameters
__xElement to be located.
Returns
Iterator pointing to sought-after element, or end() if not found.

This function takes a key and tries to locate the element with which the key matches. If successful the function returns an iterator pointing to the sought after element. If unsuccessful it returns the past-the-end ( end() ) iterator.

Definition at line 785 of file stl_multiset.h.

◆ find() [2/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::find ( const _Kt &  __x) const -> decltype(const_iterator{_M_t._M_find_tr(__x)})
inline

Tries to locate an element in a set.

Parameters
__xElement to be located.
Returns
Iterator pointing to sought-after element, or end() if not found.

This function takes a key and tries to locate the element with which the key matches. If successful the function returns an iterator pointing to the sought after element. If unsuccessful it returns the past-the-end ( end() ) iterator.

Definition at line 791 of file stl_multiset.h.

◆ find() [3/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::find ( const key_type &  __x)
inline

Tries to locate an element in a set.

Parameters
__xElement to be located.
Returns
Iterator pointing to sought-after element, or end() if not found.

This function takes a key and tries to locate the element with which the key matches. If successful the function returns an iterator pointing to the sought after element. If unsuccessful it returns the past-the-end ( end() ) iterator.

Definition at line 775 of file stl_multiset.h.

◆ find() [4/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
const_iterator std::multiset< _Key, _Compare, _Alloc >::find ( const key_type &  __x) const
inline

Tries to locate an element in a set.

Parameters
__xElement to be located.
Returns
Iterator pointing to sought-after element, or end() if not found.

This function takes a key and tries to locate the element with which the key matches. If successful the function returns an iterator pointing to the sought after element. If unsuccessful it returns the past-the-end ( end() ) iterator.

Definition at line 779 of file stl_multiset.h.

◆ get_allocator()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
allocator_type std::multiset< _Key, _Compare, _Alloc >::get_allocator ( ) const
inlinenoexcept

Returns the memory allocation object.

Definition at line 331 of file stl_multiset.h.

◆ insert() [1/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _InputIterator >
void std::multiset< _Key, _Compare, _Alloc >::insert ( _InputIterator  __first,
_InputIterator  __last 
)
inline

A template function that tries to insert a range of elements.

Parameters
__firstIterator pointing to the start of the range to be inserted.
__lastIterator pointing to the end of the range.

Complexity similar to that of the range constructor.

Definition at line 551 of file stl_multiset.h.

◆ insert() [2/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::insert ( const value_type &  __x)
inline

Inserts an element into the multiset.

Parameters
__xElement to be inserted.
Returns
An iterator that points to the inserted element.

This function inserts an element into the multiset. Contrary to a std::set the multiset does not rely on unique keys and thus multiple copies of the same element can be inserted.

Insertion requires logarithmic time.

Definition at line 502 of file stl_multiset.h.

Referenced by std::multiset< _Key, _Compare, _Alloc >::insert().

◆ insert() [3/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::insert ( const_iterator  __hint,
node_type &&  __nh 
)
inline

Re-insert an extracted node.

Definition at line 588 of file stl_multiset.h.

References std::move().

◆ insert() [4/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::insert ( const_iterator  __position,
const value_type &  __x 
)
inline

Inserts an element into the multiset.

Parameters
__positionAn iterator that serves as a hint as to where the element should be inserted.
__xElement to be inserted.
Returns
An iterator that points to the inserted element.

This function inserts an element into the multiset. Contrary to a std::set the multiset does not rely on unique keys and thus multiple copies of the same element can be inserted.

Note that the first parameter is only a hint and can potentially improve the performance of the insertion process. A bad hint would cause no gains in efficiency.

See https://gcc.gnu.org/onlinedocs/libstdc++/manual/associative.html#containers.associative.insert_hints for more on hinting.

Insertion requires logarithmic time (if the hint is not taken).

Definition at line 532 of file stl_multiset.h.

◆ insert() [5/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
void std::multiset< _Key, _Compare, _Alloc >::insert ( initializer_list< value_type >  __l)
inline

Attempts to insert a list of elements into the multiset.

Parameters
__lA std::initializer_list<value_type> of elements to be inserted.

Complexity similar to that of the range constructor.

Definition at line 563 of file stl_multiset.h.

References std::multiset< _Key, _Compare, _Alloc >::insert().

◆ insert() [6/6]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::insert ( node_type &&  __nh)
inline

Re-insert an extracted node.

Definition at line 583 of file stl_multiset.h.

References std::move().

◆ key_comp()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
key_compare std::multiset< _Key, _Compare, _Alloc >::key_comp ( ) const
inline

Returns the comparison object.

Definition at line 323 of file stl_multiset.h.

◆ lower_bound() [1/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::lower_bound ( const _Kt &  __x) -> decltype(iterator(_M_t._M_lower_bound_tr(__x)))
inline

Finds the beginning of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to first element equal to or greater than key, or end().

This function returns the first element of a subsequence of elements that matches the given key. If unsuccessful it returns an iterator pointing to the first element that has a greater value than given key or end() if no such element exists.

Definition at line 820 of file stl_multiset.h.

◆ lower_bound() [2/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::lower_bound ( const _Kt &  __x) const -> decltype(iterator(_M_t._M_lower_bound_tr(__x)))
inline

Finds the beginning of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to first element equal to or greater than key, or end().

This function returns the first element of a subsequence of elements that matches the given key. If unsuccessful it returns an iterator pointing to the first element that has a greater value than given key or end() if no such element exists.

Definition at line 826 of file stl_multiset.h.

◆ lower_bound() [3/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::lower_bound ( const key_type &  __x)
inline

Finds the beginning of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to first element equal to or greater than key, or end().

This function returns the first element of a subsequence of elements that matches the given key. If unsuccessful it returns an iterator pointing to the first element that has a greater value than given key or end() if no such element exists.

Definition at line 810 of file stl_multiset.h.

◆ lower_bound() [4/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
const_iterator std::multiset< _Key, _Compare, _Alloc >::lower_bound ( const key_type &  __x) const
inline

Finds the beginning of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to first element equal to or greater than key, or end().

This function returns the first element of a subsequence of elements that matches the given key. If unsuccessful it returns an iterator pointing to the first element that has a greater value than given key or end() if no such element exists.

Definition at line 814 of file stl_multiset.h.

◆ max_size()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
size_type std::multiset< _Key, _Compare, _Alloc >::max_size ( ) const
inlinenoexcept

Returns the maximum size of the set.

Definition at line 420 of file stl_multiset.h.

◆ operator=() [1/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
multiset& std::multiset< _Key, _Compare, _Alloc >::operator= ( const multiset< _Key, _Compare, _Alloc > &  )
default

Multiset assignment operator.

Whether the allocator is copied depends on the allocator traits.

◆ operator=() [2/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
multiset& std::multiset< _Key, _Compare, _Alloc >::operator= ( initializer_list< value_type >  __l)
inline

Multiset list assignment operator.

Parameters
__lAn initializer_list.

This function fills a multiset with copies of the elements in the initializer list __l.

Note that the assignment completely changes the multiset and that the resulting multiset's size is the same as the number of elements assigned.

Definition at line 312 of file stl_multiset.h.

◆ operator=() [3/3]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
multiset& std::multiset< _Key, _Compare, _Alloc >::operator= ( multiset< _Key, _Compare, _Alloc > &&  )
default

Move assignment operator.

◆ rbegin()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
reverse_iterator std::multiset< _Key, _Compare, _Alloc >::rbegin ( ) const
inlinenoexcept

Returns a read-only (constant) reverse iterator that points to the last element in the multiset. Iteration is done in descending order according to the keys.

Definition at line 358 of file stl_multiset.h.

◆ rend()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
reverse_iterator std::multiset< _Key, _Compare, _Alloc >::rend ( ) const
inlinenoexcept

Returns a read-only (constant) reverse iterator that points to the last element in the multiset. Iteration is done in descending order according to the keys.

Definition at line 367 of file stl_multiset.h.

◆ size()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
size_type std::multiset< _Key, _Compare, _Alloc >::size ( ) const
inlinenoexcept

Returns the size of the set.

Definition at line 415 of file stl_multiset.h.

◆ swap()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
void std::multiset< _Key, _Compare, _Alloc >::swap ( multiset< _Key, _Compare, _Alloc > &  __x)
inlinenoexcept

Swaps data with another multiset.

Parameters
__xA multiset of the same element and allocator types.

This exchanges the elements between two multisets in constant time. (It is only swapping a pointer, an integer, and an instance of the Compare type (which itself is often stateless and empty), so it should be quite fast.) Note that the global std::swap() function is specialized such that std::swap(s1,s2) will feed to this function.

Whether the allocators are swapped depends on the allocator traits.

Definition at line 437 of file stl_multiset.h.

◆ upper_bound() [1/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::upper_bound ( const _Kt &  __x) -> decltype(iterator(_M_t._M_upper_bound_tr(__x)))
inline

Finds the end of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to the first element greater than key, or end().

Definition at line 850 of file stl_multiset.h.

◆ upper_bound() [2/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
template<typename _Kt >
auto std::multiset< _Key, _Compare, _Alloc >::upper_bound ( const _Kt &  __x) const -> decltype(iterator(_M_t._M_upper_bound_tr(__x)))
inline

Finds the end of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to the first element greater than key, or end().

Definition at line 856 of file stl_multiset.h.

◆ upper_bound() [3/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
iterator std::multiset< _Key, _Compare, _Alloc >::upper_bound ( const key_type &  __x)
inline

Finds the end of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to the first element greater than key, or end().

Definition at line 840 of file stl_multiset.h.

◆ upper_bound() [4/4]

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
const_iterator std::multiset< _Key, _Compare, _Alloc >::upper_bound ( const key_type &  __x) const
inline

Finds the end of a subsequence matching given key.

Parameters
__xKey to be located.
Returns
Iterator pointing to the first element greater than key, or end().

Definition at line 844 of file stl_multiset.h.

◆ value_comp()

template<typename _Key , typename _Compare = std::less<_Key>, typename _Alloc = std::allocator<_Key>>
value_compare std::multiset< _Key, _Compare, _Alloc >::value_comp ( ) const
inline

Returns the comparison object.

Definition at line 327 of file stl_multiset.h.


The documentation for this class was generated from the following file: