Manpages - std_deque.3

typedef _Alloc allocator_type

typedef _Base::const_iterator const_iterator

typedef _Alloc_traits::const_pointer const_pointer

typedef _Alloc_traits::const_reference const_reference

typedef std::reverse_iterator*< *const_iterator > const_reverse_iterator

typedef ptrdiff_t difference_type

typedef _Base::iterator iterator

typedef _Alloc_traits::pointer pointer

typedef _Alloc_traits::reference reference

typedef std::reverse_iterator*< *iterator > reverse_iterator

typedef size_t size_type

typedef _Tp value_type

deque ()=default
Creates a deque with no elements.

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> deque (_InputIterator __first, _InputIterator __last, const allocator_type &__a=allocator_type())
Builds a deque from a range.

deque (const allocator_type &__a)
Creates a deque with no elements.

deque (const deque &__x)
Deque copy constructor.

deque (const deque &__x, const allocator_type &__a)
Copy constructor with alternative allocator.

deque (deque &&)=default
Deque move constructor.

deque (deque &&__x, const allocator_type &__a)
Move constructor with alternative allocator.

deque (*initializer_list*< value_type > __l, const allocator_type &__a=allocator_type())
Builds a deque from an initializer list.

deque (size_type __n, const allocator_type &__a=allocator_type())
Creates a deque with default constructed elements.

deque (size_type __n, const value_type &__value, const allocator_type &__a=allocator_type())
Creates a deque with copies of an exemplar element.

~deque ()

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> void assign (_InputIterator __first, _InputIterator __last)
Assigns a range to a deque.

void assign (*initializer_list*< value_type > __l)
Assigns an initializer list to a deque.

void assign (size_type __n, const value_type &__val)
Assigns a given value to a deque.

reference at (size_type __n)
Provides access to the data contained in the deque.

const_reference at (size_type __n) const
Provides access to the data contained in the deque.

const_reference back () const noexcept

reference back () noexcept

const_iterator begin () const noexcept

iterator begin () noexcept

const_iterator cbegin () const noexcept

const_iterator cend () const noexcept

void clear () noexcept

const_reverse_iterator crbegin () const noexcept

const_reverse_iterator crend () const noexcept

template<typename… _Args> iterator emplace (const_iterator __position, _Args &&… __args)
Inserts an object in deque before specified iterator.

template<typename… _Args> reference emplace_back (_Args &&… __args)

template<typename… _Args> reference emplace_front (_Args &&… __args)

bool empty () const noexcept

const_iterator end () const noexcept

iterator end () noexcept

iterator erase (const_iterator __first, const_iterator __last)
Remove a range of elements.

iterator erase (const_iterator __position)
Remove element at given position.

const_reference front () const noexcept

reference front () noexcept

allocator_type get_allocator () const noexcept
Get a copy of the memory allocation object.

iterator insert (const_iterator __p, *initializer_list*< value_type > __l)
Inserts an initializer list into the deque.

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> iterator insert (const_iterator __position, _InputIterator __first, _InputIterator __last)
Inserts a range into the deque.

iterator insert (const_iterator __position, const value_type &__x)
Inserts given value into deque before specified iterator.

iterator insert (const_iterator __position, size_type __n, const value_type &__x)
Inserts a number of copies of given data into the deque.

iterator insert (const_iterator __position, value_type &&__x)
Inserts given rvalue into deque before specified iterator.

size_type max_size () const noexcept

deque & operator= (const deque &__x)
Deque assignment operator.

deque & operator= (deque &&__x) noexcept(_Alloc_traits::_S_always_equal())
Deque move assignment operator.

deque & operator= (*initializer_list*< value_type > __l)
Assigns an initializer list to a deque.

const_reference operator[] (size_type __n) const noexcept
Subscript access to the data contained in the deque.

reference operator[] (size_type __n) noexcept
Subscript access to the data contained in the deque.

void pop_back () noexcept
Removes last element.

void pop_front () noexcept
Removes first element.

void push_back (const value_type &__x)
Add data to the end of the deque.

void push_back (value_type &&__x)

void push_front (const value_type &__x)
Add data to the front of the deque.

void push_front (value_type &&__x)

const_reverse_iterator rbegin () const noexcept

reverse_iterator rbegin () noexcept

const_reverse_iterator rend () const noexcept

reverse_iterator rend () noexcept

void resize (size_type __new_size)
Resizes the deque to the specified number of elements.

void resize (size_type __new_size, const value_type &__x)
Resizes the deque to the specified number of elements.

void shrink_to_fit () noexcept

size_type size () const noexcept

void swap (deque &__x) noexcept
Swaps data with another deque.

enum

typedef __gnu_cxx::__alloc_traits*< _Map_alloc_type > *_Map_alloc_traits

typedef _Alloc_traits::template rebind< _Ptr >::other _Map_alloc_type

typedef _Alloc_traits::pointer _Ptr

typedef _Alloc_traits::const_pointer _Ptr_const

template<typename _ForwardIterator > void _M_assign_aux (_ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag)

template<typename _InputIterator > void _M_assign_aux (_InputIterator __first, _InputIterator __last, std::input_iterator_tag)

void _M_default_append (size_type __n)

void _M_default_initialize ()

template<typename _Alloc1 > void _M_destroy_data (iterator __first, iterator __last, const _Alloc1 &)

void _M_destroy_data (iterator __first, iterator __last, const *std::allocator*< _Tp > &)

void _M_destroy_data_aux (iterator __first, iterator __last)

iterator _M_erase (iterator __first, iterator __last)

iterator _M_erase (iterator __pos)

void _M_erase_at_begin (iterator __pos)

void _M_erase_at_end (iterator __pos)

void _M_fill_assign (size_type __n, const value_type &__val)

void _M_fill_initialize (const value_type &__value)
Fills the deque with copies of value.

void _M_fill_insert (iterator __pos, size_type __n, const value_type &__x)

_Map_alloc_type _M_get_map_allocator () const noexcept

template<typename… _Args> iterator _M_insert_aux (iterator __pos, _Args &&… __args)

template<typename _ForwardIterator > void _M_insert_aux (iterator __pos, _ForwardIterator __first, _ForwardIterator __last, size_type __n)

void _M_insert_aux (iterator __pos, size_type __n, const value_type &__x)

void _M_move_assign1 (deque &&__x, false_type)

void _M_move_assign1 (deque &&__x, true_type) noexcept

void _M_move_assign2 (deque &&__x, false_type)

void _M_move_assign2 (deque &&__x, true_type)

void _M_range_check (size_type __n) const
Safety check used only from at().

template<typename _ForwardIterator > void _M_range_insert_aux (iterator __pos, _ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag)

template<typename _InputIterator > void _M_range_insert_aux (iterator __pos, _InputIterator __first, _InputIterator __last, std::input_iterator_tag)

template<typename… _Args> void _M_replace_map (_Args &&… __args)

bool _M_shrink_to_fit ()

template<typename _InputIterator > void _M_range_initialize (_InputIterator __first, _InputIterator __last, std::input_iterator_tag)
Fills the deque with whatever is in [first,last).

template<typename _ForwardIterator > void _M_range_initialize (_ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag)
Fills the deque with whatever is in [first,last).

template<typename… _Args> void _M_push_back_aux (_Args &&… __args)
Helper functions for push_* and pop_*.

template<typename… _Args> void _M_push_front_aux (_Args &&… __args)
Helper functions for push_* and pop_*.

void _M_pop_back_aux ()
Helper functions for push_* and pop_*.

void _M_pop_front_aux ()
Helper functions for push_* and pop_*.

iterator _M_reserve_elements_at_front (size_type __n)
Memory-handling helpers for the previous internal insert functions.

iterator _M_reserve_elements_at_back (size_type __n)
Memory-handling helpers for the previous internal insert functions.

void _M_new_elements_at_front (size_type __new_elements)
Memory-handling helpers for the previous internal insert functions.

void _M_new_elements_at_back (size_type __new_elements)
Memory-handling helpers for the previous internal insert functions.

void _M_reserve_map_at_back (size_type __nodes_to_add=1)
Memory-handling helpers for the major map.

void _M_reserve_map_at_front (size_type __nodes_to_add=1)
Memory-handling helpers for the major map.

void _M_reallocate_map (size_type __nodes_to_add, bool __add_at_front)
Memory-handling helpers for the major map.

static size_t _S_check_init_len (size_t __n, const allocator_type &__a)

static size_type _S_max_size (const _Tp_alloc_type &__a) noexcept

class std::deque< _Tp, _Alloc >“A standard container using fixed-size memory allocation and constant-time manipulation of elements at either end.

Template Parameters

_Tp Type of element.
_Alloc Allocator type, defaults to allocator<_Tp>.

Meets the requirements of a container, a reversible container, and a sequence, including the optional sequence requirements.

In previous HP/SGI versions of deque, there was an extra template parameter so users could control the node size. This extension turned out to violate the C++ standard (it can be detected using template template parameters), and it was removed.

Here’s how a deque<Tp> manages memory. Each deque has 4 members:

• Tp** _M_map
• size_t _M_map_size
• iterator _M_start, _M_finish

map_size is at least 8. map is an array of map_size pointers-to-nodes. (The name map has nothing to do with the std::map class, and nodes should not be confused with std::list’s usage of node.)

A node has no specific type name as such, but it is referred to as node in this file. It is a simple array-of-Tp. If Tp is very large, there will be one Tp element per node (i.e., an array of one). For non-huge Tp’s, node size is inversely related to Tp size: the larger the Tp, the fewer Tp’s will fit in a node. The goal here is to keep the total size of a node relatively small and constant over different Tp’s, to improve allocator efficiency.

Not every pointer in the map array will point to a node. If the initial number of elements in the deque is small, the middle map pointers will be valid, and the ones at the edges will be unused. This same situation will arise as the map grows: available map pointers, if any, will be on the ends. As new nodes are created, only a subset of the map’s pointers need to be copied outward.

Class invariants:

• For any nonsingular iterator i:
• i.node points to a member of the map array. (Yes, you read that correctly: i.node does not actually point to a node.) The member of the map array is what actually points to the node.
• i.first == *(i.node) (This points to the node (first Tp element).)
• i.last == i.first + node_size
• i.cur is a pointer in the range [i.first, i.last). NOTE: the implication of this is that i.cur is always a dereferenceable pointer, even if i is a past-the-end iterator.
• Start and Finish are always nonsingular iterators. NOTE: this means that an empty deque must have one node, a deque with <N elements (where N is the node buffer size) must have one node, a deque with N through (2N-1) elements must have two nodes, etc.
• For every node other than start.node and finish.node, every element in the node is an initialized object. If start.node == finish.node, then [start.cur, finish.cur) are initialized objects, and the elements outside that range are uninitialized storage. Otherwise, [start.cur, start.last) and [finish.first, finish.cur) are initialized objects, and [start.first, start.cur) and [finish.cur, finish.last) are uninitialized storage.
• [map, map + map_size) is a valid, non-empty range.
• [start.node, finish.node] is a valid range contained within [map, map
  • map_size).
• A pointer in the range [map, map + map_size) points to an allocated node if and only if the pointer is in the range [start.node, finish.node].

Here’s the magic: nothing in deque is aware of the discontiguous storage!

The memory setup and layout occurs in the parent, _Base, and the iterator class is entirely responsible for leaping from one node to the next. All the implementation routines for deque itself work only through the start and finish iterators. This keeps the routines simple and sane, and we can use other standard algorithms as well.

Definition at line 766 of file stl_deque.h.

std::_Deque_base*< _Tp, *std::allocator*< _Tp > >::*_Map_alloc_traits*= [protected]=, = [inherited]= Definition at line *425 of file stl_deque.h.

std::_Deque_base*< _Tp, *std::allocator*< _Tp > >::_Map_alloc_type= [protected]=, = [inherited]= Definition at line *424 of file stl_deque.h.

std::allocator*< _Tp > >::_Ptr= [protected]=, = [inherited]= Definition at line *419 of file stl_deque.h.

std::allocator*< _Tp > >::_Ptr_const= [protected]=, = [inherited]= Definition at line *420 of file stl_deque.h.

typedef _Alloc std::deque*< _Tp, _Alloc >::allocator_type Definition at line *803 of file stl_deque.h.

typedef _Base::const_iterator std::deque*< _Tp, _Alloc >::*const_iterator Definition at line 798 of file stl_deque.h.

typedef _Alloc_traits::const_pointer std::deque*< _Tp, _Alloc >::const_pointer Definition at line *794 of file stl_deque.h.

typedef _Alloc_traits::const_reference std::deque*< _Tp, _Alloc >::const_reference Definition at line *796 of file stl_deque.h.

typedef std::reverse_iterator*<*const_iterator*> *std::deque*< _Tp, _Alloc >::*const_reverse_iterator Definition at line 799 of file stl_deque.h.

typedef ptrdiff_t std::deque*< _Tp, _Alloc >::difference_type Definition at line *802 of file stl_deque.h.

typedef _Base::iterator std::deque*< _Tp, _Alloc >::*iterator Definition at line 797 of file stl_deque.h.

typedef _Alloc_traits::pointer std::deque*< _Tp, _Alloc >::pointer Definition at line *793 of file stl_deque.h.

typedef _Alloc_traits::reference std::deque*< _Tp, _Alloc >::reference Definition at line *795 of file stl_deque.h.

typedef std::reverse_iterator*<*iterator*> *std::deque*< _Tp, _Alloc >::*reverse_iterator Definition at line 800 of file stl_deque.h.

typedef size_t std::deque*< _Tp, _Alloc >::size_type Definition at line *801 of file stl_deque.h.

typedef _Tp std::deque*< _Tp, _Alloc >::value_type Definition at line *792 of file stl_deque.h.

Definition at line 589 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::*deque ()= [default]= Creates a deque with no elements.

std::deque*< _Tp, _Alloc >::*deque (const allocator_type & __a)= [inline]=, = [explicit]= Creates a deque with no elements.

Parameters

__a An allocator object.

Definition at line 843 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::*deque (size_type __n, const allocator_type & __a = allocator_type())= [inline]=, = [explicit]= Creates a deque with default constructed elements.

Parameters

__n The number of elements to initially create.
__a An allocator.

This constructor fills the deque with n default constructed elements.

Definition at line 856 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::*deque (size_type __n, const value_type & __value, const allocator_type & __a = allocator_type())= [inline]= Creates a deque with copies of an exemplar element.

Parameters

__n The number of elements to initially create.
__value An element to copy.
__a An allocator.

This constructor fills the deque with __n copies of __value.

Definition at line 868 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_fill_initialize().

std::deque*< _Tp, _Alloc >::*deque (const *deque*< _Tp, _Alloc > & __x)= [inline]= Deque copy constructor.

Parameters

__x A deque of identical element and allocator types.

The newly-created deque uses a copy of the allocator object used by __x (unless the allocator traits dictate a different object).

Definition at line 895 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::end().

std::deque*< _Tp, _Alloc >::*deque (*deque*< _Tp, _Alloc > &&)= [default]= Deque move constructor. The newly-created deque contains the exact contents of the moved instance. The contents of the moved instance are a valid, but unspecified deque.

std::deque*< _Tp, _Alloc >::*deque (const *deque*< _Tp, _Alloc > & __x, const allocator_type & __a)= [inline]= Copy constructor with alternative allocator.

Definition at line 914 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::end().

std::deque*< _Tp, _Alloc >::*deque (*deque*< _Tp, _Alloc > && __x, const allocator_type & __a)= [inline]= Move constructor with alternative allocator.

Definition at line 921 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::*deque (*initializer_list*< value_type > __l, const allocator_type & __a = allocator_type())= [inline]= Builds a deque from an initializer list.

Parameters

__l An initializer_list.
__a An allocator object.

Create a deque consisting of copies of the elements in the initializer_list __l.

This will call the element type’s copy constructor N times (where N is __l.size()) and do no memory reallocation.

Definition at line 954 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_range_initialize().

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> std::deque*< _Tp, _Alloc >::*deque (_InputIterator __first, _InputIterator __last, const allocator_type & __a = allocator_type())= [inline]= Builds a deque from a range.

Parameters

__first An input iterator.
__last An input iterator.
__a An allocator object.

Create a deque consisting of copies of the elements from [__first, __last).

If the iterators are forward, bidirectional, or random-access, then this will call the elements’ copy constructor N times (where N is distance(__first,__last)) and do no memory reallocation. But if only input iterators are used, then this will do at most 2N calls to the copy constructor, and logN memory reallocations.

Definition at line 981 of file stl_deque.h.

References std::__iterator_category(), and std::deque< _Tp, _Alloc >::_M_range_initialize().

std::deque*< _Tp, _Alloc >::~*deque ()= [inline]= 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.

Definition at line 1005 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::end().

template<typename _ForwardIterator > void std::deque*< _Tp, _Alloc >::_M_assign_aux (_ForwardIterator __first, _ForwardIterator __last, *std::forward_iterator_tag)= [inline]=, = [protected]= Definition at line 1913 of file stl_deque.h.

_InputIterator > void deque::_M_assign_aux (_InputIterator __first, _InputIterator __last, std::input_iterator_tag)= [protected]= Definition at line 291 of file deque.tcc.

deque::_M_default_append (size_type __n)= [protected]= Definition at line 350 of file deque.tcc.

deque::_M_default_initialize= [protected]= Definition at line 69 of file deque.tcc.

template<typename _Alloc1 > void std::deque*< _Tp, _Alloc >::_M_destroy_data (*iterator __first, iterator __last, const _Alloc1 &)= [inline]=, = [protected]= Definition at line 2040 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_destroy_data (*iterator __first, iterator __last, const std::allocator*< _Tp > &)= [inline]=, = [protected]= Definition at line *2044 of file stl_deque.h.

deque::_M_destroy_data_aux (iterator __first, iterator __last)= [protected]= Definition at line 856 of file deque.tcc.

>::*iterator* deque::_M_erase (iterator __first, iterator __last)= [protected]= Definition at line 258 of file deque.tcc.

>::*iterator* deque::_M_erase (iterator __pos)= [protected]= Definition at line 235 of file deque.tcc.

std::deque*< _Tp, _Alloc >::_M_erase_at_begin (*iterator __pos)= [inline]=, = [protected]= Definition at line 2053 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_erase_at_end (*iterator __pos)= [inline]=, = [protected]= Definition at line 2063 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_fill_assign (size_type __n, const value_type & __val)= [inline]=, = [protected]= Definition at line *1932 of file stl_deque.h.

deque::_M_fill_initialize (const value_type & __value)= [protected]= Fills the deque with copies of value.

Parameters

__value Initial value.

Returns

Nothing.

Precondition

_M_start and _M_finish have already been initialized, but none of the deque’s elements have yet been constructed.

This function is called only when the user provides an explicit size (with or without an explicit exemplar value).

Definition at line 393 of file deque.tcc.

References std::_Destroy().

Referenced by std::deque< _Tp, _Alloc >::deque().

(iterator __pos, size_type __n, const value_type & __x)= [protected]= Definition at line 307 of file deque.tcc.

>::_M_get_map_allocator () const= [inline]=, = [protected]=, = [noexcept]=, = [inherited]= Definition at line 554 of file stl_deque.h.

deque*< _Tp, _Alloc >::*iterator deque::_M_insert_aux (iterator __pos, _Args &&… __args)= [protected]= Definition at line 642 of file deque.tcc.

_ForwardIterator > void deque::_M_insert_aux (iterator __pos, _ForwardIterator __first, _ForwardIterator __last, size_type __n)= [protected]= Definition at line 768 of file deque.tcc.

(iterator __pos, size_type __n, const value_type & __x)= [protected]= Definition at line 682 of file deque.tcc.

std::deque*< _Tp, _Alloc >::_M_move_assign1 (*deque*< _Tp, _Alloc > && __x, *false_type)= [inline]=, = [protected]= Definition at line 2159 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_move_assign1 (*deque*< _Tp, _Alloc > && __x, *true_type)= [inline]=, = [protected]=, = [noexcept]= Definition at line 2148 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_move_assign2 (*deque*< _Tp, _Alloc > && __x, *false_type)= [inline]=, = [protected]= Definition at line 2203 of file stl_deque.h.

std::deque*< _Tp, _Alloc >::_M_move_assign2 (*deque*< _Tp, _Alloc > && __x, *true_type)= [inline]=, = [protected]= Definition at line 2189 of file stl_deque.h.

deque::_M_new_elements_at_back (size_type __new_elements)= [protected]= Memory-handling helpers for the previous internal insert functions.

Definition at line 903 of file deque.tcc.

References std::size().

Referenced by std::deque< _Tp, _Alloc >::_M_reserve_elements_at_back().

deque::_M_new_elements_at_front (size_type __new_elements)= [protected]= Memory-handling helpers for the previous internal insert functions.

Definition at line 878 of file deque.tcc.

References std::size().

Referenced by std::deque< _Tp, _Alloc >::_M_reserve_elements_at_front().

deque::_M_pop_back_aux= [protected]= Helper functions for push_* and pop_*.

Definition at line 557 of file deque.tcc.

deque::_M_pop_front_aux= [protected]= Helper functions for push_* and pop_*.

Definition at line 573 of file deque.tcc.

void deque::_M_push_back_aux (_Args &&… __args)= [protected]= Helper functions for push_* and pop_*.

Definition at line 481 of file deque.tcc.

References std::size().

Referenced by std::deque< _Tp, _Alloc >::push_back().

void deque::_M_push_front_aux (_Args &&… __args)= [protected]= Helper functions for push_* and pop_*.

Definition at line 520 of file deque.tcc.

References std::size().

Referenced by std::deque< _Tp, _Alloc >::push_front().

*std::deque*< _Tp, _Alloc >::_M_range_check (size_type __n) const= [inline]=, = [protected]= Safety check used only from at().

Definition at line 1353 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::size().

Referenced by std::deque< _Tp, _Alloc >::at().

_ForwardIterator > void deque::_M_range_initialize (_ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag)= [protected]= Fills the deque with whatever is in [first,last).

Parameters

__first An input iterator.
__last An input iterator.

Returns

Nothing.

If the iterators are actually forward iterators (or better), then the memory layout can be done all at once. Else we move forward using push_back on each value from the iterator.

Definition at line 443 of file deque.tcc.

References std::_Destroy().

_InputIterator > void deque::_M_range_initialize (_InputIterator __first, _InputIterator __last, std::input_iterator_tag)= [protected]= Fills the deque with whatever is in [first,last).

Parameters

__first An input iterator.
__last An input iterator.

Returns

Nothing.

If the iterators are actually forward iterators (or better), then the memory layout can be done all at once. Else we move forward using push_back on each value from the iterator.

Definition at line 419 of file deque.tcc.

Referenced by std::deque< _Tp, _Alloc >::deque().

_ForwardIterator > void deque::_M_range_insert_aux (iterator __pos, _ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag)= [protected]= Definition at line 595 of file deque.tcc.

_InputIterator > void deque::_M_range_insert_aux (iterator __pos, _InputIterator __first, _InputIterator __last, std::input_iterator_tag)= [protected]= Definition at line 586 of file deque.tcc.

deque::_M_reallocate_map (size_type __nodes_to_add, bool __add_at_front)= [protected]= Memory-handling helpers for the major map. Makes sure the _M_map has space for new nodes. Does not actually add the nodes. Can invalidate _M_map pointers. (And consequently, deque iterators.)

Definition at line 928 of file deque.tcc.

References std::max().

Referenced by std::deque< _Tp, _Alloc >::_M_reserve_map_at_back(), and std::deque< _Tp, _Alloc >::_M_reserve_map_at_front().

template<typename… _Args> void std::deque*< _Tp, _Alloc >::_M_replace_map (_Args &&… __args)= [inline]=, = [protected]= Definition at line *2173 of file stl_deque.h.

iterator *std::deque*< _Tp, _Alloc >::_M_reserve_elements_at_back (size_type __n)= [inline]=, = [protected]= Memory-handling helpers for the previous internal insert functions.

Definition at line 2099 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_new_elements_at_back().

iterator *std::deque*< _Tp, _Alloc >::_M_reserve_elements_at_front (size_type __n)= [inline]=, = [protected]= Memory-handling helpers for the previous internal insert functions.

Definition at line 2089 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_new_elements_at_front().

*std::deque*< _Tp, _Alloc >::_M_reserve_map_at_back (size_type __nodes_to_add = 1)= [inline]=, = [protected]= Memory-handling helpers for the major map. Makes sure the _M_map has space for new nodes. Does not actually add the nodes. Can invalidate _M_map pointers. (And consequently, deque iterators.)

Definition at line 2125 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_reallocate_map().

*std::deque*< _Tp, _Alloc >::_M_reserve_map_at_front (size_type __nodes_to_add = 1)= [inline]=, = [protected]= Memory-handling helpers for the major map. Makes sure the _M_map has space for new nodes. Does not actually add the nodes. Can invalidate _M_map pointers. (And consequently, deque iterators.)

Definition at line 2133 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_reallocate_map().

deque::_M_shrink_to_fit= [protected]= Definition at line 374 of file deque.tcc.

size_t std::deque*< _Tp, _Alloc >::_S_check_init_len (size_t __n, const allocator_type & __a)= [inline]=, = [static]=, = [protected]= Definition at line *1824 of file stl_deque.h.

size_type std::deque*< _Tp, _Alloc >::_S_max_size (const _Tp_alloc_type & __a)= [inline]=, = [static]=, = [protected]=, = [noexcept]= Definition at line *1833 of file stl_deque.h.

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> void *std::deque*< _Tp, _Alloc >::assign (_InputIterator __first, _InputIterator __last)= [inline]= Assigns a range to a deque.

Parameters

__first An input iterator.
__last An input iterator.

This function fills a deque with copies of the elements in the range [__first,__last).

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

Definition at line 1087 of file stl_deque.h.

References std::__iterator_category().

*std::deque*< _Tp, _Alloc >::assign (*initializer_list*< value_type > __l)= [inline]= Assigns an initializer list to a deque.

Parameters

__l An initializer_list.

This function fills a deque with copies of the elements in the initializer_list __l.

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

Definition at line 1112 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::assign (size_type __n, const value_type & __val)= [inline]= Assigns a given value to a deque.

Parameters

__n Number of elements to be assigned.
__val Value to be assigned.

This function fills a deque with n copies of the given value. Note that the assignment completely changes the deque and that the resulting deque’s size is the same as the number of elements assigned.

Definition at line 1068 of file stl_deque.h.

reference *std::deque*< _Tp, _Alloc >::at (size_type __n)= [inline]= Provides access to the data contained in the deque.

Parameters

__n The index of the element for which data should be accessed.

Returns

Read/write reference to data.

Exceptions

std::out_of_range If __n is an invalid index.

This function provides for safer data access. The parameter is first checked that it is in the range of the deque. The function throws out_of_range if the check fails.

Definition at line 1375 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_range_check().

const_reference *std::deque*< _Tp, _Alloc >::at (size_type __n) const= [inline]= Provides access to the data contained in the deque.

Parameters

__n The index of the element for which data should be accessed.

Returns

Read-only (constant) reference to data.

Exceptions

std::out_of_range If __n is an invalid index.

This function provides for safer data access. The parameter is first checked that it is in the range of the deque. The function throws out_of_range if the check fails.

Definition at line 1393 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_range_check().

const_reference *std::deque*< _Tp, _Alloc >::back () const= [inline]=, = [noexcept]= Returns a read-only (constant) reference to the data at the last element of the deque.

Definition at line 1439 of file stl_deque.h.

reference *std::deque*< _Tp, _Alloc >::back ()= [inline]=, = [noexcept]= Returns a read/write reference to the data at the last element of the deque.

Definition at line 1426 of file stl_deque.h.

const_iterator *std::deque*< _Tp, _Alloc >::begin () const= [inline]=, = [noexcept]= Returns a read-only (constant) iterator that points to the first element in the deque. Iteration is done in ordinary element order.

Definition at line 1135 of file stl_deque.h.

iterator *std::deque*< _Tp, _Alloc >::begin ()= [inline]=, = [noexcept]= Returns a read/write iterator that points to the first element in the deque. Iteration is done in ordinary element order.

Definition at line 1127 of file stl_deque.h.

Referenced by std::deque< _Tp, _Alloc >::deque(), std::deque< _Tp, _Alloc >::~deque(), std::deque< _Tp, _Alloc >::clear(), std::deque< _Tp, _Alloc >::insert(), std::operator<(), std::deque< _Tp, _Alloc >::operator=(), and std::operator==().

const_iterator *std::deque*< _Tp, _Alloc >::cbegin () const= [inline]=, = [noexcept]= Returns a read-only (constant) iterator that points to the first element in the deque. Iteration is done in ordinary element order.

Definition at line 1198 of file stl_deque.h.

Referenced by std::deque< _Tp, _Alloc >::insert().

const_iterator *std::deque*< _Tp, _Alloc >::cend () const= [inline]=, = [noexcept]= Returns a read-only (constant) iterator that points one past the last element in the deque. Iteration is done in ordinary element order.

Definition at line 1207 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::clear ()= [inline]=, = [noexcept]= Erases all the elements. 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 1792 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin().

const_reverse_iterator *std::deque*< _Tp, _Alloc >::crbegin () const= [inline]=, = [noexcept]= Returns a read-only (constant) reverse iterator that points to the last element in the deque. Iteration is done in reverse element order.

Definition at line 1216 of file stl_deque.h.

const_reverse_iterator *std::deque*< _Tp, _Alloc >::crend () const= [inline]=, = [noexcept]= Returns a read-only (constant) reverse iterator that points to one before the first element in the deque. Iteration is done in reverse element order.

Definition at line 1225 of file stl_deque.h.

deque*< _Tp, _Alloc >::*iterator deque::emplace (const_iterator __position, _Args &&… __args) Inserts an object in deque before specified iterator.

Parameters

__position A const_iterator into the deque.
__args Arguments.

Returns

An iterator that points to the inserted data.

This function will insert an object of type T constructed with T(std::forward<Args>(args)…) before the specified location.

Definition at line 187 of file deque.tcc.

Referenced by std::deque< _Tp, _Alloc >::insert().

deque*< _Tp, _Alloc >::reference deque::emplace_back (_Args &&… __args) Definition at line *164 of file deque.tcc.

deque*< _Tp, _Alloc >::reference deque::emplace_front (_Args &&… __args) Definition at line *140 of file deque.tcc.

*std::deque*< _Tp, _Alloc >::empty () const= [inline]=, = [noexcept]= Returns true if the deque is empty. (Thus begin() would equal end().)

Definition at line 1310 of file stl_deque.h.

const_iterator *std::deque*< _Tp, _Alloc >::end () const= [inline]=, = [noexcept]= Returns a read-only (constant) iterator that points one past the last element in the deque. Iteration is done in ordinary element order.

Definition at line 1153 of file stl_deque.h.

iterator *std::deque*< _Tp, _Alloc >::end ()= [inline]=, = [noexcept]= Returns a read/write iterator that points one past the last element in the deque. Iteration is done in ordinary element order.

Definition at line 1144 of file stl_deque.h.

Referenced by std::deque< _Tp, _Alloc >::deque(), std::deque< _Tp, _Alloc >::~deque(), std::operator<(), std::deque< _Tp, _Alloc >::operator=(), and std::operator==().

iterator std::deque*< _Tp, _Alloc >::erase (*const_iterator __first, const_iterator __last)= [inline]= Remove a range of elements.

Parameters

__first Iterator pointing to the first element to be erased.
__last Iterator pointing to one past the last element to be erased.

Returns

An iterator pointing to the element pointed to by last prior to erasing (or end()).

This function will erase the elements in the range [__first,__last) and shorten the deque accordingly.

The user is cautioned 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 1756 of file stl_deque.h.

iterator std::deque*< _Tp, _Alloc >::erase (*const_iterator __position)= [inline]= Remove element at given position.

Parameters

__position Iterator pointing to element to be erased.

Returns

An iterator pointing to the next element (or end()).

This function will erase the element at the given position and thus shorten the deque by one.

The user is cautioned 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 1732 of file stl_deque.h.

const_reference *std::deque*< _Tp, _Alloc >::front () const= [inline]=, = [noexcept]= Returns a read-only (constant) reference to the data at the first element of the deque.

Definition at line 1415 of file stl_deque.h.

reference *std::deque*< _Tp, _Alloc >::front ()= [inline]=, = [noexcept]= Returns a read/write reference to the data at the first element of the deque.

Definition at line 1404 of file stl_deque.h.

allocator_type *std::deque*< _Tp, _Alloc >::get_allocator () const= [inline]=, = [noexcept]= Get a copy of the memory allocation object.

Definition at line 1118 of file stl_deque.h.

Referenced by std::deque< _Tp, _Alloc >::operator=().

iterator std::deque*< _Tp, _Alloc >::insert (*const_iterator __p, *initializer_list*< value_type > __l)= [inline]= Inserts an initializer list into the deque.

Parameters

__p An iterator into the deque.
__l An initializer_list.

Returns

An iterator that points to the inserted data.

This function will insert copies of the data in the initializer_list __l into the deque before the location specified by __p. This is known as list insert.

Definition at line 1632 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::cbegin().

template<typename _InputIterator , typename = std::_RequireInputIter<_InputIterator>> iterator std::deque*< _Tp, _Alloc >::insert (*const_iterator __position, _InputIterator __first, _InputIterator __last)= [inline]= Inserts a range into the deque.

Parameters

__position A const_iterator into the deque.
__first An input iterator.
__last An input iterator.

Returns

An iterator that points to the inserted data.

This function will insert copies of the data in the range [__first,__last) into the deque before the location specified by __position. This is known as range insert.

Definition at line 1687 of file stl_deque.h.

References std::__iterator_category(), std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::cbegin().

>::*iterator* deque::insert (const_iterator __position, const value_type & __x) Inserts given value into deque before specified iterator.

Parameters

__position A const_iterator into the deque.
__x Data to be inserted.

Returns

An iterator that points to the inserted data.

This function will insert a copy of the given value before the specified location.

Definition at line 210 of file deque.tcc.

iterator std::deque*< _Tp, _Alloc >::insert (*const_iterator __position, size_type __n, const value_type & __x)= [inline]= Inserts a number of copies of given data into the deque.

Parameters

__position A const_iterator into the deque.
__n Number of elements to be inserted.
__x Data to be inserted.

Returns

An iterator that points to the inserted data.

This function will insert a specified number of copies of the given data before the location specified by __position.

Definition at line 1651 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::begin(), and std::deque< _Tp, _Alloc >::cbegin().

iterator std::deque*< _Tp, _Alloc >::insert (*const_iterator __position, value_type && __x)= [inline]= Inserts given rvalue into deque before specified iterator.

Parameters

__position A const_iterator into the deque.
__x Data to be inserted.

Returns

An iterator that points to the inserted data.

This function will insert a copy of the given rvalue before the specified location.

Definition at line 1618 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::emplace(), and std::move().

size_type *std::deque*< _Tp, _Alloc >::max_size () const= [inline]=, = [noexcept]= Returns the size() of the largest possible deque.

Definition at line 1237 of file stl_deque.h.

deque::operator= (const *deque*< _Tp, _Alloc > & __x) Deque assignment operator.

Parameters

__x A deque of identical element and allocator types.

All the elements of x are copied.

The newly-created deque uses a copy of the allocator object used by __x (unless the allocator traits dictate a different object).

Definition at line 95 of file deque.tcc.

References std::deque< _Tp, _Alloc >::begin(), std::deque< _Tp, _Alloc >::end(), std::deque< _Tp, _Alloc >::get_allocator(), std::deque< _Tp, _Alloc >::size(), and std::size().

deque & *std::deque*< _Tp, _Alloc >::operator= (*deque*< _Tp, _Alloc > && __x)= [inline]=, = [noexcept]= Deque move assignment operator.

Parameters

__x A deque of identical element and allocator types.

The contents of __x are moved into this deque (without copying, if the allocators permit it). __x is a valid, but unspecified deque.

Definition at line 1030 of file stl_deque.h.

References std::move().

deque & *std::deque*< _Tp, _Alloc >::operator= (*initializer_list*< value_type > __l)= [inline]= Assigns an initializer list to a deque.

Parameters

__l An initializer_list.

This function fills a deque with copies of the elements in the initializer_list __l.

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

Definition at line 1049 of file stl_deque.h.

const_reference *std::deque*< _Tp, _Alloc >::operator[] (size_type __n) const= [inline]=, = [noexcept]= Subscript access to the data contained in the deque.

Parameters

__n The index of the element for which data should be accessed.

Returns

Read-only (constant) reference to data.

This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().)

Definition at line 1344 of file stl_deque.h.

reference *std::deque*< _Tp, _Alloc >::operator[] (size_type __n)= [inline]=, = [noexcept]= Subscript access to the data contained in the deque.

Parameters

__n The index of the element for which data should be accessed.

Returns

Read/write reference to data.

This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().)

Definition at line 1326 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::pop_back ()= [inline]=, = [noexcept]= Removes last element. This is a typical stack operation. It shrinks the deque by one.

Note that no data is returned, and if the last element’s data is needed, it should be retrieved before pop_back() is called.

Definition at line 1554 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::pop_front ()= [inline]=, = [noexcept]= Removes first element. This is a typical stack operation. It shrinks the deque by one.

Note that no data is returned, and if the first element’s data is needed, it should be retrieved before pop_front() is called.

Definition at line 1531 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::push_back (const value_type & __x)= [inline]= Add data to the end of the deque.

Parameters

__x Data to be added.

This is a typical stack operation. The function creates an element at the end of the deque and assigns the given data to it. Due to the nature of a deque this operation can be done in constant time.

Definition at line 1495 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_push_back_aux().

std::deque*< _Tp, _Alloc >::push_back (value_type && __x)= [inline]= Definition at line *1510 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::push_front (const value_type & __x)= [inline]= Add data to the front of the deque.

Parameters

__x Data to be added.

This is a typical stack operation. The function creates an element at the front of the deque and assigns the given data to it. Due to the nature of a deque this operation can be done in constant time.

Definition at line 1458 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::_M_push_front_aux().

std::deque*< _Tp, _Alloc >::push_front (value_type && __x)= [inline]= Definition at line *1473 of file stl_deque.h.

const_reverse_iterator *std::deque*< _Tp, _Alloc >::rbegin () const= [inline]=, = [noexcept]= Returns a read-only (constant) reverse iterator that points to the last element in the deque. Iteration is done in reverse element order.

Definition at line 1171 of file stl_deque.h.

reverse_iterator *std::deque*< _Tp, _Alloc >::rbegin ()= [inline]=, = [noexcept]= Returns a read/write reverse iterator that points to the last element in the deque. Iteration is done in reverse element order.

Definition at line 1162 of file stl_deque.h.

const_reverse_iterator *std::deque*< _Tp, _Alloc >::rend () const= [inline]=, = [noexcept]= Returns a read-only (constant) reverse iterator that points to one before the first element in the deque. Iteration is done in reverse element order.

Definition at line 1189 of file stl_deque.h.

reverse_iterator *std::deque*< _Tp, _Alloc >::rend ()= [inline]=, = [noexcept]= Returns a read/write reverse iterator that points to one before the first element in the deque. Iteration is done in reverse element order.

Definition at line 1180 of file stl_deque.h.

*std::deque*< _Tp, _Alloc >::resize (size_type __new_size)= [inline]= Resizes the deque to the specified number of elements.

Parameters

__new_size Number of elements the deque should contain.

This function will resize the deque to the specified number of elements. If the number is smaller than the deque’s current size the deque is truncated, otherwise default constructed elements are appended.

Definition at line 1251 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::size().

*std::deque*< _Tp, _Alloc >::resize (size_type __new_size, const value_type & __x)= [inline]= Resizes the deque to the specified number of elements.

Parameters

__new_size Number of elements the deque should contain.
__x Data with which new elements should be populated.

This function will resize the deque to the specified number of elements. If the number is smaller than the deque’s current size the deque is truncated, otherwise the deque is extended and new elements are populated with given data.

Definition at line 1273 of file stl_deque.h.

References std::deque< _Tp, _Alloc >::size().

*std::deque*< _Tp, _Alloc >::shrink_to_fit ()= [inline]=, = [noexcept]= A non-binding request to reduce memory use.

Definition at line 1301 of file stl_deque.h.

size_type *std::deque*< _Tp, _Alloc >::size () const= [inline]=, = [noexcept]= Returns the number of elements in the deque.

Definition at line 1232 of file stl_deque.h.

Referenced by std::deque< _Tp, _Alloc >::_M_range_check(), std::deque< _Tp, _Alloc >::operator=(), std::operator==(), and std::deque< _Tp, _Alloc >::resize().

*std::deque*< _Tp, _Alloc >::swap (*deque*< _Tp, _Alloc > & __x)= [inline]=, = [noexcept]= Swaps data with another deque.

Parameters

__x A deque of the same element and allocator types.

This exchanges the elements between two deques in constant time. (Four pointers, so it should be quite fast.) Note that the global std::swap() function is specialized such that std::swap(d1,d2) will feed to this function.

Whether the allocators are swapped depends on the allocator traits.

Definition at line 1774 of file stl_deque.h.