#include <vector>

Inheritance diagram for std::vector< _Tp, _Alloc >:

Public Types
typedef _Alloc	allocator_type

typedef __gnu_cxx::__normal_iterator< const_pointer, vector >	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 __gnu_cxx::__normal_iterator< pointer, vector >	iterator

typedef _Base::pointer	pointer

typedef _Alloc_traits::reference	reference

typedef std::reverse_iterator< iterator >	reverse_iterator

typedef size_t	size_type

typedef _Tp	value_type

Public Member Functions
	vector ()=default

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>
constexpr	vector (_InputIterator __first, _InputIterator __last, const allocator_type &__a=allocator_type())

constexpr	vector (const allocator_type &__a) noexcept

constexpr	vector (const vector &__x)

constexpr	vector (const vector &__x, const __type_identity_t< allocator_type > &__a)

constexpr	vector (initializer_list< value_type > __l, const allocator_type &__a=allocator_type())

constexpr	vector (size_type __n, const allocator_type &__a=allocator_type())

constexpr	vector (size_type __n, const value_type &__value, const allocator_type &__a=allocator_type())

	vector (vector &&) noexcept=default

constexpr	vector (vector &&__rv, const __type_identity_t< allocator_type > &__m) noexcept(noexcept(vector(std::declval< vector && >(), std::declval< const allocator_type & >(), std::declval< typename _Alloc_traits::is_always_equal >())))

constexpr	~vector () noexcept

template<typename... _Args>
constexpr auto	_M_emplace_aux (const_iterator __position, _Args &&... __args) -> iterator

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>
constexpr void	assign (_InputIterator __first, _InputIterator __last)

constexpr void	assign (initializer_list< value_type > __l)

constexpr void	assign (size_type __n, const value_type &__val)

constexpr reference	at (size_type __n)

constexpr const_reference	at (size_type __n) const

constexpr const_reference	back () const noexcept

constexpr reference	back () noexcept

constexpr const_iterator	begin () const noexcept

constexpr iterator	begin () noexcept

constexpr size_type	capacity () const noexcept

constexpr const_iterator	cbegin () const noexcept

constexpr const_iterator	cend () const noexcept

constexpr void	clear () noexcept

constexpr const_reverse_iterator	crbegin () const noexcept

constexpr const_reverse_iterator	crend () const noexcept

constexpr const _Tp *	data () const noexcept

constexpr _Tp *	data () noexcept

template<typename... _Args>
constexpr iterator	emplace (const_iterator __position, _Args &&... __args)

template<typename... _Args>
constexpr reference	emplace_back (_Args &&... __args)

constexpr bool	empty () const noexcept

constexpr const_iterator	end () const noexcept

constexpr iterator	end () noexcept

constexpr iterator	erase (const_iterator __first, const_iterator __last)

constexpr iterator	erase (const_iterator __position)

constexpr const_reference	front () const noexcept

constexpr reference	front () noexcept

constexpr allocator_type	get_allocator () const noexcept

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>
constexpr iterator	insert (const_iterator __position, _InputIterator __first, _InputIterator __last)

constexpr iterator	insert (const_iterator __position, const value_type &__x)

constexpr iterator	insert (const_iterator __position, initializer_list< value_type > __l)

constexpr iterator	insert (const_iterator __position, size_type __n, const value_type &__x)

constexpr iterator	insert (const_iterator __position, value_type &&__x)

constexpr size_type	max_size () const noexcept

constexpr vector &	operator= (const vector &__x)

constexpr vector &	operator= (initializer_list< value_type > __l)

constexpr vector &	operator= (vector &&__x) noexcept(_Alloc_traits::_S_nothrow_move())

constexpr const_reference	operator[] (size_type __n) const noexcept

constexpr reference	operator[] (size_type __n) noexcept

constexpr void	pop_back () noexcept

constexpr void	push_back (const value_type &__x)

constexpr void	push_back (value_type &&__x)

constexpr const_reverse_iterator	rbegin () const noexcept

constexpr reverse_iterator	rbegin () noexcept

constexpr const_reverse_iterator	rend () const noexcept

constexpr reverse_iterator	rend () noexcept

constexpr void	reserve (size_type __n)

constexpr void	resize (size_type __new_size)

constexpr void	resize (size_type __new_size, const value_type &__x)

constexpr void	shrink_to_fit ()

constexpr size_type	size () const noexcept

constexpr void	swap (vector &__x) noexcept

Protected Member Functions
constexpr pointer	_M_allocate (size_t __n)

template<typename _ForwardIterator>
constexpr pointer	_M_allocate_and_copy (size_type __n, _ForwardIterator __first, _ForwardIterator __last)

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

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

template<typename _InputIterator>
constexpr void	_M_assign_dispatch (_InputIterator __first, _InputIterator __last, __false_type)

template<typename _Integer>
constexpr void	_M_assign_dispatch (_Integer __n, _Integer __val, __true_type)

constexpr size_type	_M_check_len (size_type __n, const char *__s) const

constexpr void	_M_create_storage (size_t __n)

constexpr void	_M_deallocate (pointer __p, size_t __n)

constexpr void	_M_default_append (size_type __n)

constexpr void	_M_default_initialize (size_type __n)

template<typename... _Args>
constexpr iterator	_M_emplace_aux (const_iterator __position, _Args &&... __args)

constexpr iterator	_M_emplace_aux (const_iterator __position, value_type &&__v)

constexpr iterator	_M_erase (iterator __first, iterator __last)

constexpr iterator	_M_erase (iterator __position)

constexpr void	_M_erase_at_end (pointer __pos) noexcept

constexpr void	_M_fill_append (size_type __n, const value_type &__x)

constexpr void	_M_fill_assign (size_type __n, const value_type &__val)

constexpr void	_M_fill_initialize (size_type __n, const value_type &__value)

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

constexpr const _Tp_alloc_type &	_M_get_Tp_allocator () const noexcept

constexpr _Tp_alloc_type &	_M_get_Tp_allocator () noexcept

template<typename _Arg>
constexpr void	_M_insert_aux (iterator __position, _Arg &&__arg)

template<typename _InputIterator>
constexpr void	_M_insert_dispatch (iterator __pos, _InputIterator __first, _InputIterator __last, __false_type)

template<typename _Integer>
constexpr void	_M_insert_dispatch (iterator __pos, _Integer __n, _Integer __val, __true_type)

constexpr iterator	_M_insert_rval (const_iterator __position, value_type &&__v)

constexpr void	_M_range_check (size_type __n) const

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

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

template<typename _Iterator, typename _Sentinel>
constexpr void	_M_range_initialize_n (_Iterator __first, _Sentinel __last, size_type __n)

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

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

template<typename... _Args>
constexpr void	_M_realloc_append (_Args &&... __args)

template<typename... _Args>
constexpr void	_M_realloc_insert (iterator __position, _Args &&... __args)

constexpr bool	_M_shrink_to_fit ()

Static Protected Member Functions
static constexpr size_type	_S_check_init_len (size_type __n, const allocator_type &__a)

static constexpr size_type	_S_max_size (const _Tp_alloc_type &__a) noexcept

Protected Attributes
_Vector_impl	_M_impl

Detailed Description

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>
class std::vector< _Tp, _Alloc >

A standard container which offers fixed time access to individual elements in any order.

Since: C++98

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 with the exception of push_front and pop_front.

In some terminology a vector can be described as a dynamic C-style array, it offers fast and efficient access to individual elements in any order and saves the user from worrying about memory and size allocation. Subscripting ( [] ) access is also provided as with C-style arrays.

Definition at line 460 of file stl_vector.h.

Member Typedef Documentation

◆ allocator_type

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Alloc std::vector< _Tp, _Alloc >::allocator_type

Definition at line 497 of file stl_vector.h.

◆ const_iterator

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef __gnu_cxx::__normal_iterator<const_pointer, vector> std::vector< _Tp, _Alloc >::const_iterator

Definition at line 492 of file stl_vector.h.

◆ const_pointer

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Alloc_traits::const_pointer std::vector< _Tp, _Alloc >::const_pointer

Definition at line 487 of file stl_vector.h.

◆ const_reference

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Alloc_traits::const_reference std::vector< _Tp, _Alloc >::const_reference

Definition at line 489 of file stl_vector.h.

◆ const_reverse_iterator

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef std::reverse_iterator<const_iterator> std::vector< _Tp, _Alloc >::const_reverse_iterator

Definition at line 493 of file stl_vector.h.

◆ difference_type

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef ptrdiff_t std::vector< _Tp, _Alloc >::difference_type

Definition at line 496 of file stl_vector.h.

◆ iterator

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef __gnu_cxx::__normal_iterator<pointer, vector> std::vector< _Tp, _Alloc >::iterator

Definition at line 490 of file stl_vector.h.

◆ pointer

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Base::pointer std::vector< _Tp, _Alloc >::pointer

Definition at line 486 of file stl_vector.h.

◆ reference

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Alloc_traits::reference std::vector< _Tp, _Alloc >::reference

Definition at line 488 of file stl_vector.h.

◆ reverse_iterator

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef std::reverse_iterator<iterator> std::vector< _Tp, _Alloc >::reverse_iterator

Definition at line 494 of file stl_vector.h.

◆ size_type

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef size_t std::vector< _Tp, _Alloc >::size_type

Definition at line 495 of file stl_vector.h.

◆ value_type

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

typedef _Tp std::vector< _Tp, _Alloc >::value_type

Definition at line 485 of file stl_vector.h.

Constructor & Destructor Documentation

◆ vector() [1/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector ( )

default

Creates a vector with no elements.

Referenced by insert(), and operator=().

◆ vector() [2/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector ( const allocator_type & __a )

inlineexplicitconstexprnoexcept

Creates a vector with no elements.

Parameters

__a	An allocator object.

Definition at line 562 of file stl_vector.h.

◆ vector() [3/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector	(	size_type	__n,
		const allocator_type &	__a = allocator_type() )

inlineexplicitconstexpr

Creates a vector with default constructed elements.

Parameters

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

This constructor fills the vector with __n default constructed elements.

Definition at line 576 of file stl_vector.h.

◆ vector() [4/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector	(	size_type	__n,
		const value_type &	__value,
		const allocator_type &	__a = allocator_type() )

inlineconstexpr

Creates a vector 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 vector with __n copies of __value.

Definition at line 589 of file stl_vector.h.

◆ vector() [5/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector ( const vector< _Tp, _Alloc > & __x )

inlineconstexpr

Vector copy constructor.

Parameters

__x	A vector of identical element and allocator types.

All the elements of __x are copied, but any unused capacity in __x will not be copied (i.e. capacity() == size() in the new vector).

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

Definition at line 621 of file stl_vector.h.

◆ vector() [6/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector ( vector< _Tp, _Alloc > && )

defaultnoexcept

Vector move constructor.

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

◆ vector() [7/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector	(	const vector< _Tp, _Alloc > &	__x,
		const __type_identity_t< allocator_type > &	__a )

inlineconstexpr

Copy constructor with alternative allocator.

Definition at line 644 of file stl_vector.h.

◆ vector() [8/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector	(	vector< _Tp, _Alloc > &&	__rv,
		const __type_identity_t< allocator_type > &	__m )

inlineconstexprnoexcept

Move constructor with alternative allocator.

Definition at line 679 of file stl_vector.h.

◆ vector() [9/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::vector	(	initializer_list< value_type >	__l,
		const allocator_type &	__a = allocator_type() )

inlineconstexpr

Builds a vector from an initializer list.

Parameters

__l	An initializer_list.
__a	An allocator.

Create a vector 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 698 of file stl_vector.h.

◆ vector() [10/10]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>

std::vector< _Tp, _Alloc >::vector	(	_InputIterator	__first,
		_InputIterator	__last,
		const allocator_type &	__a = allocator_type() )

inlineconstexpr

Builds a vector from a range.

Parameters

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

Create a vector 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 726 of file stl_vector.h.

◆ ~vector()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

std::vector< _Tp, _Alloc >::~vector ( )

inlineconstexprnoexcept

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 790 of file stl_vector.h.

Member Function Documentation

◆ _M_allocate()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

pointer std::_Vector_base< _Tp, _Alloc >::_M_allocate ( size_t __n )

inlineconstexprprotected

Definition at line 386 of file stl_vector.h.

◆ _M_allocate_and_copy()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _ForwardIterator>

pointer std::vector< _Tp, _Alloc >::_M_allocate_and_copy	(	size_type	__n,
		_ForwardIterator	__first,
		_ForwardIterator	__last )

inlineconstexprprotected

Memory expansion handler. Uses the member allocation function to obtain n bytes of memory, and then copies [first,last) into it.

Definition at line 1897 of file stl_vector.h.

Referenced by operator=(), and reserve().

◆ _M_assign_aux() [1/2]

template<typename _Tp, typename _Alloc>

template<typename _ForwardIterator>

void vector::_M_assign_aux	(	_ForwardIterator	__first,
		_ForwardIterator	__last,
		std::forward_iterator_tag	)

constexprprotected

Definition at line 322 of file vector.tcc.

◆ _M_assign_aux() [2/2]

template<typename _Tp, typename _Alloc>

template<typename _InputIterator>

void vector::_M_assign_aux	(	_InputIterator	__first,
		_InputIterator	__last,
		std::input_iterator_tag	)

constexprprotected

Definition at line 303 of file vector.tcc.

◆ _M_assign_dispatch() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator>

void std::vector< _Tp, _Alloc >::_M_assign_dispatch	(	_InputIterator	__first,
		_InputIterator	__last,
		__false_type	)

inlineconstexprprotected

Definition at line 2023 of file stl_vector.h.

◆ _M_assign_dispatch() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _Integer>

void std::vector< _Tp, _Alloc >::_M_assign_dispatch	(	_Integer	__n,
		_Integer	__val,
		__true_type	)

inlineconstexprprotected

Definition at line 2016 of file stl_vector.h.

◆ _M_check_len()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

size_type std::vector< _Tp, _Alloc >::_M_check_len	(	size_type	__n,
		const char *	__s ) const

inlineconstexprprotected

Definition at line 2192 of file stl_vector.h.

◆ _M_create_storage()

template<typename _Tp, typename _Alloc>

void std::_Vector_base< _Tp, _Alloc >::_M_create_storage ( size_t __n )

inlineconstexprprotectedinherited

Definition at line 405 of file stl_vector.h.

◆ _M_deallocate()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::_Vector_base< _Tp, _Alloc >::_M_deallocate	(	pointer	__p,
		size_t	__n )

inlineconstexprprotected

Definition at line 394 of file stl_vector.h.

◆ _M_default_append()

template<typename _Tp, typename _Alloc>

void vector::_M_default_append ( size_type __n )

constexprprotected

Definition at line 825 of file vector.tcc.

◆ _M_default_initialize()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::_M_default_initialize ( size_type __n )

inlineconstexprprotected

Definition at line 1998 of file stl_vector.h.

◆ _M_emplace_aux() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename... _Args>

auto std::vector< _Tp, _Alloc >::_M_emplace_aux	(	const_iterator	__position,
		_Args &&...	__args ) -> iterator

constexpr

Definition at line 392 of file vector.tcc.

◆ _M_emplace_aux() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::_M_emplace_aux	(	const_iterator	__position,
		value_type &&	__v )

inlineconstexprprotected

Definition at line 2185 of file stl_vector.h.

◆ _M_erase() [1/2]

template<typename _Tp, typename _Alloc>

vector< _Tp, _Alloc >::iterator vector::_M_erase	(	iterator	__first,
		iterator	__last )

constexprprotected

Definition at line 199 of file vector.tcc.

◆ _M_erase() [2/2]

template<typename _Tp, typename _Alloc>

vector< _Tp, _Alloc >::iterator vector::_M_erase ( iterator __position )

constexprprotected

Definition at line 185 of file vector.tcc.

◆ _M_erase_at_end()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::_M_erase_at_end ( pointer __pos )

inlineconstexprprotectednoexcept

Definition at line 2229 of file stl_vector.h.

◆ _M_fill_append()

template<typename _Tp, typename _Alloc>

void vector::_M_fill_append	(	size_type	__n,
		const value_type &	__x )

constexprprotected

Definition at line 768 of file vector.tcc.

◆ _M_fill_assign()

template<typename _Tp, typename _Alloc>

void vector::_M_fill_assign	(	size_type	__n,
		const value_type &	__val )

constexprprotected

Definition at line 274 of file vector.tcc.

◆ _M_fill_initialize()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::_M_fill_initialize	(	size_type	__n,
		const value_type &	__value )

inlineconstexprprotected

Definition at line 1987 of file stl_vector.h.

◆ _M_fill_insert()

template<typename _Tp, typename _Alloc>

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

constexprprotected

Definition at line 662 of file vector.tcc.

◆ _M_get_Tp_allocator() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const _Tp_alloc_type & std::_Vector_base< _Tp, _Alloc >::_M_get_Tp_allocator ( ) const

inlineconstexprprotectednoexcept

Definition at line 312 of file stl_vector.h.

◆ _M_get_Tp_allocator() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

_Tp_alloc_type & std::_Vector_base< _Tp, _Alloc >::_M_get_Tp_allocator ( )

inlineconstexprprotectednoexcept

Definition at line 307 of file stl_vector.h.

◆ _M_insert_aux()

template<typename _Tp, typename _Alloc>

template<typename _Arg>

void vector::_M_insert_aux	(	iterator	__position,
		_Arg &&	__arg )

constexprprotected

Definition at line 424 of file vector.tcc.

◆ _M_insert_dispatch() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator>

void std::vector< _Tp, _Alloc >::_M_insert_dispatch	(	iterator	__pos,
		_InputIterator	__first,
		_InputIterator	__last,
		__false_type	)

inlineconstexprprotected

Definition at line 2064 of file stl_vector.h.

◆ _M_insert_dispatch() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _Integer>

void std::vector< _Tp, _Alloc >::_M_insert_dispatch	(	iterator	__pos,
		_Integer	__n,
		_Integer	__val,
		__true_type	)

inlineconstexprprotected

Definition at line 2056 of file stl_vector.h.

◆ _M_insert_rval()

template<typename _Tp, typename _Alloc>

auto vector::_M_insert_rval	(	const_iterator	__position,
		value_type &&	__v )

constexprprotected

Definition at line 367 of file vector.tcc.

◆ _M_range_check()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::_M_range_check ( size_type __n ) const

inlineconstexprprotected

Safety check used only from at().

Definition at line 1280 of file stl_vector.h.

Referenced by std::vector< _Tp, polymorphic_allocator< _Tp > >::at(), and std::vector< _Tp, polymorphic_allocator< _Tp > >::at().

◆ _M_range_initialize() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _ForwardIterator>

void std::vector< _Tp, _Alloc >::_M_range_initialize	(	_ForwardIterator	__first,
		_ForwardIterator	__last,
		std::forward_iterator_tag	)

inlineconstexprprotected

Definition at line 1961 of file stl_vector.h.

◆ _M_range_initialize() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator>

void std::vector< _Tp, _Alloc >::_M_range_initialize	(	_InputIterator	__first,
		_InputIterator	__last,
		std::input_iterator_tag	)

inlineconstexprprotected

Definition at line 1941 of file stl_vector.h.

◆ _M_range_initialize_n()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _Iterator, typename _Sentinel>

void std::vector< _Tp, _Alloc >::_M_range_initialize_n	(	_Iterator	__first,
		_Sentinel	__last,
		size_type	__n )

inlineconstexprprotected

Definition at line 1971 of file stl_vector.h.

◆ _M_range_insert() [1/2]

template<typename _Tp, typename _Alloc>

template<typename _ForwardIterator>

void vector::_M_range_insert	(	iterator	__pos,
		_ForwardIterator	__first,
		_ForwardIterator	__last,
		std::forward_iterator_tag	)

constexprprotected

Definition at line 954 of file vector.tcc.

◆ _M_range_insert() [2/2]

template<typename _Tp, typename _Alloc>

template<typename _InputIterator>

void vector::_M_range_insert	(	iterator	__pos,
		_InputIterator	__first,
		_InputIterator	__last,
		std::input_iterator_tag	)

constexprprotected

Definition at line 932 of file vector.tcc.

◆ _M_realloc_append()

template<typename _Tp, typename _Alloc>

template<typename... _Args>

void vector::_M_realloc_append ( _Args &&... __args )

constexprprotected

Definition at line 565 of file vector.tcc.

◆ _M_realloc_insert()

template<typename _Tp, typename _Alloc>

template<typename... _Args>

void vector::_M_realloc_insert	(	iterator	__position,
		_Args &&...	__args )

constexprprotected

Definition at line 458 of file vector.tcc.

◆ _M_shrink_to_fit()

template<typename _Tp, typename _Alloc>

bool vector::_M_shrink_to_fit ( )

constexprprotected

Definition at line 918 of file vector.tcc.

◆ _S_check_init_len()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

static constexpr size_type std::vector< _Tp, _Alloc >::_S_check_init_len	(	size_type	__n,
		const allocator_type &	__a )

inlinestaticconstexprprotected

Definition at line 2203 of file stl_vector.h.

◆ _S_max_size()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

static constexpr size_type std::vector< _Tp, _Alloc >::_S_max_size ( const _Tp_alloc_type & __a )

inlinestaticconstexprprotectednoexcept

Definition at line 2212 of file stl_vector.h.

◆ assign() [1/3]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>

void std::vector< _Tp, _Alloc >::assign	(	_InputIterator	__first,
		_InputIterator	__last )

inlineconstexpr

Assigns a range to a vector.

Parameters

__first	An input iterator.
__last	An input iterator.

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

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

Definition at line 885 of file stl_vector.h.

◆ assign() [2/3]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::assign ( initializer_list< value_type > __l )

inlineconstexpr

Assigns an initializer list to a vector.

Parameters

__l	An initializer_list.

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

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

Definition at line 912 of file stl_vector.h.

◆ assign() [3/3]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::assign	(	size_type	__n,
		const value_type &	__val )

inlineconstexpr

Assigns a given value to a vector.

Parameters

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

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

Definition at line 865 of file stl_vector.h.

◆ at() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reference std::vector< _Tp, _Alloc >::at ( size_type __n )

inlinenodiscardconstexpr

Provides access to the data contained in the vector.

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 vector. The function throws out_of_range if the check fails.

Definition at line 1303 of file stl_vector.h.

◆ at() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reference std::vector< _Tp, _Alloc >::at ( size_type __n ) const

inlinenodiscardconstexpr

Provides access to the data contained in the vector.

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 vector. The function throws out_of_range if the check fails.

Definition at line 1322 of file stl_vector.h.

◆ back() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reference std::vector< _Tp, _Alloc >::back ( ) const

inlinenodiscardconstexprnoexcept

Returns a read-only (constant) reference to the data at the last element of the vector.

Definition at line 1370 of file stl_vector.h.

◆ back() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reference std::vector< _Tp, _Alloc >::back ( )

inlinenodiscardconstexprnoexcept

Returns a read/write reference to the data at the last element of the vector.

Definition at line 1358 of file stl_vector.h.

◆ begin() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_iterator std::vector< _Tp, _Alloc >::begin ( ) const

inlinenodiscardconstexprnoexcept

Returns a read-only (constant) iterator that points to the first element in the vector. Iteration is done in ordinary element order.

Definition at line 998 of file stl_vector.h.

◆ begin() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::begin ( )

inlinenodiscardconstexprnoexcept

Returns a read/write iterator that points to the first element in the vector. Iteration is done in ordinary element order.

Definition at line 988 of file stl_vector.h.

◆ capacity()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

size_type std::vector< _Tp, _Alloc >::capacity ( ) const

inlinenodiscardconstexprnoexcept

Returns the total number of elements that the vector can hold before needing to allocate more memory.

Definition at line 1198 of file stl_vector.h.

Referenced by operator=(), and reserve().

◆ cbegin()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_iterator std::vector< _Tp, _Alloc >::cbegin ( ) const

inlineconstexprnoexcept

Returns a read-only (constant) iterator that points to the first element in the vector. Iteration is done in ordinary element order.

Definition at line 1069 of file stl_vector.h.

Referenced by std::vector< _Tp, polymorphic_allocator< _Tp > >::erase(), std::vector< _Tp, polymorphic_allocator< _Tp > >::erase(), std::vector< _Tp, polymorphic_allocator< _Tp > >::insert(), std::vector< _Tp, polymorphic_allocator< _Tp > >::insert(), and std::vector< _Tp, polymorphic_allocator< _Tp > >::insert().

◆ cend()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_iterator std::vector< _Tp, _Alloc >::cend ( ) const

inlineconstexprnoexcept

Returns a read-only (constant) iterator that points one past the last element in the vector. Iteration is done in ordinary element order.

Definition at line 1079 of file stl_vector.h.

◆ clear()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::clear ( )

inlineconstexprnoexcept

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 1853 of file stl_vector.h.

Referenced by operator=().

◆ crbegin()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reverse_iterator std::vector< _Tp, _Alloc >::crbegin ( ) const

inlineconstexprnoexcept

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

Definition at line 1089 of file stl_vector.h.

◆ crend()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reverse_iterator std::vector< _Tp, _Alloc >::crend ( ) const

inlineconstexprnoexcept

Returns a read-only (constant) reverse iterator that points to one before the first element in the vector. Iteration is done in reverse element order.

Definition at line 1099 of file stl_vector.h.

◆ data() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const _Tp * std::vector< _Tp, _Alloc >::data ( ) const

inlinenodiscardconstexprnoexcept

Definition at line 1390 of file stl_vector.h.

◆ data() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

_Tp * std::vector< _Tp, _Alloc >::data ( )

inlinenodiscardconstexprnoexcept

Returns a pointer such that [data(), data() + size()) is a valid range. For a non-empty vector, data() == &front().

Definition at line 1385 of file stl_vector.h.

◆ emplace()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename... _Args>

iterator std::vector< _Tp, _Alloc >::emplace	(	const_iterator	__position,
		_Args &&...	__args )

inlineconstexpr

Inserts an object in vector before specified iterator.

Parameters

__position	A const_iterator into the vector.
__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. Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 1471 of file stl_vector.h.

◆ emplace_back()

template<typename _Tp, typename _Alloc>

template<typename... _Args>

vector< _Tp, _Alloc >::reference vector::emplace_back ( _Args &&... __args )

constexpr

Definition at line 115 of file vector.tcc.

◆ empty()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

bool std::vector< _Tp, _Alloc >::empty ( ) const

inlinenodiscardconstexprnoexcept

Returns true if the vector is empty. (Thus begin() would equal end().)

Definition at line 1213 of file stl_vector.h.

Referenced by std::piecewise_constant_distribution< _RealType >::densities(), std::piecewise_linear_distribution< _RealType >::densities(), and std::discrete_distribution< _IntType >::probabilities().

◆ end() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_iterator std::vector< _Tp, _Alloc >::end ( ) const

inlinenodiscardconstexprnoexcept

Returns a read-only (constant) iterator that points one past the last element in the vector. Iteration is done in ordinary element order.

Definition at line 1018 of file stl_vector.h.

◆ end() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::end ( )

inlinenodiscardconstexprnoexcept

Returns a read/write iterator that points one past the last element in the vector. Iteration is done in ordinary element order.

Definition at line 1008 of file stl_vector.h.

Referenced by std::vector< _Tp, polymorphic_allocator< _Tp > >::vector(), std::vector< _Tp, polymorphic_allocator< _Tp > >::back(), std::vector< _Tp, polymorphic_allocator< _Tp > >::back(), std::vector< _Tp, polymorphic_allocator< _Tp > >::crbegin(), std::vector< _Tp, polymorphic_allocator< _Tp > >::empty(), __gnu_parallel::multiway_merge_exact_splitting(), std::operator<=>(), operator=(), std::operator==(), std::vector< _Tp, polymorphic_allocator< _Tp > >::rbegin(), and std::vector< _Tp, polymorphic_allocator< _Tp > >::rbegin().

◆ erase() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::erase	(	const_iterator	__first,
		const_iterator	__last )

inlineconstexpr

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 vector accordingly.

Note This operation could be expensive and if it is frequently used the user should consider using std::list. The user is also 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 1810 of file stl_vector.h.

◆ erase() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::erase ( const_iterator __position )

inlineconstexpr

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 vector by one.

Note This operation could be expensive and if it is frequently used the user should consider using std::list. The user is also 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 1782 of file stl_vector.h.

◆ front() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reference std::vector< _Tp, _Alloc >::front ( ) const

inlinenodiscardconstexprnoexcept

Returns a read-only (constant) reference to the data at the first element of the vector.

Definition at line 1346 of file stl_vector.h.

◆ front() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reference std::vector< _Tp, _Alloc >::front ( )

inlinenodiscardconstexprnoexcept

Returns a read/write reference to the data at the first element of the vector.

Definition at line 1334 of file stl_vector.h.

◆ get_allocator()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

allocator_type std::_Vector_base< _Tp, _Alloc >::get_allocator ( ) const

inlineconstexprnoexcept

Get a copy of the memory allocation object.

Definition at line 317 of file stl_vector.h.

References get_allocator().

Referenced by get_allocator().

◆ insert() [1/5]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

template<typename _InputIterator, typename = std::_RequireInputIter<_InputIterator>>

iterator std::vector< _Tp, _Alloc >::insert	(	const_iterator	__position,
		_InputIterator	__first,
		_InputIterator	__last )

inlineconstexpr

Inserts a range into the vector.

Parameters

__position	A const_iterator into the vector.
__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 vector before the location specified by pos.

Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 1607 of file stl_vector.h.

◆ insert() [2/5]

template<typename _Tp, typename _Alloc>

vector< _Tp, _Alloc >::iterator vector::insert	(	const_iterator	__position,
		const value_type &	__x )

constexpr

Inserts given value into vector before specified iterator.

Parameters

__position	A const_iterator into the vector.
__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. Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 137 of file vector.tcc.

References vector(), std::begin(), std::cbegin(), std::end(), insert(), and std::move().

Referenced by insert().

◆ insert() [3/5]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::insert	(	const_iterator	__position,
		initializer_list< value_type >	__l )

inlineconstexpr

Inserts an initializer_list into the vector.

Parameters

__position	An iterator into the vector.
__l	An initializer_list.

This function will insert copies of the data in the initializer_list l into the vector before the location specified by position.

Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 1536 of file stl_vector.h.

◆ insert() [4/5]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::insert	(	const_iterator	__position,
		size_type	__n,
		const value_type &	__x )

inlineconstexpr

Inserts a number of copies of given data into the vector.

Parameters

__position	A const_iterator into the vector.
__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.

Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 1562 of file stl_vector.h.

◆ insert() [5/5]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

iterator std::vector< _Tp, _Alloc >::insert	(	const_iterator	__position,
		value_type &&	__x )

inlineconstexpr

Inserts given rvalue into vector before specified iterator.

Parameters

__position	A const_iterator into the vector.
__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. Note that this kind of operation could be expensive for a vector and if it is frequently used the user should consider using std::list.

Definition at line 1518 of file stl_vector.h.

◆ max_size()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

size_type std::vector< _Tp, _Alloc >::max_size ( ) const

inlinenodiscardconstexprnoexcept

Returns the size() of the largest possible vector.

Definition at line 1118 of file stl_vector.h.

Referenced by reserve().

◆ operator=() [1/3]

template<typename _Tp, typename _Alloc>

vector< _Tp, _Alloc > & vector::operator= ( const vector< _Tp, _Alloc > & __x )

constexpr

Vector assignment operator.

Parameters

__x	A vector of identical element and allocator types.

All the elements of __x are copied, but any unused capacity in __x will not be copied.

Whether the allocator is copied depends on the allocator traits.

Definition at line 214 of file vector.tcc.

References vector(), std::__addressof(), std::_Destroy(), _M_allocate_and_copy(), begin(), capacity(), clear(), std::end(), end(), std::size(), and size().

◆ operator=() [2/3]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

vector & std::vector< _Tp, _Alloc >::operator= ( initializer_list< value_type > __l )

inlineconstexpr

Vector list assignment operator.

Parameters

__l	An initializer_list.

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

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

Definition at line 845 of file stl_vector.h.

◆ operator=() [3/3]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

vector & std::vector< _Tp, _Alloc >::operator= ( vector< _Tp, _Alloc > && __x )

inlineconstexprnoexcept

Vector move assignment operator.

Parameters

__x	A vector of identical element and allocator types.

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

Whether the allocator is moved depends on the allocator traits.

Definition at line 823 of file stl_vector.h.

◆ operator[]() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reference std::vector< _Tp, _Alloc >::operator[] ( size_type __n ) const

inlinenodiscardconstexprnoexcept

Subscript access to the data contained in the vector.

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 1270 of file stl_vector.h.

◆ operator[]() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reference std::vector< _Tp, _Alloc >::operator[] ( size_type __n )

inlinenodiscardconstexprnoexcept

Subscript access to the data contained in the vector.

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 1251 of file stl_vector.h.

◆ pop_back()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::pop_back ( )

inlineconstexprnoexcept

Removes last element.

This is a typical stack operation. It shrinks the vector 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 1447 of file stl_vector.h.

◆ push_back() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::push_back ( const value_type & __x )

inlineconstexpr

Add data to the end of the vector.

Parameters

__x	Data to be added.

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

Definition at line 1406 of file stl_vector.h.

◆ push_back() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::push_back ( value_type && __x )

inlineconstexpr

Definition at line 1423 of file stl_vector.h.

◆ rbegin() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reverse_iterator std::vector< _Tp, _Alloc >::rbegin ( ) const

inlinenodiscardconstexprnoexcept

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

Definition at line 1038 of file stl_vector.h.

◆ rbegin() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reverse_iterator std::vector< _Tp, _Alloc >::rbegin ( )

inlinenodiscardconstexprnoexcept

Returns a read/write reverse iterator that points to the last element in the vector. Iteration is done in reverse element order.

Definition at line 1028 of file stl_vector.h.

◆ rend() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

const_reverse_iterator std::vector< _Tp, _Alloc >::rend ( ) const

inlinenodiscardconstexprnoexcept

Returns a read-only (constant) reverse iterator that points to one before the first element in the vector. Iteration is done in reverse element order.

Definition at line 1058 of file stl_vector.h.

◆ rend() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

reverse_iterator std::vector< _Tp, _Alloc >::rend ( )

inlinenodiscardconstexprnoexcept

Returns a read/write reverse iterator that points to one before the first element in the vector. Iteration is done in reverse element order.

Definition at line 1048 of file stl_vector.h.

◆ reserve()

template<typename _Tp, typename _Alloc>

void vector::reserve ( size_type __n )

constexpr

Attempt to preallocate enough memory for specified number of elements.

Parameters

__n	Number of elements required.

Exceptions

std::length_error If n exceeds max_size().

This function attempts to reserve enough memory for the vector to hold the specified number of elements. If the number requested is more than max_size(), length_error is thrown.

The advantage of this function is that if optimal code is a necessity and the user can determine the number of elements that will be required, the user can reserve the memory in advance, and thus prevent a possible reallocation of memory and copying of vector data.

Definition at line 70 of file vector.tcc.

References std::_Destroy(), _M_allocate_and_copy(), capacity(), max_size(), and std::size().

◆ resize() [1/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::resize ( size_type __new_size )

inlineconstexpr

Resizes the vector to the specified number of elements.

Parameters

__new_size Number of elements the vector should contain.

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

Definition at line 1133 of file stl_vector.h.

Referenced by __gnu_parallel::__shrink_and_double(), and __gnu_parallel::multiway_merge_exact_splitting().

◆ resize() [2/2]

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::resize	(	size_type	__new_size,
		const value_type &	__x )

inlineconstexpr

Resizes the vector to the specified number of elements.

Parameters

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

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

Definition at line 1154 of file stl_vector.h.

◆ shrink_to_fit()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::shrink_to_fit ( )

inlineconstexpr

A non-binding request to reduce capacity() to size().

Definition at line 1188 of file stl_vector.h.

◆ size()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

size_type std::vector< _Tp, _Alloc >::size ( ) const

inlinenodiscardconstexprnoexcept

Returns the number of elements in the vector.

Definition at line 1107 of file stl_vector.h.

Referenced by __gnu_parallel::__shrink(), __gnu_parallel::__shrink_and_double(), std::vector< _Tp, polymorphic_allocator< _Tp > >::_M_range_check(), __gnu_parallel::list_partition(), operator=(), std::operator==(), std::vector< _Tp, polymorphic_allocator< _Tp > >::resize(), and std::vector< _Tp, polymorphic_allocator< _Tp > >::resize().

◆ swap()

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

void std::vector< _Tp, _Alloc >::swap ( vector< _Tp, _Alloc > & __x )

inlineconstexprnoexcept

Swaps data with another vector.

Parameters

__x	A vector of the same element and allocator types.

This exchanges the elements between two vectors in constant time. (Three pointers, so it should be quite fast.) Note that the global std::swap() function is specialized such that std::swap(v1,v2) will feed to this function.

Whether the allocators are swapped depends on the allocator traits.

Definition at line 1834 of file stl_vector.h.

Member Data Documentation

◆ _M_impl

template<typename _Tp, typename _Alloc = std::allocator<_Tp>>

_Vector_impl std::_Vector_base< _Tp, _Alloc >::_M_impl

protected

Definition at line 382 of file stl_vector.h.

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

Public Types

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ allocator_type

◆ const_iterator

◆ const_pointer

◆ const_reference

◆ const_reverse_iterator

◆ difference_type

◆ iterator

◆ pointer

◆ reference

◆ reverse_iterator

◆ size_type

◆ value_type

Constructor & Destructor Documentation

◆ vector() [1/10]

◆ vector() [2/10]

◆ vector() [3/10]

◆ vector() [4/10]

◆ vector() [5/10]

◆ vector() [6/10]

◆ vector() [7/10]

◆ vector() [8/10]

◆ vector() [9/10]

◆ vector() [10/10]

◆ ~vector()

Member Function Documentation

◆ _M_allocate()

◆ _M_allocate_and_copy()

◆ _M_assign_aux() [1/2]

◆ _M_assign_aux() [2/2]

◆ _M_assign_dispatch() [1/2]

◆ _M_assign_dispatch() [2/2]

◆ _M_check_len()

◆ _M_create_storage()

◆ _M_deallocate()

◆ _M_default_append()

◆ _M_default_initialize()

◆ _M_emplace_aux() [1/2]

◆ _M_emplace_aux() [2/2]

◆ _M_erase() [1/2]

◆ _M_erase() [2/2]

◆ _M_erase_at_end()

◆ _M_fill_append()

◆ _M_fill_assign()

◆ _M_fill_initialize()

◆ _M_fill_insert()

◆ _M_get_Tp_allocator() [1/2]

◆ _M_get_Tp_allocator() [2/2]

◆ _M_insert_aux()

◆ _M_insert_dispatch() [1/2]

◆ _M_insert_dispatch() [2/2]

◆ _M_insert_rval()

◆ _M_range_check()

◆ _M_range_initialize() [1/2]

◆ _M_range_initialize() [2/2]

◆ _M_range_initialize_n()

◆ _M_range_insert() [1/2]

◆ _M_range_insert() [2/2]

◆ _M_realloc_append()

◆ _M_realloc_insert()

◆ _M_shrink_to_fit()

◆ _S_check_init_len()

◆ _S_max_size()

◆ assign() [1/3]

◆ assign() [2/3]

◆ assign() [3/3]

◆ at() [1/2]

◆ at() [2/2]

◆ back() [1/2]

◆ back() [2/2]

◆ begin() [1/2]

◆ begin() [2/2]

◆ capacity()

◆ cbegin()