Public Types | |
| typedef _Alloc | allocator_type |
|
typedef __gnu_cxx::__normal_iterator < const_pointer, vector > | const_iterator |
|
typedef _Tp_alloc_type::const_pointer | const_pointer |
|
typedef _Tp_alloc_type::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 _Tp_alloc_type::pointer | pointer |
| typedef _Tp_alloc_type::reference | reference |
|
typedef std::reverse_iterator < iterator > | reverse_iterator |
| typedef size_t | size_type |
| typedef _Tp | value_type |
Public Member Functions | |
| vector () | |
| vector (const allocator_type &__a) | |
| vector (size_type __n) | |
| vector (size_type __n, const value_type &__value, const allocator_type &__a=allocator_type()) | |
| vector (const vector &__x) | |
| vector (vector &&__x) | |
| vector (initializer_list< value_type > __l, const allocator_type &__a=allocator_type()) | |
| template<typename _InputIterator > | |
| vector (_InputIterator __first, _InputIterator __last, const allocator_type &__a=allocator_type()) | |
| ~vector () | |
| void | assign (size_type __n, const value_type &__val) |
| template<typename _InputIterator > | |
| void | assign (_InputIterator __first, _InputIterator __last) |
| void | assign (initializer_list< value_type > __l) |
| reference | at (size_type __n) |
| const_reference | at (size_type __n) const |
| reference | back () |
| const_reference | back () const |
| iterator | begin () |
| const_iterator | begin () const |
| size_type | capacity () const |
| const_iterator | cbegin () const |
| const_iterator | cend () const |
| void | clear () |
| const_reverse_iterator | crbegin () const |
| const_reverse_iterator | crend () const |
| _Tp * | data () |
| const _Tp * | data () const |
| template<typename... _Args> | |
| iterator | emplace (iterator __position, _Args &&...__args) |
| template<typename... _Args> | |
| void | emplace_back (_Args &&...__args) |
| bool | empty () const |
| iterator | end () |
| const_iterator | end () const |
| iterator | erase (iterator __position) |
| iterator | erase (iterator __first, iterator __last) |
| reference | front () |
| const_reference | front () const |
| iterator | insert (iterator __position, const value_type &__x) |
| iterator | insert (iterator __position, value_type &&__x) |
| void | insert (iterator __position, initializer_list< value_type > __l) |
| void | insert (iterator __position, size_type __n, const value_type &__x) |
| template<typename _InputIterator > | |
| void | insert (iterator __position, _InputIterator __first, _InputIterator __last) |
| size_type | max_size () const |
| vector & | operator= (const vector &__x) |
| vector & | operator= (vector &&__x) |
| vector & | operator= (initializer_list< value_type > __l) |
| reference | operator[] (size_type __n) |
| const_reference | operator[] (size_type __n) const |
| void | pop_back () |
| void | push_back (const value_type &__x) |
| void | push_back (value_type &&__x) |
| reverse_iterator | rbegin () |
| const_reverse_iterator | rbegin () const |
| reverse_iterator | rend () |
| const_reverse_iterator | rend () const |
| void | reserve (size_type __n) |
| void | resize (size_type __new_size) |
| void | resize (size_type __new_size, const value_type &__x) |
| void | shrink_to_fit () |
| size_type | size () const |
| void | swap (vector &__x) |
Protected Member Functions | |
| _Tp_alloc_type::pointer | _M_allocate (size_t __n) |
| template<typename _ForwardIterator > | |
| pointer | _M_allocate_and_copy (size_type __n, _ForwardIterator __first, _ForwardIterator __last) |
| template<typename _InputIterator > | |
| void | _M_assign_aux (_InputIterator __first, _InputIterator __last, std::input_iterator_tag) |
| template<typename _ForwardIterator > | |
| void | _M_assign_aux (_ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag) |
| template<typename _Integer > | |
| void | _M_assign_dispatch (_Integer __n, _Integer __val, __true_type) |
| template<typename _InputIterator > | |
| void | _M_assign_dispatch (_InputIterator __first, _InputIterator __last, __false_type) |
| size_type | _M_check_len (size_type __n, const char *__s) const |
| void | _M_deallocate (typename _Tp_alloc_type::pointer __p, size_t __n) |
| void | _M_default_append (size_type __n) |
| void | _M_default_initialize (size_type __n) |
| void | _M_erase_at_end (pointer __pos) |
| void | _M_fill_assign (size_type __n, const value_type &__val) |
| void | _M_fill_initialize (size_type __n, const value_type &__value) |
| void | _M_fill_insert (iterator __pos, size_type __n, const value_type &__x) |
| _Tp_alloc_type & | _M_get_Tp_allocator () |
| const _Tp_alloc_type & | _M_get_Tp_allocator () const |
| template<typename _Integer > | |
| void | _M_initialize_dispatch (_Integer __n, _Integer __value, __true_type) |
| template<typename _InputIterator > | |
| void | _M_initialize_dispatch (_InputIterator __first, _InputIterator __last, __false_type) |
| template<typename... _Args> | |
| void | _M_insert_aux (iterator __position, _Args &&...__args) |
| template<typename _Integer > | |
| void | _M_insert_dispatch (iterator __pos, _Integer __n, _Integer __val, __true_type) |
| template<typename _InputIterator > | |
| void | _M_insert_dispatch (iterator __pos, _InputIterator __first, _InputIterator __last, __false_type) |
| void | _M_range_check (size_type __n) const |
| template<typename _InputIterator > | |
| void | _M_range_initialize (_InputIterator __first, _InputIterator __last, std::input_iterator_tag) |
| template<typename _ForwardIterator > | |
| void | _M_range_initialize (_ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag) |
| template<typename _InputIterator > | |
| void | _M_range_insert (iterator __pos, _InputIterator __first, _InputIterator __last, std::input_iterator_tag) |
| template<typename _ForwardIterator > | |
| void | _M_range_insert (iterator __pos, _ForwardIterator __first, _ForwardIterator __last, std::forward_iterator_tag) |
| allocator_type | get_allocator () const |
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.
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 180 of file stl_vector.h.
Constructor & Destructor Documentation
|
inline |
Default constructor creates no elements.
Definition at line 217 of file stl_vector.h.
|
inlineexplicit |
Creates a vector with no elements.
- Parameters
-
a An allocator object.
Definition at line 225 of file stl_vector.h.
|
inlineexplicit |
Creates a vector with default constructed elements.
- Parameters
-
n The number of elements to initially create.
This constructor fills the vector with n default constructed elements.
Definition at line 237 of file stl_vector.h.
|
inline |
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 249 of file stl_vector.h.
|
inline |
Vector copy constructor.
- Parameters
-
x A vector of identical element and allocator types.
The newly-created vector uses a copy of the allocation object used by x. All the elements of x are copied, but any extra memory in x (for fast expansion) will not be copied.
Definition at line 278 of file stl_vector.h.
|
inline |
Vector move constructor.
- Parameters
-
x A vector of identical element and allocator types.
The newly-created vector contains the exact contents of x. The contents of x are a valid, but unspecified vector.
Definition at line 294 of file stl_vector.h.
|
inline |
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 308 of file stl_vector.h.
|
inline |
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 334 of file stl_vector.h.
|
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 349 of file stl_vector.h.
Member Function Documentation
|
inlineprotected |
Memory expansion handler. Uses the member allocation function to obtain n bytes of memory, and then copies [first,last) into it.
Definition at line 1049 of file stl_vector.h.
|
inlineprotected |
Safety check used only from at().
Definition at line 716 of file stl_vector.h.
Referenced by std::vector< _State >::at().
|
inline |
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. Old data may be lost.
Definition at line 412 of file stl_vector.h.
Referenced by std::vector< _State >::assign(), and std::vector< _State >::operator=().
|
inline |
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. Old data may be lost.
Definition at line 429 of file stl_vector.h.
|
inline |
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. Old data may be lost.
Definition at line 449 of file stl_vector.h.
|
inline |
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 735 of file stl_vector.h.
|
inline |
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 753 of file stl_vector.h.
|
inline |
Returns a read/write reference to the data at the last element of the vector.
Definition at line 780 of file stl_vector.h.
Referenced by std::piecewise_constant_distribution< _RealType >::max(), and std::piecewise_linear_distribution< _RealType >::max().
|
inline |
Returns a read-only (constant) reference to the data at the last element of the vector.
Definition at line 788 of file stl_vector.h.
|
inline |
Returns a read/write iterator that points to the first element in the vector. Iteration is done in ordinary element order.
Definition at line 463 of file stl_vector.h.
Referenced by std::vector< _State >::crend(), std::vector< _State >::empty(), std::vector< _State >::front(), __gnu_parallel::multiseq_partition(), __gnu_parallel::multiseq_selection(), __gnu_parallel::multiway_merge_exact_splitting(), std::vector< _Tp, _Alloc >::operator=(), std::operator==(), std::vector< _State >::rend(), and std::vector< _State >::vector().
|
inline |
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 472 of file stl_vector.h.
|
inline |
Returns the total number of elements that the vector can hold before needing to allocate more memory.
Definition at line 650 of file stl_vector.h.
|
inline |
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 536 of file stl_vector.h.
|
inline |
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 545 of file stl_vector.h.
|
inline |
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 1039 of file stl_vector.h.
Referenced by std::vector< _State >::operator=().
|
inline |
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 554 of file stl_vector.h.
|
inline |
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 563 of file stl_vector.h.
|
inline |
| iterator std::vector< _Tp, _Alloc >::emplace | ( | iterator | __position, |
| _Args &&... | __args | ||
| ) |
Inserts an object in vector before specified iterator.
- Parameters
-
position An 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.
Referenced by std::vector< _State >::insert().
|
inline |
Returns true if the vector is empty. (Thus begin() would equal end().)
Definition at line 659 of file stl_vector.h.
Referenced by std::piecewise_constant_distribution< _RealType >::densities(), std::piecewise_linear_distribution< _RealType >::densities(), std::piecewise_constant_distribution< _RealType >::intervals(), std::piecewise_linear_distribution< _RealType >::intervals(), std::discrete_distribution< _IntType >::max(), std::piecewise_constant_distribution< _RealType >::max(), std::piecewise_linear_distribution< _RealType >::max(), std::piecewise_constant_distribution< _RealType >::min(), std::piecewise_linear_distribution< _RealType >::min(), and std::discrete_distribution< _IntType >::probabilities().
|
inline |
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 481 of file stl_vector.h.
Referenced by std::vector< _State >::back(), std::vector< _State >::crbegin(), std::vector< _State >::empty(), __gnu_parallel::multiseq_partition(), __gnu_parallel::multiseq_selection(), __gnu_parallel::multiway_merge_exact_splitting(), std::vector< _Tp, _Alloc >::operator=(), std::operator==(), std::vector< _State >::push_back(), std::vector< _State >::rbegin(), std::vector< _State >::resize(), and std::vector< _State >::vector().
|
inline |
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 490 of file stl_vector.h.
| vector< _Tp, _Alloc >::iterator vector::erase | ( | iterator | __position | ) |
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 136 of file vector.tcc.
References std::end().
| vector< _Tp, _Alloc >::iterator vector::erase | ( | iterator | __first, |
| iterator | __last | ||
| ) |
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 148 of file vector.tcc.
References std::end().
|
inline |
Returns a read/write reference to the data at the first element of the vector.
Definition at line 764 of file stl_vector.h.
Referenced by std::vector< _State >::data(), std::piecewise_constant_distribution< _RealType >::min(), and std::piecewise_linear_distribution< _RealType >::min().
|
inline |
Returns a read-only (constant) reference to the data at the first element of the vector.
Definition at line 772 of file stl_vector.h.
| vector< _Tp, _Alloc >::iterator vector::insert | ( | iterator | __position, |
| const value_type & | __x | ||
| ) |
Inserts given value into vector before specified iterator.
- Parameters
-
position An 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 109 of file vector.tcc.
References std::begin(), and std::end().
Referenced by std::vector< _State >::insert(), and std::vector< _State >::resize().
|
inline |
Inserts given rvalue into vector before specified iterator.
- Parameters
-
position An 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 908 of file stl_vector.h.
|
inline |
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 925 of file stl_vector.h.
|
inline |
Inserts a number of copies of given data into the vector.
- Parameters
-
position An iterator into the vector. n Number of elements to be inserted. x Data to be inserted.
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 943 of file stl_vector.h.
|
inline |
Inserts a range into the vector.
- Parameters
-
position An iterator into the vector. first An input iterator. last An input iterator.
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 962 of file stl_vector.h.
|
inline |
Returns the size() of the largest possible vector.
Definition at line 575 of file stl_vector.h.
| vector< _Tp, _Alloc > & vector::operator= | ( | const vector< _Tp, _Alloc > & | __x | ) |
Vector assignment operator.
- Parameters
-
x A vector of identical element and allocator types.
All the elements of x are copied, but any extra memory in x (for fast expansion) will not be copied. Unlike the copy constructor, the allocator object is not copied.
Definition at line 162 of file vector.tcc.
References std::_Destroy(), std::begin(), std::vector< _Tp, _Alloc >::begin(), std::end(), std::vector< _Tp, _Alloc >::end(), std::vector< _Tp, _Alloc >::size(), and std::size().
|
inline |
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). x is a valid, but unspecified vector.
Definition at line 373 of file stl_vector.h.
|
inline |
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. Old data may be lost.
Definition at line 394 of file stl_vector.h.
|
inline |
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 695 of file stl_vector.h.
|
inline |
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 710 of file stl_vector.h.
|
inline |
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 857 of file stl_vector.h.
|
inline |
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 826 of file stl_vector.h.
Referenced by __gnu_parallel::multiseq_partition(), and __gnu_parallel::multiseq_selection().
|
inline |
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 499 of file stl_vector.h.
|
inline |
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 508 of file stl_vector.h.
|
inline |
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 517 of file stl_vector.h.
|
inline |
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 526 of file stl_vector.h.
| void vector::reserve | ( | size_type | __n | ) |
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 67 of file vector.tcc.
References std::_Destroy(), and std::size().
|
inline |
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 589 of file stl_vector.h.
Referenced by __gnu_parallel::__shrink_and_double(), and __gnu_parallel::multiway_merge_exact_splitting().
|
inline |
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 609 of file stl_vector.h.
|
inline |
A non-binding request to reduce capacity() to size().
Definition at line 641 of file stl_vector.h.
|
inline |
Returns the number of elements in the vector.
Definition at line 570 of file stl_vector.h.
Referenced by __gnu_parallel::__shrink(), __gnu_parallel::__shrink_and_double(), std::vector< _State >::_M_range_check(), __gnu_parallel::list_partition(), std::discrete_distribution< _IntType >::max(), std::vector< _Tp, _Alloc >::operator=(), std::operator==(), and std::vector< _State >::resize().
|
inline |
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.
Definition at line 1019 of file stl_vector.h.
Referenced by std::vector< _State >::operator=(), and std::swap().
The documentation for this class was generated from the following files:
