std::vector::push_back

 

C++

Язык

Понятия (концепции)

Утилиты

Строки

Контейнеры

Алгоритмы

Итераторы

Работа с числами

Ввод / вывод

Локализация

Регулярные выражения (C++11)

Атомарные примитивы (C++11)

Потоки (C++11)

 

Контейнеры

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

 

std::vector

Член функций Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::vector

vector::~vector

vector::operator=

vector::assign

vector::get_allocator

Элемент доступа Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::at

vector::operator[]

vector::front

vector::back

vector::data (C++11)

Итераторы Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::begin vector::cbegin (C++11)

vector::end vector::cend (C++11)

vector::rbegin vector::crbegin (C++11)

vector::rend vector::crend (C++11)

Потенциала Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::empty

vector::size

vector::max_size

vector::reserve

vector::capacity

vector::shrink_to_fit (C++11)

Модификаторы Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

vector::clear

vector::insert

vector::emplace (C++11)

vector::erase

vector::push_back

vector::emplace_back (C++11)

vector::pop_back

vector::resize

vector::swap

 

void push_back( const T& value );
void push_back( T&& value );		(начиная с C++11)

Добавляет данный элемент value до конца контейнера.

Original:

Appends the given element value to the end of the container.

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If the new size() is greater than capacity(), all iterators and references are invalidated. Otherwise no iterators and references are invalidated.

Параметры

value

-

Значение элемента для добавления Original: the value of the element to append The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Требования

1)

value должны быть CopyInsertable

Original:

value shall be CopyInsertable

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2)

value должны быть MoveInsertable

Original:

value shall be MoveInsertable

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Возвращаемое значение

(Нет)

Original:

(none)

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Сложность

Постоянное.

Original:

Constant.

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Пример

Следующий код использует push_back добавить несколько целых чисел std::vector<int>

Original:

The following code uses push_back to add several integers to a std::vector<int>:

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#include <vector>
#include <iostream>
 
int main()
{
    std::vector<int> numbers;
 
    numbers.push_back(42);
    numbers.push_back(314159);
 
    for (int i : numbers) { // c++11 range-based for loop
        std::cout << i << '\n';
    }
 
    return 0;
}

Вывод:

42
314159

См. также

None

emplace_back (C++11)	Элементы конструкций на месте в конце Original: constructs elements in-place at the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public функция-член)
pop_back	удаляет последний элемент Original: removes the last element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public функция-член)